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BMC Medical Research Methodology

Ausgabe 1/2019

Inhalt (242 Artikel)

Open Access Research article

Use of saliva to monitor meningococcal vaccine responses: proposing a threshold in saliva as surrogate of protection

Mariëtte B. van Ravenhorst, Fiona R. M. van der Klis, Debbie M. van Rooijen, Elisabeth A. M. Sanders, Guy A. M. Berbers

Open Access Research article

Evidence-based sizing of non-inferiority trials using decision models

Iris Lansdorp-Vogelaar, Reshma Jagsi, Jinani Jayasekera, Natasha K. Stout, Sandra A. Mitchell, Eric J. Feuer

Open Access Research article

A scoping review of the problems and solutions associated with contamination in trials of complex interventions in mental health

Nicholas Magill, Ruth Knight, Paul McCrone, Khalida Ismail, Sabine Landau

Open Access Research article

Population-based assessment of health, healthcare utilisation, and specific needs of Syrian migrants in Germany: what is the best sampling method?

Tobias Weinmann, Amal AlZahmi, Andreas Schneck, Julian Felipe Mancera Charry, Günter Fröschl, Katja Radon

Open Access Research article

Providing quality data in health care - almost perfect inter-rater agreement in the Norwegian tonsil surgery register

Siri Wennberg, Lasse A. Karlsen, Joacim Stalfors, Mette Bratt, Vegard Bugten

Open Access Research article

The power of the group: comparison of interviews and group concept mapping for identifying patient-important outcomes of care

Kristin L. Rising, Marianna LaNoue, Alexzandra T. Gentsch, Amanda M. B. Doty, Amy Cunningham, Brendan G. Carr, Judd E. Hollander, Lori Latimer, Larry Loebell, Gail Weingarten, Neva White, Geoffrey Mills

Open Access Technical advance

Methods of sample size calculation in descriptive retrospective burden of illness studies

Karissa M. Johnston, Pardis Lakzadeh, Bonnie M. K. Donato, Shelagh M. Szabo

Open Access Research article

Modelling reassurances of clinicians with hidden Markov models

Valentin Popov, Alesha Ellis-Robinson, Gerald Humphris

Open Access Research article

The current use of feasibility studies in the assessment of feasibility for stepped-wedge cluster randomised trials: a systematic review

Caroline A. Kristunas, Karla Hemming, Helen Eborall, Sandra Eldridge, Laura J. Gray

Open Access Research article

A semi-parametric mixed models for longitudinally measured fasting blood sugar level of adult diabetic patients

Tafere Tilahun Aniley, Legesse Kassa Debusho, Zelalem Mehari Nigusie, Wondwosen Kassahun Yimer, Belay Birlie Yimer

Open Access Research article

Multiple imputation methods for handling missing values in a longitudinal categorical variable with restrictions on transitions over time: a simulation study

Anurika Priyanjali De Silva, Margarita Moreno-Betancur, Alysha Madhu De Livera, Katherine Jane Lee, Julie Anne Simpson

Open Access Research article

Reliability of patient-reported complications following hip or knee arthroplasty procedures

Sung Mu Heo, Justine M. Naylor, Ian A. Harris, Timothy R. Churches

Open Access Research article

Likelihood-based random-effects meta-analysis with few studies: empirical and simulation studies

Svenja E. Seide, Christian Röver, Tim Friede

Open Access Research article

The triple variable index combines information generated over time from common monitoring variables to identify patients expressing distinct patterns of intraoperative physiology

Michael P. Schnetz, Harry S. Hochheiser, David J. Danks, Douglas P. Landsittel, Keith M. Vogt, James W. Ibinson, Steven L. Whitehurst, Sean P. McDermott, Melissa Giraldo Duque, Ata M. Kaynar

Open Access Technical advance

How to design a dose-finding study using the continual reassessment method

Graham M. Wheeler, Adrian P. Mander, Alun Bedding, Kristian Brock, Victoria Cornelius, Andrew P. Grieve, Thomas Jaki, Sharon B. Love, Lang’o Odondi, Christopher J. Weir, Christina Yap, Simon J. Bond

Open Access Research article

Comparison of logistic-regression based methods for simple mediation analysis with a dichotomous outcome variable

Judith J. M. Rijnhart, Jos W. R. Twisk, Iris Eekhout, Martijn W. Heymans

Open Access Research article

Migraine day frequency in migraine prevention: longitudinal modelling approaches

Gian Luca Di Tanna, Joshua K. Porter, Richard B. Lipton, Alan Brennan, Stephen Palmer, Anthony J. Hatswell, Sandhya Sapra, Guillermo Villa

Open Access Research article

Re-formulating Gehan’s design as a flexible two-stage single-arm trial

Michael J. Grayling, Adrian P. Mander

Open Access Research article

Estimating the loss of lifetime function using flexible parametric relative survival models

Lasse H. Jakobsen, Therese M.-L. Andersson, Jorne L. Biccler, Tarec C. El-Galaly, Martin Bøgsted

Open Access Research article

Does the provision of a DVD-based audio-visual presentation improve recruitment in a clinical trial? A randomised trial of DVD trial invitations

Amy Rogers, Robert W. V. Flynn, Isla S. Mackenzie, Thomas M. MacDonald

Open Access Research

Improving reporting of meta-ethnography: the eMERGe reporting guidance

Emma F. France, Maggie Cunningham, Nicola Ring, Isabelle Uny, Edward A. S. Duncan, Ruth G. Jepson, Margaret Maxwell, Rachel J. Roberts, Ruth L. Turley, Andrew Booth, Nicky Britten, Kate Flemming, Ian Gallagher, Ruth Garside, Karin Hannes, Simon Lewin, George W. Noblit, Catherine Pope, James Thomas, Meredith Vanstone, Gina M. A. Higginbottom, Jane Noyes

Open Access Research article

Challenges and benefits of integrating diverse sampling strategies in the observation of cardiovascular risk factors (ORISCAV-LUX 2) study

Ala’a Alkerwi, Jessica Pastore, Nicolas Sauvageot, Gwenaëlle Le Coroller, Valéry Bocquet, Marylène d’Incau, Gloria Aguayo, Brice Appenzeller, Dritan Bejko, Torsten Bohn, Laurent Malisoux, Sophie Couffignal, Stephanie Noppe, Charles Delagardelle, Jean Beissel, Anna Chioti, Saverio Stranges, Jean-Claude Schmit

Open Access Research article

Spurious interaction as a result of categorization

Magne Thoresen

Open Access Research article

Concurrent validity of the Fitbit for assessing sedentary behavior and moderate-to-vigorous physical activity

Nicklaus Redenius, Youngwon Kim, Wonwoo Byun

Open Access Research article

Chronic Headache Education and Self-management Study (CHESS) – a mixed method feasibility study to inform the design of a randomised controlled trial

Kimberley White, Rachel Potter, Shilpa Patel, Vivien P. Nichols, Kirstie L. Haywood, Siew Wan Hee, Dipesh Mistry, Dawn Carnes, Stephanie J. C. Taylor, Martin Underwood, Manjit S. Matharu

Open Access Research article

Efficient two-step multivariate random effects meta-analysis of individual participant data for longitudinal clinical trials using mixed effects models

Hisashi Noma, Kazushi Maruo, Masahiko Gosho, Stephen Z. Levine, Yair Goldberg, Stefan Leucht, Toshi A. Furukawa

Open Access Research article

A co-produced method to involve service users in research: the SUCCESS model

Bridie Angela Evans, Alison Porter, Helen Snooks, Vanessa Burholt

Open Access Research article

A methodological systematic review of meta-ethnography conduct to articulate the complex analytical phases

Emma F. France, Isabelle Uny, Nicola Ring, Ruth L. Turley, Margaret Maxwell, Edward A. S. Duncan, Ruth G. Jepson, Rachel J. Roberts, Jane Noyes

Open Access Technical advance

A comparison of the polytomous Rasch analysis output of RUMM2030 and R (ltm/eRm/TAM/lordif)

Michael Robinson, Andrew M. Johnson, David M. Walton, Joy C. MacDermid

Open Access Research article

Aims, design and preliminary findings of the Hellenic National Nutrition and Health Survey (HNNHS)

Emmanuella Magriplis, Ioannis Dimakopoulos, Dimitra Karageorgou, Anastasia-Vasiliki Mitsopoulou, Ioanna Bakogianni, Renata Micha, George Michas, Triantafyllia Ntouroupi, Sophia-Maria Tsaniklidou, Kostantina Argyri, George Danezis, Constantinos Georgiou, Demosthenes B. Panagiotakos, Antonis Zampelas, Evangelia Fappa, Eleni-Maria Theodoraki, Eirini Trichia, Theodora-Eirini Sialvera, Aggeliki Varytimiadi, Eleni Spyreli, Michalis Chourdakis, Antonis Koutelidakis, George Karlis, Stauroula Zacharia, Anna Papageorgiou, George P. Chrousos, Georgios Dedoussis, George Dimitriadis, Ioannis Yannis Manios, Eleftheria Roma

Open Access Research article

Strategies for recruitment and retention of underrepresented populations with chronic obstructive pulmonary disease for a clinical trial

Beatrice Huang, Denise De Vore, Chris Chirinos, Jessica Wolf, Devon Low, Rachel Willard-Grace, Stephanie Tsao, Chris Garvey, Doranne Donesky, George Su, David H. Thom

Open Access Research article

The Chinese version of attitudes towards guidelines scale: validity and reliability assessment

Wen Yan, Qian Chen, Xuemei Zhang, Marko Elovainio, Yan Huang

Open Access Research article

Barriers and recruitment strategies for precarious status migrants in Montreal, Canada

Margaux Fête, Josephine Aho, Magalie Benoit, Patrick Cloos, Valéry Ridde

Open Access Research article

Patient perspectives on use of electronic health records for research recruitment

Laura M. Beskow, Kathleen M. Brelsford, Catherine M. Hammack

Open Access Research article

Comparison of psychometric properties between recall methods of interview-based physical activity questionnaires: a systematic review

Kenji Doma, Renée Speyer, Lauren Alese Parsons, Reinie Cordier

Open Access Research article

Performance of the WHOQOL-BREF among Norwegian substance use disorder patients

Ashley Elizabeth Muller, Svetlana Skurtveit, Thomas Clausen

Open Access Review

A review of spline function procedures in R

Aris Perperoglou, Willi Sauerbrei, Michal Abrahamowicz, Matthias Schmid

Open Access Research article

Tools used to assess the quality of peer review reports: a methodological systematic review

Cecilia Superchi, José Antonio González, Ivan Solà, Erik Cobo, Darko Hren, Isabelle Boutron

Open Access Research article

Comparison of methods for early-readmission prediction in a high-dimensional heterogeneous covariates and time-to-event outcome framework

Simon Bussy, Raphaël Veil, Vincent Looten, Anita Burgun, Stéphane Gaïffas, Agathe Guilloux, Brigitte Ranque, Anne-Sophie Jannot

Open Access Research article

Sample size calculation for estimating key epidemiological parameters using serological data and mathematical modelling

Stéphanie Blaizot, Sereina A. Herzog, Steven Abrams, Heidi Theeten, Amber Litzroth, Niel Hens

Open Access Research article

Validation of the global activity limitation indicator in Taiwan

Ru-Ling Hsiao, Chih-Hsun Wu, Che-Wei Hsu, Yasuhiko Saito, Yu-Hsuan Lin

Open Access Research article

Bias in pharmacoepidemiologic studies using secondary health care databases: a scoping review

Guillermo Prada-Ramallal, Bahi Takkouche, Adolfo Figueiras

Open Access Research article

Sample size calculations for model validation in linear regression analysis

Show-Li Jan, Gwowen Shieh

Open Access Debate

Advancing complexity science in healthcare research: the logic of logic models

Thomas Mills, Rebecca Lawton, Laura Sheard

Open Access Technical advance

A Bayesian hierarchical logistic regression model of multiple informant family health histories

Jielu Lin, Melanie F. Myers, Laura M. Koehly, Christopher Steven Marcum

Open Access Research article

Implementation fidelity in a complex intervention promoting psychosocial well-being following stroke: an explanatory sequential mixed methods study

Line Kildal Bragstad, Berit Arnesveen Bronken, Unni Sveen, Ellen Gabrielsen Hjelle, Gabriele Kitzmüller, Randi Martinsen, Kari J. Kvigne, Margrete Mangset, Marit Kirkevold

Open Access Research article

The influence of interviewers on survey responses among female sex workers in Zambia

Guy Harling, Michael M. Chanda, Katrina F. Ortblad, Magdalene Mwale, Steven Chongo, Catherine Kanchele, Nyambe Kamungoma, Leah G. Barresi, Till Bärnighausen, Catherine E. Oldenburg

Open Access Research article

Two new approaches for the visualisation of models for network meta-analysis

Martin Law, Navid Alam, Areti Angeliki Veroniki, Yi Yu, Dan Jackson

Open Access Research article

Adaptation and psychometric properties of the Norwegian version of the heart continuity of care questionnaire (HCCQ)

Irene Valaker, Bengt Fridlund, Tore Wentzel-Larsen, Heather Hadjistavropoulos, Jan Erik Nordrehaug, Svein Rotevatn, Maj-Britt Råholm, Tone M. Norekvål

Open Access Research article

Assessing the maturity of the healthcare system for integrated care: testing measurement properties of the SCIROCCO tool

Liset Grooten, Hubertus Johannes Maria Vrijhoef, Stefano Calciolari, Laura Guadalupe González Ortiz, Marcela Janečková, Mirella M. N. Minkman, Dirk Devroey

Open Access Research article

Machine learning in medicine: a practical introduction

Jenni A. M. Sidey-Gibbons, Chris J. Sidey-Gibbons

Open Access Research article

Methods to increase response rates to a population-based maternity survey: a comparison of two pilot studies

Siân Harrison, Jane Henderson, Fiona Alderdice, Maria A. Quigley

Open Access Research article

Strategies for eliciting and synthesizing evidence for guidelines in rare diseases

Menaka Pai, Cindy H. T. Yeung, Elie A. Akl, Andrea Darzi, Christopher Hillis, Kimberly Legault, Joerg J. Meerpohl, Nancy Santesso, Domenica Taruscio, Madeleine Verhovsek, Holger J. Schünemann, Alfonso Iorio

Open Access Research article

Understanding the importance of key risk factors in predicting chronic bronchitic symptoms using a machine learning approach

Huiyu Deng, Robert Urman, Frank D. Gilliland, Sandrah P. Eckel

Open Access Technical advance

Bayes factors for superiority, non-inferiority, and equivalence designs

Don van Ravenzwaaij, Rei Monden, Jorge N. Tendeiro, John P. A. Ioannidis

Open Access Research article

Comparison and validation of accelerometer wear time and non-wear time algorithms for assessing physical activity levels in children and adolescents

Jérémy Vanhelst, Florian Vidal, Elodie Drumez, Laurent Béghin, Jean-Benoît Baudelet, Stéphanie Coopman, Frédéric Gottrand

Open Access Research article

Languages for different health information readers: multitrait-multimethod content analysis of Cochrane systematic reviews textual summary formats

Jasna Karačić, Pierpaolo Dondio, Ivan Buljan, Darko Hren, Ana Marušić

Open Access Research article

Assessments of attrition bias in Cochrane systematic reviews are highly inconsistent and thus hindering trial comparability

Andrija Babic, Ruzica Tokalic, João Amílcar Silva Cunha, Ivana Novak, Jelena Suto, Marin Vidak, Ivana Miosic, Ivana Vuka, Tina Poklepovic Pericic, Livia Puljak

Open Access Research article

The judgement of biases included in the category “other bias” in Cochrane systematic reviews of interventions: a systematic survey

Andrija Babic, Andela Pijuk, Lucie Brázdilová, Yuliyana Georgieva, Marco António Raposo Pereira, Tina Poklepovic Pericic, Livia Puljak

Open Access Research article

Protocol registration or development may benefit the design, conduct and reporting of dose-response meta-analysis: empirical evidence from a literature survey

Chang Xu, Liang-Liang Cheng, Yu Liu, Peng-Li Jia, Ming-Yue Gao, Chao Zhang

Open Access Software

Development of an interactive web-based tool to conduct and interrogate meta-analysis of diagnostic test accuracy studies: MetaDTA

Suzanne C. Freeman, Clareece R. Kerby, Amit Patel, Nicola J. Cooper, Terry Quinn, Alex J. Sutton

Open Access Research article

Quality in perinatal care: applying performance measurement using joint commission on accreditation of healthcare organizations indicators in Italy

Claudia Pileggi, Lorena Squillace, Mariavalentina Giordano, Rosa Papadopoli, Aida Bianco, Maria Pavia

Open Access Research article

Reliability of routinely collected anthropometric measurements in primary care

Sarah Carsley, Patricia C. Parkin, Karen Tu, Eleanor Pullenayegum, Nav Persaud, Jonathon L. Maguire, Catherine S. Birken, Catherine S. Birken, Jonathon L. Maguire, Eddy Lau, Andreas Laupacis, Patricia C. Parkin, Michael Salter, Peter Szatmari, Shannon Weir, Laura N. Anderson, Cornelia M. Borkhoff, David W. H. Dai, Christine Kowal, Dalah Mason, Murtala Abdurrahman, Barbara Anderson, Kelly Anderson, Gordon Arbess, Jillian Baker, Tony Barozzino, Sylvie Bergeron, Dimple Bhagat, Nicholas Blanchette, Gary Bloch, Joey Bonifacio, Ashna Bowry, Anne Brown, Jennifer Bugera, Caroline Calpin, Douglas Campbell, Sohail Cheema, Elaine Cheng, Brian Chisamore, Evelyn Constantin, Erin Culbert, Karoon Danayan, Paul Das, Mary Beth Derocher, Anh Do, Michael Dorey, Kathleen Doukas, Anne Egger, Allison Farber, Amy Freedman, Sloane Freeman, Sharon Gazeley, Charlie Guiang, Dan Ha, Shuja Hafiz, Curtis Handford, Laura Hanson, Leah Harrington, Hailey Hatch, Teresa Hughes, Sheila Jacobson, Lukasz Jagiello, Gwen Jansz, Mona Jasuja, Paul Kadar, Tara Kiran, Lauren Kitney, Holly Knowles, Bruce Kwok, Sheila Lakhoo, Margarita Lam-Antoniades, Eddy Lau, Fok-Han Leung, Alan Li, Patricia Li, Jennifer Loo, Joanne Louis, Sarah Mahmoud, Jessica Malach, Roy Male, Vashti Mascoll, Aleks Meret, Rosemary Moodie, Julia Morinis, Maya Nader, Katherine Nash, Sharon Naymark, James Owen, Jane Parry, Michael Peer, Kifi Pena, Marty Perlmutar, Navindra Persaud, Andrew Pinto, Michelle Porepa, Vikky Qi, Nasreen Ramji, Noor Ramji, Jesleen Rana, Danyaal Raza, Alana Rosenthal, Katherine Rouleau, Janet Saunderson, Rahul Saxena, Vanna Schiralli, Michael Sgro, Hafiz Shuja, Susan Shepherd, Barbara Smiltnieks, Cinntha Srikanthan, Carolyn Taylor, Suzanne Turner, Fatima Uddin, Meta van den Heuvel, Joanne Vaughan, Thea Weisdorf, Sheila Wijayasinghe, Peter Wong, Anne Wormsbecker, Ethel Ying, Elizabeth Young, Michael Zajdman, Farnaz Bazeghi, Vincent Bouchard, Marivic Bustos, Charmaine Camacho, Dharma Dalwadi, Christine Koroshegyi, Tarandeep Malhi, Sharon Thadani, Julia Thompson, Laurie Thompson, Mary Aglipay, Imaan Bayoumi, Sarah Carsley, Katherine Cost, Karen Eny, Theresa Kim, Laura Kinlin, Jessica Omand, Shelley Vanderhout, Leigh Vanderloo, Christopher Allen, Bryan Boodhoo, Olivia Chan, Judith Hall, Peter Juni, Gerald Lebovic, Karen Pope, Kevin Thorpe, Rita Kandel

Open Access Research article

Incorporating individual historical controls and aggregate treatment effect estimates into a Bayesian survival trial: a simulation study

Caroline Brard, Lisa V. Hampson, Nathalie Gaspar, Marie-Cécile Le Deley, Gwénaël Le Teuff

Open Access Research article

The agreement between chronic diseases reported by patients and derived from administrative data in patients undergoing joint arthroplasty

Bélène Podmore, Andrew Hutchings, Sujith Konan, Jan van der Meulen

Open Access Research article

Prospective multicenter randomized patient recruitment and sample collection to enable future measurements of sputum biomarkers of inflammation in an observational study of cystic fibrosis

Theodore G. Liou, Frederick R. Adler, Natalia Argel, Fadi Asfour, Perry S. Brown, Barbara A. Chatfield, Cori L. Daines, Dixie Durham, Jessica A. Francis, Barbara Glover, Theresa Heynekamp, John R. Hoidal, Judy L. Jensen, Ruth Keogh, Carol M. Kopecky, Noah Lechtzin, Yanping Li, Jerimiah Lysinger, Osmara Molina, Craig Nakamura, Kristyn A. Packer, Katie R. Poch, Alexandra L. Quittner, Peggy Radford, Abby J. Redway, Scott D. Sagel, Shawna Sprandel, Jennifer L. Taylor-Cousar, Jane B. Vroom, Ryan Yoshikawa, John P. Clancy, J. Stuart Elborn, Kenneth N. Olivier, David R. Cox

Open Access Research article

Obstacles to recruitment in paediatric studies focusing on mental health in a physical health context: the experiences of clinical gatekeepers in an observational cohort study

Maria E. Loades, Lucie Smith, Nina Higson-Sweeney, Lucy Beasant, Paul Stallard, David Kessler, Esther Crawley

Open Access Research article

The Danish health and morbidity surveys: study design and participant characteristics

Heidi Amalie Rosendahl Jensen, Ola Ekholm, Michael Davidsen, Anne Illemann Christensen

Open Access Research article

Which design to evaluate complex interventions? Toward a methodological framework through a systematic review

Laetitia Minary, Justine Trompette, Joëlle Kivits, Linda Cambon, Cyril Tarquinio, François Alla

Open Access Research article

Determining a cutoff score for the family burden interview schedule using three statistical methods

Yu Yu, Zi-Wei Liu, Wei Zhou, Mei Zhao, Bing-Wei Tang, Shui-Yuan Xiao

Open Access Database

Veterans Affairs patient database (VAPD 2014–2017): building nationwide granular data for clinical discovery

Xiao Qing Wang, Brenda M. Vincent, Wyndy L. Wiitala, Kaitlyn A. Luginbill, Elizabeth M. Viglianti, Hallie C. Prescott, Theodore J. Iwashyna

Open Access Research article

Prior medication adherence of participants and non participants of a randomized controlled trial to improve patient adherence in cardiovascular risk management

A. Sieben, S. J. H. Bredie, J. C. H. B. M. Luijten, C. J. H. M. van Laarhoven, S. van Dulmen, H. A. W. van Onzenoort

Open Access Technical advance

A novel approach to determine two optimal cut-points of a continuous predictor with a U-shaped relationship to hazard ratio in survival data: simulation and application

Yimin Chen, Jialing Huang, Xianying He, Yongxiang Gao, Gehendra Mahara, Zhuochen Lin, Jinxin Zhang

Open Access Research article

Reducing defects in the datasets of clinical research studies: conformance with data quality metrics

Naila A. Shaheen, Bipin Manezhi, Abin Thomas, Mohammed AlKelya

Open Access Research article

Using Bayesian adaptive designs to improve phase III trials: a respiratory care example

Elizabeth G. Ryan, Julie Bruce, Andrew J. Metcalfe, Nigel Stallard, Sarah E. Lamb, Kert Viele, Duncan Young, Simon Gates

Open Access Research article

A Bayesian multivariate latent t-regression model for assessing the association between corticosteroid and cranial radiation exposures and cardiometabolic complications in survivors of childhood acute lymphoblastic leukemia: a PETALE study

Miguel Caubet Fernandez, Simon Drouin, Mariia Samoilenko, Sophia Morel, Maja Krajinovic, Caroline Laverdière, Daniel Sinnett, Emile Levy, Valérie Marcil, Geneviève Lefebvre

Open Access Research article

Q sample construction: a novel approach incorporating a Delphi technique to explore opinions about codeine dependence

Melissa Kirschbaum, Tony Barnett, Merylin Cross

Open Access Research article

The utility of multivariate outlier detection techniques for data quality evaluation in large studies: an application within the ONDRI project

Kelly M. Sunderland, Derek Beaton, Julia Fraser, Donna Kwan, Paula M. McLaughlin, Manuel Montero-Odasso, Alicia J. Peltsch, Frederico Pieruccini-Faria, Demetrios J. Sahlas, Richard H. Swartz, Robert Bartha, Sandra E. Black, Michael Borrie, Dale Corbett, Elizabeth Finger, Morris Freedman, Barry Greenberg, David A. Grimes, Robert A. Hegele, Chris Hudson, Anthony E. Lang, Mario Masellis, William E. McIlroy, David G. Munoz, Douglas P. Munoz, J. B. Orange, Michael J. Strong, Sean Symons, Maria Carmela Tartaglia, Angela Troyer, Lorne Zinman, Stephen C. Strother, Malcolm A. Binns

Open Access Research article

Correcting for misclassification and selection effects in estimating net survival in clinical trials

Juste Aristide Goungounga, Célia Touraine, Nathalie Grafféo, Roch Giorgi

Open Access Debate

Baseline testing in cluster randomised controlled trials: should this be done?

Jaime E. Bolzern, Alex Mitchell, David J. Torgerson

Open Access Research article

Evaluating antimalarial efficacy in single-armed and comparative drug trials using competing risk survival analysis: a simulation study

Prabin Dahal, Philippe J. Guerin, Ric N. Price, Julie A. Simpson, Kasia Stepniewska

Open Access Research article

Understanding the predictive value of continuous markers for censored survival data using a likelihood ratio approach

Andrew M. Smith, John P. Christodouleas, Wei-Ting Hwang

Open Access Study protocol

A protocol for a multi-site, spatially-referenced household survey in slum settings: methods for access, sampling frame construction, sampling, and field data collection

Pauline Bakibinga, Caroline Kabaria, Catherine Kyobutungi, Anthony Manyara, Nelson Mbaya, Shukri Mohammed, Anne Njeri, Iqbal Azam, Romaina Iqbal, Shahida Mazaffar, Narjis Rizvi, Tayyaba Rizvi, Hamid ur Rehman, Syed A. K. Shifat Ahmed, Ornob Alam, Afreen Zaman Khan, Omar Rahman, Rita Yusuf, Doyin Odubanjo, Montunrayo Ayobola, Funke Fayehun, Akinyinka Omigbodun, Eme Owoaje, Olalekan Taiwo, Peter Diggle, Navneet Aujla, Yen-Fu Chen, Paramjit Gill, Frances Griffiths, Bronwyn Harris, Jason Madan, Richard J. Lilford, Oyinlola R. Oyobode, Vangelis Pitidis, Joao Porto de Albequerque, Jo Sartori, Celia Taylor, Philip Ulbrich, Olalekan Uthman, Samuel I. Watson, Godwin Yeboah

Open Access Research article

Estimands to quantify prolonged hospital stay associated with nosocomial infections

Martin Wolkewitz, Martin Schumacher, Gerta Rücker, Stephan Harbarth, Jan Beyersmann

Open Access Research article

Adherence to reporting guidelines increases the number of citations: the argument for including a methodologist in the editorial process and peer-review

Marta Vilaró, Jordi Cortés, Albert Selva-O’Callaghan, Agustín Urrutia, Josep-Maria Ribera, Francesc Cardellach, Xavier Basagaña, Matthew Elmore, Miquel Vilardell, Douglas Altman, José-Antonio González, Erik Cobo

Open Access Research article

Systematic mapping of existing tools to appraise methodological strengths and limitations of qualitative research: first stage in the development of the CAMELOT tool

Heather Menzies Munthe-Kaas, Claire Glenton, Andrew Booth, Jane Noyes, Simon Lewin

Open Access Research article

Comparison of reproductive history gathered by interview and by vital records linkage after 40 years of follow-up: Bogalusa Babies

Emily W. Harville, Marni Jacobs, Tian Shu, Dorothy Breckner, Maeve Wallace

Open Access Research article

Coding algorithms for defining Charlson and Elixhauser co-morbidities in Read-coded databases

David Metcalfe, James Masters, Antonella Delmestri, Andrew Judge, Daniel Perry, Cheryl Zogg, Belinda Gabbe, Matthew Costa

Open Access Research article

Feasibility of identifying important changes in care management resulting from cardiovascular magnetic resonance (CMR) using hospital episode data in patients who activate the primary percutaneous coronary intervention (PPCI) pathway

Maria Pufulete, Jessica Harris, Stephen Dorman, Lynn Cook, Chiara Bucciarelli-Ducci, John P. Greenwood, Richard Anderson, Rachel Brierley, Barnaby C. Reeves

Open Access Research article

Facilitating validation of prediction models: a comparison of manual and semi-automated validation using registry-based data of breast cancer patients in the Netherlands

Cornelia D. van Steenbeek, Marissa C. van Maaren, Sabine Siesling, Annemieke Witteveen, Xander A. A. M. Verbeek, Hendrik Koffijberg

Open Access Technical advance

Introducing a new estimator and test for the weighted all-cause hazard ratio

Ann-Kathrin Ozga, Geraldine Rauch

Open Access Research article

Effective stakeholder engagement: design and implementation of a clinical trial (SWOG S1415CD) to improve cancer care

Sarah Barger, Sean D. Sullivan, Ari Bell-Brown, Brad Bott, Anne Marie Ciccarella, John Golenski, Mark Gorman, Judy Johnson, Karma Kreizenbeck, Florence Kurttila, Ginny Mason, Jamie Myers, Carole Seigel, James L. Wade III, Guneet Walia, Kate Watabayashi, Gary H. Lyman, Scott D. Ramsey

Open Access Research article

Understanding health management and safety decisions using signal processing and machine learning

Lisa Aufegger, Colin Bicknell, Emma Soane, Hutan Ashrafian, Ara Darzi

Open Access Research article

Validation of the short assessment of health literacy (SAHL-D) and short-form development: Rasch analysis

A. J. Woudstra, C. S. Meppelink, H. Pander Maat, J. Oosterhaven, M. P. Fransen, A. L. Dima

Open Access Research article

The impact of varying cluster size in cross-sectional stepped-wedge cluster randomised trials

James Thomas Martin, Karla Hemming, Alan Girling

Open Access Debate

Does big data require a methodological change in medical research?

Amke Caliebe, Friedhelm Leverkus, Gerd Antes, Michael Krawczak

Open Access Research article

Consensus workshops on the development of an ADHD medication management protocol using QbTest: developing a clinical trial protocol with multidisciplinary stakeholders

Charlotte L. Hall, Susan Brown, Marilyn James, Jennifer L. Martin, Nikki Brown, Kim Selby, Julie Clarke, Laura Williams, Kapil Sayal, Chris Hollis, Madeleine J. Groom

Open Access Research article

How different online recruitment methods impact on recruitment rates for the web-based coortesnaweb project: a randomised trial

Cauane Blumenberg, Ana Maria Baptista Menezes, Helen Gonçalves, Maria Cecília Formoso Assunção, Fernando César Wehrmeister, Aluísio J. D. Barros

Open Access Research article

How do studies assess the preventability of readmissions? A systematic review with narrative synthesis

Eva-Linda Kneepkens, Corline Brouwers, Richelle Glory Singotani, Martine C. de Bruijne, Fatma Karapinar-Çarkit

Open Access Research article

Comparison of a time-varying covariate model and a joint model of time-to-event outcomes in the presence of measurement error and interval censoring: application to kidney transplantation

Kristen R. Campbell, Elizabeth Juarez-Colunga, Gary K. Grunwald, James Cooper, Scott Davis, Jane Gralla

Open Access Research article

Ranking hospital performance based on individual indicators: can we increase reliability by creating composite indicators?

Peter C. Austin, Iris E. Ceyisakar, Ewout W. Steyerberg, Hester F. Lingsma, Perla J. Marang-van de Mheen

Open Access Research article

Single screening versus conventional double screening for study selection in systematic reviews: a methodological systematic review

Siw Waffenschmidt, Marco Knelangen, Wiebke Sieben, Stefanie Bühn, Dawid Pieper

Open Access Debate

Scoping implementation science for the beginner: locating yourself on the “subway line” of translational research

Meghan B. Lane-Fall, Geoffrey M. Curran, Rinad S. Beidas

Open Access Research article

Evaluating selection bias in a population-based cohort study with low baseline participation: the LIFE-Adult-Study

Cornelia Enzenbach, Barbara Wicklein, Kerstin Wirkner, Markus Loeffler

Open Access Research article

Ideal vs. real: a systematic review on handling covariates in randomized controlled trials

Jody D. Ciolino, Hannah L. Palac, Amy Yang, Mireya Vaca, Hayley M. Belli

Open Access Research article

Methodology and reporting characteristics of studies using interrupted time series design in healthcare

Jemma Hudson, Shona Fielding, Craig R. Ramsay

Open Access Research article

Effect of prepaid and promised financial incentive on follow-up survey response in cigarette smokers: a randomized controlled trial

Yee Tak Derek Cheung, Xue Weng, Man Ping Wang, Sai Yin Ho, Antonio Cho Shing Kwong, Vienna Wai Yin Lai, Tai Hing Lam

Open Access Research article

Development of a measurement system for complex oral information transfer in medical consultations

J. M. Nordfalk, P. Gulbrandsen, J. Gerwing, M. Nylenna, J. Menichetti

Open Access Research article

Health technology assessment (HTA) of optoelectronic biosensors for oncology by analytic hierarchy process (AHP) and Likert scale

Giovanni Improta, Antonietta Perrone, Mario Alessandro Russo, Maria Triassi

Open Access Research article

Test equating sleep scales: applying the Leunbach’s model

Núria Duran Adroher, Svend Kreiner, Carolyn Young, Roger Mills, Alan Tennant

Open Access Research article

Incidence of advanced colorectal cancer in Germany: comparing claims data and cancer registry data

Katja Anita Oppelt, Sabine Luttmann, Klaus Kraywinkel, Ulrike Haug

Open Access Research article

Sequence symmetry analysis graphic adjustment for prescribing trends

Adrian Kym Preiss, Elizabeth Ellen Roughead, Nicole Leanne Pratt

Open Access Research article

Means of increasing response rates in a Norwegian dietary survey among infants – results from a pseudo-randomized pilot study

Jannicke Borch Myhre, Lene Frost Andersen, Kristin Holvik, Helene Astrup, Anne Lene Kristiansen

Open Access Research article

Illustration of different modelling assumptions for estimation of loss in expectation of life due to cancer

Therese M.-L. Andersson, Mark J. Rutherford, Paul C. Lambert

Open Access Research article

A community-based intervention to increase participation in cervical cancer screening among immigrants in Norway

Samera A. Qureshi, Abdi Gele, Prabhjot Kour, Kathy A. Møen, Bernadette Kumar, Esperanza Diaz

Open Access Research article

Assessment of the abstract reporting of systematic reviews of dose-response meta-analysis: a literature survey

Peng-Li Jia, Bin Xu, Jing-Min Cheng, Xi-Hao Huang, Joey S. W. Kwong, Yu Liu, Chao Zhang, Ying Han, Chang Xu

Open Access Technical advance

“Spatial heterogeneity of environmental risk in randomized prevention trials: consequences and modeling”

Abdoulaye Guindo, Issaka Sagara, Boukary Ouedraogo, Kankoe Sallah, Mahamadoun Hamady Assadou, Sara Healy, Patrick Duffy, Ogobara K. Doumbo, Alassane Dicko, Roch Giorgi, Jean Gaudart

Open Access Research article

Adaptive propensity score procedure improves matching in prospective observational trials

Dorothea Weber, Lorenz Uhlmann, Silvia Schönenberger, Meinhard Kieser

Open Access Research article

Can targeted cover letters improve participation in health surveys? Results from a randomized controlled trial

Anne Illemann Christensen, Peter Lynn, Janne Schurmann Tolstrup

Open Access Research article

Explainable statistical learning in public health for policy development: the case of real-world suicide data

Paul van Schaik, Yonghong Peng, Adedokun Ojelabi, Jonathan Ling

Open Access Research article

The association between influenza vaccination and socioeconomic status in high income countries varies by the measure used: a systematic review

Kelsey Lucyk, Kimberley A. Simmonds, Diane L. Lorenzetti, Steven J. Drews, Lawrence W. Svenson, Margaret L. Russell

Open Access Research article

Quality of maternal obstetric and neonatal care in low-income countries: development of a composite index

Danielle Wilhelm, Julia Lohmann, Manuela De Allegri, Jobiba Chinkhumba, Adamson S. Muula, Stephan Brenner

Open Access Research article

Current approaches to identify sections within clinical narratives from electronic health records: a systematic review

Alexandra Pomares-Quimbaya, Markus Kreuzthaler, Stefan Schulz

Open Access Research article

Readiness assessment for pragmatic trials (RAPT): a model to assess the readiness of an intervention for testing in a pragmatic trial

Rosa R. Baier, Eric Jutkowitz, Susan L. Mitchell, Ellen McCreedy, Vincent Mor

Open Access Research article

An information-motivation-behavioural skills analysis of long-lasting insecticidal net use among pregnant women in a hospital in North-Eastern Nigeria

Ahmed Dahiru Balami, Salmiah Md Said, Nor Afiah Mohd Zulkefli, Norsa’adah Bachok, Emmanuel Luke Balami

Open Access Research article

Patient recruitment strategies for adaptive enrichment designs with time-to-event endpoints

Ryuji Uozumi, Shinjo Yada, Atsushi Kawaguchi

Open Access Research article

Figure Interpretation Assessment Tool-Health (FIAT-health) 2.0: from a scoring instrument to a critical appraisal tool

Reinie G. Gerrits, Niek S. Klazinga, Michael J. van den Berg, Dionne S. Kringos

Open Access Research article

A plea for taking all available clinical information into account when assessing the predictive value of omics data

Alexander Volkmann, Riccardo De Bin, Willi Sauerbrei, Anne-Laure Boulesteix

Open Access Research article

Using joint models to disentangle intervention effect types and baseline confounding: an application within an intervention study in prodromal Alzheimer’s disease with Fortasyn Connect

Floor M. van Oudenhoven, Sophie H.N. Swinkels, Tobias Hartmann, Hilkka Soininen, Anneke M.J. van Hees, Dimitris Rizopoulos

Open Access Research article

Methodological steps used by authors of systematic reviews and meta-analyses of clinical trials: a cross-sectional study

Hoang Thi Nam Giang, Ali Mahmoud Ahmed, Reem Yousry Fala, Mohamed Magdy Khattab, Mona Hassan Ahmed Othman, Sara Attia Mahmoud Abdelrahman, Le Phuong Thao, Ahmed Elsaid Abd Elsamie Gabl, Samar Ahmed Elrashedy, Peter N. Lee, Kenji Hirayama, Hosni Salem, Nguyen Tien Huy

Open Access Research article

Using marginal standardisation to estimate relative risk without dichotomising continuous outcomes

Ying Chen, Yilin Ning, Shih Ling Kao, Nathalie C. Støer, Falk Müller-Riemenschneider, Kavita Venkataraman, Eric Yin Hao Khoo, E-Shyong Tai, Chuen Seng Tan

Open Access Research article

How unmeasured confounding in a competing risks setting can affect treatment effect estimates in observational studies

Michael Andrew Barrowman, Niels Peek, Mark Lambie, Glen Philip Martin, Matthew Sperrin

Open Access Research article

Refining scores based on patient reported outcomes – statistical and medical perspectives

Manuel Feißt, André Hennigs, Jörg Heil, Helfried Moosbrugger, Augustin Kelava, Ilona Stolpner, Meinhard Kieser, Geraldine Rauch

Open Access Research article

Risk of bias judgments for random sequence generation in Cochrane systematic reviews were frequently not in line with Cochrane Handbook

Ognjen Barcot, Matija Boric, Tina Poklepovic Pericic, Marija Cavar, Svjetlana Dosenovic, Ivana Vuka, Livia Puljak

Open Access Research article

High-performing physicians are more likely to participate in a research study: findings from a quality improvement study

Simone Dahrouge, Catherine Deri Armstrong, William Hogg, Jatinderpreet Singh, Clare Liddy

Open Access Research article

Indigenous traumatic brain injury research: responding to recruitment challenges in the hospital environment

Michelle S. Fitts, Taeha Condon, John Gilroy, Katrina Bird, Erica Bleakley, Lauren Matheson, Jennifer Fleming, Alan R. Clough, Adrian Esterman, Paul Maruff, India Bohanna

Open Access Research article

Consolidated criteria for strengthening reporting of health research involving indigenous peoples: the CONSIDER statement

Tania Huria, Suetonia C. Palmer, Suzanne Pitama, Lutz Beckert, Cameron Lacey, Shaun Ewen, Linda Tuhiwai Smith

Open Access Research article

Chart validation of an algorithm for identifying hereditary progressive muscular dystrophy in healthcare claims

Xiaoxue Chen, Abiy Agiro, Ann S. Martin, Ann M. Lucas, Kevin Haynes

Open Access Research article

Dynamic risk prediction for diabetes using biomarker change measurements

Layla Parast, Megan Mathews, Mark W. Friedberg

Open Access Research article

Validation of diagnosis codes to identify side of colon in an electronic health record registry

Patricia Luhn, Deborah Kuk, Gillis Carrigan, Nathan Nussbaum, Rachael Sorg, Rebecca Rohrer, Melisa G. Tucker, Brandon Arnieri, Michael D. Taylor, Neal J. Meropol

Open Access Research article

Hierarchies of evidence applied to lifestyle Medicine (HEALM): introduction of a strength-of-evidence approach based on a methodological systematic review

D. L. Katz, M. C. Karlsen, M. Chung, M. M. Shams-White, L. W. Green, J. Fielding, A. Saito, W. Willett

Open Access Research article

Insufficient uptake of systematic search methods in oncological clinical practice guideline: a systematic review

Chiara Trevisiol, Michela Cinquini, Aline S. C. Fabricio, Massimo Gion, Anne W. S. Rutjes

Open Access Research article

Methods of identifying and recruiting older people at risk of social isolation and loneliness: a mixed methods review

Janet Ige, Lynn Gibbons, Issy Bray, Selena Gray

Open Access Research article

Statistical approaches to identify subgroups in meta-analysis of individual participant data: a simulation study

Michail Belias, Maroeska M. Rovers, Johannes B. Reitsma, Thomas P. A. Debray, Joanna IntHout

Open Access Research article

A snapshot of pneumonia research activity and collaboration patterns (2001–2015): a global bibliometric analysis

José M. Ramos-Rincón, Héctor Pinargote-Celorio, Isabel Belinchón-Romero, Gregorio González-Alcaide

Open Access Research article

Graphical comparisons of relative disease burden across multiple risk factors

John Ferguson, Neil O’Leary, Fabrizio Maturo, Salim Yusuf, Martin O’Donnell

Open Access Research Article

A Bayesian non-inferiority approach using experts’ margin elicitation – application to the monitoring of safety events

Camille Aupiais, Corinne Alberti, Thomas Schmitz, Olivier Baud, Moreno Ursino, Sarah Zohar

Open Access Research article

Cross-cultural adaptation of the Pain Medication Questionnaire for use in Brazil

Sheila Raposo Galindo, Manoel Henrique da Nóbrega Marinho, Robert J. Gatchel, Tatiana de Paula Santana da Silva, Eduardo Henrique Soares Viana, Selene Cordeiro Vasconcelos, Murilo Duarte da Costa Lima

Open Access Correction

Correction to: Feasibility of identifying important changes in care management resulting from cardiovascular magnetic resonance (CMR) using hospital episode data in patients who activate the primary percutaneous coronary intervention (PPCI) pathway

Maria Pufulete, Jessica Harris, Stephen Dorman, Lynn Cook, Chiara Bucciarelli-Ducci, John P. Greenwood, Richard Anderson, Rachel Brierley, Barnaby C. Reeves

Open Access Research article

Multi-cohort modeling strategies for scalable globally accessible prostate cancer risk tools

Johanna Tolksdorf, Michael W. Kattan, Stephen A. Boorjian, Stephen J. Freedland, Karim Saba, Cedric Poyet, Lourdes Guerrios, Amanda De Hoedt, Michael A. Liss, Robin J. Leach, Javier Hernandez, Emily Vertosick, Andrew J. Vickers, Donna P. Ankerst

Open Access Research article

Acceptability and barriers to implementation of N-of-1 tests in Ethiopia - a qualitative study

Chalachew Alemayehu, Geoff Mitchell, Jane Nikles, Abraham Aseffa, Alexandra Clavarino

Open Access Research article

Incorporating adjustments for variability in control group response rates in network meta-analysis: a case study of biologics for rheumatoid arthritis

Chris Cameron, Abhishek Varu, Arthur Lau, Mahdi Gharaibeh, Marcelo Paulino, Raina Rogoza

Open Access Software

BUGSnet: an R package to facilitate the conduct and reporting of Bayesian network Meta-analyses

Audrey Béliveau, Devon J. Boyne, Justin Slater, Darren Brenner, Paul Arora

Open Access Study protocol

Building the skills and confidence of early childhood educators to work with parents: study protocol for the Partnering with Parents cluster randomised controlled trial

Zvezdana Petrovic, Olivia Clayton, Jan Matthews, Catherine Wade, Lina Tan, Denny Meyer, Antony Gates, Alex Almendingen, Warren Cann

Open Access Research article

Incorporating repeated measurements into prediction models in the critical care setting: a framework, systematic review and meta-analysis

Joost D. J. Plate, Rutger R. van de Leur, Luke P. H. Leenen, Falco Hietbrink, Linda M. Peelen, M. J. C. Eijkemans

Open Access Research article

Longitudinal inconsistency in responses to survey items that ask women about intimate partner violence

Deborah Loxton, Jennifer Powers, Natalie Townsend, Melissa L. Harris, Peta Forder

Open Access Research article

Unweighted regression models perform better than weighted regression techniques for respondent-driven sampling data: results from a simulation study

Lisa Avery, Nooshin Rotondi, Constance McKnight, Michelle Firestone, Janet Smylie, Michael Rotondi

Open Access Research article

Definition of a systematic review used in overviews of systematic reviews, meta-epidemiological studies and textbooks

Marina Krnic Martinic, Dawid Pieper, Angelina Glatt, Livia Puljak

Open Access Research article

Assessment of long-term sickness absence: content and face validity of a new questionnaire based on qualitative data from nominal groups

Kaat Goorts, Charlotte Vanovenberghe, Charlotte Lambreghts, Eline Bruneel, Dorina Rusu, Marc Du Bois, Sofie Vandenbroeck, Lode Godderis

Open Access Research article

Interpreter proxy versus healthcare interpreter for administration of patient surveys following arthroplasty: a pilot study

Daniel Xue, Timothy Churches, Elizabeth Armstrong, Rajat Mittal, Justine Maree Naylor, Ian Andrew Harris

Open Access Research article

Assessing causal treatment effect estimation when using large observational datasets

E. R. John, K. R. Abrams, C. E. Brightling, N. A. Sheehan

Open Access Research article

The feasibility of web surveys for obtaining patient-reported outcomes from cancer survivors: a randomized experiment comparing survey modes and brochure enclosures

Morgan M. Millar, Joanne W. Elena, Lisa Gallicchio, Sandra L. Edwards, Marjorie E. Carter, Kimberly A. Herget, Carol Sweeney

Open Access Research article

Modeling perinatal mortality in twins via generalized additive mixed models: a comparison of estimation approaches

Muhammad Abu Shadeque Mullah, James A. Hanley, Andrea Benedetti

Open Access Research article

Comparison of model-building strategies for excess hazard regression models in the context of cancer epidemiology

Camille Maringe, Aurélien Belot, Francisco Javier Rubio, Bernard Rachet

Open Access Research article

A review and synthesis of frameworks for engagement in health research to identify concepts of knowledge user engagement

Janet E. Jull, Laurie Davidson, Rachel Dungan, Tram Nguyen, Krista P. Woodward, Ian D. Graham

Open Access Research article

Mixing mixed-mode designs in a national health interview survey: a pilot study to assess the impact on the self-administered questionnaire non-response

Elise Braekman, Sabine Drieskens, Rana Charafeddine, Stefaan Demarest, Finaba Berete, Lydia Gisle, Jean Tafforeau, Johan Van der Heyden, Guido Van Hal

Open Access Research Article

Analysing detection of chronic diseases with prolonged sub-clinical periods: modelling and application to hypertension in the U.S.

Ralph Brinks, Sophie Kaufmann, Annika Hoyer, Edward W Gregg, Jürgen Saal

Open Access Research article

Dealing with indeterminate outcomes in antimalarial drug efficacy trials: a comparison between complete case analysis, multiple imputation and inverse probability weighting

Prabin Dahal, Kasia Stepniewska, Philippe J. Guerin, Umberto D’Alessandro, Ric N. Price, Julie A. Simpson

Open Access Technical advance

True and false positive rates for different criteria of evaluating statistical evidence from clinical trials

Don van Ravenzwaaij, John P. A. Ioannidis

Open Access Research article

Analysis of reporting completeness in exercise cancer trials: a systematic review

Jose Francisco Meneses-Echavez, Indira Rodriguez-Prieto, Mark Elkins, Javier Martínez-Torres, Lien Nguyen, Julia Bidonde

Open Access Research article

Cross-cultural validation of the Functional Vision Questionnaire for Children and Young People (FVQ_CYP) with visual impairment in the Dutch population: challenges and opportunities

Ellen B. M. Elsman, Valerija Tadić, Carel F. W. Peeters, Ger H. M. B. van Rens, Jugnoo S. Rahi, Ruth M. A. van Nispen

Open Access Research Article

Joint model robustness compared with the time-varying covariate Cox model to evaluate the association between a longitudinal marker and a time-to-event endpoint

Maeregu W. Arisido, Laura Antolini, Davide P. Bernasconi, Maria G. Valsecchi, Paola Rebora

Open Access Research article

A comparison of methods to estimate the survivor average causal effect in the presence of missing data: a simulation study

Myra B. McGuinness, Jessica Kasza, Amalia Karahalios, Robyn H. Guymer, Robert P. Finger, Julie A. Simpson

Open Access Correction

Correction to: Assessment of long-term sickness absence: content and face validity of a new questionnaire based on qualitative data from nominal groups

Kaat Goorts, Charlotte Vanovenberghe, Charlotte Lambreghts, Eline Bruneel, Dorina Rusu, Marc Du Bois, Sofie Vandenbroeck, Lode Godderis

Open Access Research article

Healthy ageing and the prediction of mortality and incidence dependence in low- and middle- income countries: a 10/66 population-based cohort study

Christina Daskalopoulou, Martin Prince, Artemis Koukounari, Josep Maria Haro, Demosthenes B. Panagiotakos, A. Matthew Prina

Open Access Research article

Development of a healthy ageing index in Latin American countries - a 10/66 dementia research group population-based study

Christina Daskalopoulou, Kia-Chong Chua, Artemis Koukounari, Francisco Félix Caballero, Martin Prince, A. Matthew Prina

Open Access Research article

Goal attainment scaling as an outcome measure in rare disease trials: a conceptual proposal for validation

C. M. W. Gaasterland, M. C. Jansen van der Weide, K. C. B. Roes, J. H. van der Lee

Open Access Research article

Value-based healthcare in ischemic stroke care: case-mix adjustment models for clinical and patient-reported outcomes

Arvind Oemrawsingh, Nikki van Leeuwen, Esmee Venema, Martien Limburg, Frank-Erik de Leeuw, Markus P. Wijffels, Aafke J. de Groot, Pieter H. E. Hilkens, Jan A. Hazelzet, Diederik W. J. Dippel, Carla H. Bakker, Helene R. Voogdt-Pruis, Hester F. Lingsma

Open Access Research article

Effectiveness of incentives and follow-up on increasing survey response rates and participation in field studies

Michael G. Smith, Maryam Witte, Sarah Rocha, Mathias Basner

Open Access Research article

Robustness of the Tariff method for diagnosing verbal autopsies: impact of additional site data on the relationship between symptom and cause

Hafizur Rahman Chowdhury, Abraham D. Flaxman, Jonathan C. Joseph, Riley H. Hazard, Nurul Alam, Ian Douglas Riley, Alan D. Lopez

Open Access Debate

DEBATE-statistical analysis plans for observational studies

Bart Hiemstra, Frederik Keus, Jørn Wetterslev, Christian Gluud, Iwan C. C. van der Horst

Open Access Research article

Recommendations to conduct and report systematic reviews in medical literature: a scoping review

Ana Penedones, Carlos Alves, Francisco Batel-Marques

Open Access Research article

Challenges of one-year longitudinal follow-up of a prospective, observational cohort study using an anonymised database: recommendations for trainee research collaboratives

Sivesh Kamarajah, Kenneth A. McLean, Aditya Borakati, Thomas M. Drake, Evelina Woin, Chetan Khatri, J. Edward Fitzgerald, Ewen M. Harrison, Aneel Bhangu, Dmitri Nepogodiev, James C. Glasbey, Joshua Burke, Michael F. Bath, Henry A. Claireaux, Buket Gundogan, Midhun Mohan, Praveena Deekonda, Chia Kong, Holly Joyce, Lisa Mcnamee, Dmitri Nepogodiev, Nishkantha Arulkumaran, Samira Bell, Fiona Duthie, Jeremy Hughes, Thomas D. Pinkney, John Prowle, Toby Richards, Mark Thomas, K. Dynes, M. Patel, P. Patel, C. Wigley, R. Suresh, A. Shaw, S. Klimach, P. Jull, D. Evans, R. Preece, I. Ibrahim, V. Manikavasagar, R. Smith, F. S. Brown, P. Deekonda, R. Teo, D. P. Y. Sim, A. Borakati, A. E. Logan, I. Barai, H. Amin, S. Suresh, R. Sethi, W. Gul, W. Bolton, O. Corbridge, L. Horne, M. Attalla, R. Morley, C. Robinson, T. Hoskins, R. McAllister, S. Lee, Y. Dennis, G. Nixon, E. Heywood, H. Wilson, L. Ng, S. Samaraweera, A. Mills, C. Doherty, E. Woin, J. Belchos, V. Phan, M. Arnold, S. Sheik-Ali, R. Suresh, A. Cordaro, E. Mills, N. Lorch, D. Thomas, B. Ibrahim, S. Chee, T. Ngan, S. Pronin, N. Thakral, T. Yeoh, J. Wilson, R. Goodson, P. Molloy, M. Akhbari, W. Gul, R. Helliwell, S. Rees, M. Al-Attar, N. Griffiths, J. Mayes, P. Thomas, S. George, A. Thind, M. Kerr, F. Shafiq, I. Yasin, M. Gallagher, E. Sewart, T. Chouari, T. Gardner, N. Goergen, J. D. B. Hayes, C. S. MacLeod, R. McCormack, A. McKinley, S. McKinstry, W. Milligan, L. Ooi, N. M. Rafiq, T. Sammut, E. Sinclair, M. Smith, C. Baker, A. P. R. Boulton, J. Collins, H. C. Copley, N. Fearnhead, H. Fox, T. Mah, J. McKenna, V. Naruka, N. Nigam, B. Nourallah, S. Perera, A. Qureshi, S. Saggar, L. Sun, X. Wang, D. D. Yang, P. Caroll, C. Doyle, S. Elangovan, A. Falamarzi, K. Gascon Perai, E. Greenan, D. Jain, M. Lang-Orsini, S. Lim, L. O’Byrne, P. Ridgway, S. Van der Laan, J. Wong, J. Arthur, J. Barclay, P. Bradley, C. Edwin, E. Finch, E. Hayashi, M. Hopkins, D. Kelly, M. Kelly, N. McCartan, A. Ormrod, A. Pakenham, J. Hayward, C. Hitchen, A. Kishore, T. Martins, J. Philomen, R. Rao, C. Rickards, N. Burns, M. Copeland, C. Durand, A. Dyal, A. Ghaffar, A. Gidwani, M. Grant, C. Gribbon, A. Gruhn, M. Leer, K. Ahmad, G. Beattie, M. Beatty, G. Campbell, G. Donaldson, S. Graham, D. Holmes, S. Kanabar, H. Liu, C. McCann, R. Stewart, S. Vara, O. Ajibola-Taylor, E. J. E. Andah, C. Ani, N. M. O. Cabdi, G. Ito, M. Jones, A. Komoriyama, P. Patel, L. Titu, M. Basra, P. Gallogly, G. Harinath, S. H. Leong, A. Pradhan, I. Siddiqui, S. Zaat, A. Ali, M. Galea, W. L. Looi, J. C. K. Ng, G. Atkin, A. Azizi, Z. Cargill, Z. China, J. Elliot, R. Jebakumar, J. Lam, G. Mudalige, C. Onyerindu, M. Renju, V. Shankar Babu, M. Hussain, N. Joji, B. Lovett, H. Mownah, B. Ali, B. Cresswell, A. K. Dhillon, Y. S. Dupaguntla, C. Hungwe, J. D. Lowe-Zinola, J. C. H. Tsang, K. Bevan, C. Cardus, A. Duggal, S. Hossain, M. McHugh, M. Scott, F. Chan, R. Evans, E. Gurung, B. Haughey, B. Jacob-Ramsdale, M. Kerr, J. Lee, E. McCann, K. O’Boyle, N. Reid, F. Hayat, S. Hodgson, R. Johnston, W. Jones, M. Khan, T. Linn, S. Long, P. Seetharam, S. Shaman, B. Smart, A. Anilkumar, J. Davies, J. Griffith, B. Hughes, Y. Islam, D. Kidanu, N. Mushaini, I. Qamar, H. Robinson, M. Schramm, C. Yan Tan, H. Apperley, C. Billyard, J. M. Blazeby, S. P. Cannon, S. Carse, A. Göpfert, A. Loizidou, J. Parkin, E. Sanders, S. Sharma, G. Slade, R. Telfer, I. Whybrow Huppatz, E. Worley, L. Chandramoorthy, C. Friend, L. Harris, P. Jain, M. J. Karim, K. Killington, J. McGillicuddy, C. Rafferty, N. Rahunathan, T. Rayne, Y. Varathan, N. Verma, D. Zanichelli, M. Arneill, F. Brown, B. Campbell, L. Crozier, J. Henry, C. McCusker, P. Prabakaran, R. Wilson, U. Asif, M. Connor, S. Dindyal, N. Math, A. Pagarkar, H. Saleem, I. Seth, S. Sharma, N. Standfield, T. Swartbol, R. Adamson, J. E. Choi, O. El Tokhy, W. Ho, N. R. Javaid, M. Kelly, A. S. Mehdi, D. Menon, I. Plumptre, S. Sturrock, J. Turner, O. Warren, E. Crane, B. Ferris, C. Gadsby, J. Smallwood, M. Vipond, V. Wilson, T. Amarnath, A. Doshi, C. Gregory, K. Kandiah, B. Powell, H. Spoor, C. Toh, R. Vizor, M. Common, K. Dunleavy, S. Harris, C. Luo, Z. Mesbah, A. Prem Kumar, A. Redmond, S. Skulsky, T. Walsh, D. Daly, L. Deery, E. Epanomeritakis, M. Harty, D. Kane, K. Khan, R. Mackey, J. McConville, K. McGinnity, G. Nixon, A. Ang, J. Y. Kee, E. Leung, S. Norman, S. V. Palaniappan, P. Partha Sarathy, T. Yeoh, J. Frost, P. Hazeldine, L. Jones, M. Karbowiak, C. Macdonald, A. Mutarambirwa, A. Omotade, M. Runkel, G. Ryan, N. Sawers, C. Searle, S. Suresh, S. Vig, A. Ahmad, R. McGartland, R. Sim, A. Song, J. Wayman, R. Brown, L. H. Chang, K. Concannon, C. Crilly, T. J. Arnold, A. Burgin, F. Cadden, C. H. Choy, M. Coleman, D. Lim, J. Luk, P. Mahankali-Rao, A. J. Prudence-Taylor, D. Ramakrishnan, J. Russell, A. Fawole, J. Gohil, B. Green, A. Hussain, L. McMenamin, L. McMenamin, M. Tang, F. Azmi, S. Benchetrit, T. Cope, A. Haque, A. Harlinska, R. Holdsworth, T. Ivo, J. Martin, T. Nisar, A. Patel, K. Sasapu, J. 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