Skip to main content

BMC Medical Research Methodology

Ausgabe 1/2012

Inhalt (190 Artikel)

Open Access Research article

Risk groups defined by Recursive Partitioning Analysis of patients with colorectal adenocarcinoma treated with colorectal resection

Yun-Jau Chang, Li-Ju Chen, Yao-Jen Chang, Kuo-Piao Chung, Mei-Shu Lai

Open Access Research article

Comparing multiple competing interventions in the absence of randomized trials using clinical risk-benefit analysis

Alejandro Lazo-Langner, Marc A Rodger, Nicholas J Barrowman, Tim Ramsay, Philip S Wells, Douglas A Coyle

Open Access Research article

A simple method for estimating relative risk using logistic regression

Fredi A Diaz-Quijano

Open Access Research article

Graphical modeling of binary data using the LASSO: a simulation study

Ralf Strobl, Eva Grill, Ulrich Mansmann

Open Access Research article

An empirical comparison of methods for analyzing correlated data from a discrete choice survey to elicit patient preference for colorectal cancer screening

Ji Cheng, Eleanor Pullenayegum, Deborah A Marshall, John K Marshall, Lehana Thabane

Open Access Research article

Quality assessment of expert answers to lay questions about cystic fibrosis from various language zones in Europe: the ECORN-CF project

Daniela d'Alquen, Kris De Boeck, Judy Bradley, Věra Vávrová, Birgit Dembski, Thomas OF Wagner, Annette Pfalz, Helge Hebestreit

Open Access Technical advance

Enhanced secondary analysis of survival data: reconstructing the data from published Kaplan-Meier survival curves

Patricia Guyot, AE Ades, Mario JNM Ouwens, Nicky J Welton

Open Access Correspondence

Using patient management as a surrogate for patient health outcomes in diagnostic test evaluation

Lukas P Staub, Sarah J Lord, R John Simes, Suzanne Dyer, Nehmat Houssami, Robert YM Chen, Les Irwig

Open Access Research article

Using a single question to assess physical activity in older adults: a reliability and validity study

Dawn P Gill, Gareth R Jones, Guangyong Zou, Mark Speechley

Open Access Research article

Ongoing monitoring of data clustering in multicenter studies

Lauren B Guthrie, Emily Oken, Jonathan AC Sterne, Matthew W Gillman, Rita Patel, Konstantin Vilchuck, Natalia Bogdanovich, Michael S Kramer, Richard M Martin

Open Access Research article

Improvement of maternal Aboriginality in NSW birth data

Fenglian Xu, Elizabeth A Sullivan, Richard C Madden, Deborah Black, Lisa R Jackson Pulver

Open Access Research article

A proof of principle for using adaptive testing in routine Outcome Monitoring: the efficiency of the Mood and Anxiety Symptoms Questionnaire -Anhedonic Depression CAT

Niels Smits, Frans G Zitman, Pim Cuijpers, Margien E den Hollander-Gijsman, Ingrid VE Carlier

Open Access Research article

Crisis-repair sequences - considerations on the classification and assessment of breaches in the therapeutic relationship

Antje Gumz, Elmar Brähler, Michael Geyer, Rainer Erices

Open Access Research article

Telephone follow-up to a mail survey: when to offer an interview compared to a reminder call

Jeanette Y Ziegenfuss, Kelly R Burmeister, Ann Harris, Stefan D Holubar, Timothy J Beebe

Open Access Research article

Reasons for and against participation in studies of medicinal therapies for women with breast cancer: a debate

Gero Luschin, Marion Habersack, Irmina-Anna Gerlich

Open Access Research article

Assessment of public health impact of work-related asthma

Maritta S Jaakkola, Jouni JK Jaakkola

Open Access Research article

Determination of inflammatory biomarkers in patients with COPD: a comparison of different assays

José L López-Campos, Elena Arellano, Carmen Calero, Ana Delgado, Eduardo Márquez, Pilar Cejudo, Francisco Ortega, Francisco Rodríguez-Panadero, Ana Montes-Worboys

Open Access Research article

Comparative effectiveness research on patients with acute ischemic stroke using Markov decision processes

Darong Wu, Yefeng Cai, Jianxiong Cai, Qiuli Liu, Yuanqi Zhao, Jingheng Cai, Min Zhao, Yonghui Huang, Liuer Ye, Yubo Lu, Xianping Guo

Open Access Research article

Should policy-makers and managers trust PSI? An empirical validation study of five patient safety indicators in a national health service

Enrique Bernal-Delgado, Sandra García-Armesto, Natalia Martínez-Lizaga, Begoña Abadía-Taira, Joaquín Beltrán-Peribañez, Salvador Peiró

Open Access Research article

Getting physicians to open the survey: little evidence that an envelope teaser increases response rates

Jeanette Y Ziegenfuss, Kelly Burmeister, Katherine M James, Lindsey Haas, Jon C Tilburt, Timothy J Beebe

Open Access Research article

Factor structure and psychometric properties of the trier inventory for chronic stress (TICS) in a representative german sample

Katja Petrowski, Sören Paul, Cornelia Albani, Elmar Brähler

Open Access Research article

The ARIC predictive model reliably predicted risk of type II diabetes in Asian populations

Calvin Woon-Loong Chin, Elian Hui San Chia, Stefan Ma, Derrick Heng, Maudrene Tan, Jeanette Lee, E Shyong Tai, Agus Salim

Open Access Research article

Non-linear mixed models in the analysis of mediated longitudinal data with binary outcomes

Emily A Blood, Debbie M Cheng

Open Access Research article

Forecasts of COPD mortality in Australia: 2006-2025

Bircan Erbas, Shahid Ullah, Rob J Hyndman, Michelle Scollo, Michael Abramson

Open Access Research article

Validation of the diabetes, hypertension and hyperlipidemia (DHL) knowledge instrument in Malaysia

Pauline SM Lai, Siew Siang Chua, Ching Hooi Tan, Siew Pheng Chan

Open Access Technical advance

Analysis of human immune responses in quasi-experimental settings: tutorial in biostatistics

Rajiv Sarkar, Sitara S Ajjampur, Honorine D Ward, Gagandeep Kang, Elena N Naumova

Open Access Research article

Bias and imprecision in posture percentile variables estimated from short exposure samples

Svend Erik Mathiassen, Jens Wahlström, Mikael Forsman

Open Access Technical advance

Measuring sidewalk distances using Google Earth

Ian Janssen, Andrei Rosu

Open Access Research article

Validation of activity questionnaires in patients with cystic fibrosis by accelerometry and cycle ergometry

Katharina C Ruf, Sonja Fehn, Michèle Bachmann, Alexander Moeller, Kristina Roth, Susi Kriemler, Helge Hebestreit

Open Access Research article

Effect of misclassification of antiretroviral treatment status on the prevalence of transmitted HIV-1 drug resistance

Hannah Castro, Deenan Pillay, Caroline Sabin, David T Dunn

Open Access Research article

Quality of life of Chinese urban community residents: a psychometric study of the mainland Chinese version of the WHOQOL-BREF

Ping Xia, Ningxiu Li, Kit-Tai Hau, Chaojie Liu, Yubo Lu

Open Access Research article

Childhood body mass index trajectories: modeling, characterizing, pairwise correlations and socio-demographic predictors of trajectory characteristics

Xiaozhong Wen, Ken Kleinman, Matthew W Gillman, Sheryl L Rifas-Shiman, Elsie M Taveras

Open Access Research article

Multiple imputation for estimating hazard ratios and predictive abilities in case-cohort surveys

Helena Marti, Laure Carcaillon, Michel Chavance

Open Access Research article

Comparison of uniaxial and triaxial accelerometry in the assessment of physical activity among adolescents under free-living conditions: the HELENA study

Jérémy Vanhelst, Laurent Béghin, Alain Duhamel, Patrick Bergman, Michael Sjöström, Frédéric Gottrand

Open Access Research article

Method for appraising model validity of randomised controlled trials of homeopathic treatment: multi-rater concordance study

Robert T Mathie, Helmut Roniger, Michel Van Wassenhoven, Joyce Frye, Jennifer Jacobs, Menachem Oberbaum, Marie-France Bordet, Chaturbhuja Nayak, Gilles Chaufferin, John A Ives, Flávio Dantas, Peter Fisher

Open Access Correspondence

The selection of search sources influences the findings of a systematic review of people’s views: a case study in public health

Claire Stansfield, Josephine Kavanagh, Rebecca Rees, Alan Gomersall, James Thomas

Open Access Research article

Definitions and methods of measuring and reporting on injurious falls in randomised controlled fall prevention trials: a systematic review

Michael Schwenk, Andreas Lauenroth, Christian Stock, Raquel Rodriguez Moreno, Peter Oster, Gretl McHugh, Chris Todd, Klaus Hauer

Open Access Research article

Individual patient data meta-analysis of survival data using Poisson regression models

Michael J Crowther, Richard D Riley, Jan A Staessen, Jiguang Wang, Francois Gueyffier, Paul C Lambert

Open Access Research article

Multiple imputation of missing covariates with non-linear effects and interactions: an evaluation of statistical methods

Shaun R Seaman, Jonathan W Bartlett, Ian R White

Open Access Research article

Analysis of decisions made in meta-analyses of depression screening and the risk of confirmation bias: A case study

Felicity A Goodyear-Smith, Mieke L van Driel, Bruce Arroll, Chris Del Mar

Open Access Research article

Validating self-reported strokes in a longitudinal UK cohort study (Whitehall II): Extracting information from hospital medical records versus the Hospital Episode Statistics database

Annie Britton, Beverly Milne, Therese Butler, Adelaida Sanchez-Galvez, Martin Shipley, Anthony Rudd, Charles DA Wolfe, Ajay Bhalla, Eric J Brunner

Open Access Research article

Validation of colorectal cancer surgery data from administrative data sources

Xue Li, Charlotte King, Christopher deGara, Jonathon White, Marcy Winget

Open Access Research article

Assessment of performance of survival prediction models for cancer prognosis

Hung-Chia Chen, Ralph L Kodell, Kuang Fu Cheng, James J Chen

Open Access Research article

A review of the reporting and handling of missing data in cohort studies with repeated assessment of exposure measures

Amalia Karahalios, Laura Baglietto, John B Carlin, Dallas R English, Julie A Simpson

Open Access Research article

Individual participant data meta-analysis of prognostic factor studies: state of the art?

Ghada Abo-Zaid, Willi Sauerbrei, Richard D Riley

Open Access Research article

Enhanced reporting of deaths among Aboriginal and Torres Strait Islander peoples using linked administrative health datasets

Lee K Taylor, Jason Bentley, Jennifer Hunt, Richard Madden, Sybille McKeown, Peter Brandt, Deborah Baker

Open Access Research article

On summary measure analysis of linear trend repeated measures data: performance comparison with two competing methods

Mehrdad Vossoughi, SMT Ayatollahi, Mina Towhidi, Farzaneh Ketabchi

Open Access Research article

Using record linkage to monitor equity and variation in screening programmes

Dermot O’Reilly, Heather Kinnear, Michael Rosato, Adrian Mairs, Clare Hall

Open Access Research article

Quality of DNA extracted from saliva samples collected with the Oragene™ DNA self-collection kit

Ana P Nunes, Isabel O Oliveira, Betânia R Santos, Cristini Millech, Liziane P Silva, David A González, Pedro C Hallal, Ana M B Menezes, Cora L Araújo, Fernando C Barros

Open Access Correspondence

The quality of the evidence base for clinical pathway effectiveness: Room for improvement in the design of evaluation trials

Thomas Rotter, Leigh Kinsman, Erica James, Andreas Machotta, Ewout W Steyerberg

Open Access Research article

Improving response rate and quality of survey data with a scratch lottery ticket incentive

Frank Olsen, Birgit Abelsen, Jan Abel Olsen

Open Access Correspondence

Brokered dialogue: A new research method for controversial health and social issues

Janet A Parsons, James V Lavery

Open Access Research article

Development and psychometric properties of the health-risk behavior inventory for Chinese adolescents

Mengcheng Wang, Jinyao Yi, Lin Cai, Muli Hu, Xiongzhao Zhu, Shuqiao Yao, Randy P Auerbach

Open Access Research article

Lost productivity due to premature mortality in developed and emerging countries: an application to smoking cessation

Joseph Menzin, Jeno P Marton, Jordan A Menzin, Richard J Willke, Rebecca M Woodward, Victoria Federico

Open Access Correspondence

Analyzing repeated data collected by mobile phones and frequent text messages. An example of Low back pain measured weekly for 18 weeks

Iben Axén, Lennart Bodin, Alice Kongsted, Niels Wedderkopp, Irene Jensen, Gunnar Bergström

Open Access Research article

Transformations of summary statistics as input in meta-analysis for linear dose-response models on a logarithmic scale: a methodology developed within EURRECA

Olga W Souverein, Carla Dullemeijer, Pieter van `t Veer, Hilko van der Voet

Open Access Research article

Data collection costs in industrial environments for three occupational posture exposure assessment methods

Catherine Trask, Svend Erik Mathiassen, Jens Wahlström, Marina Heiden, Mahmoud Rezagholi

Open Access Technical advance

Translation equations to compare ActiGraph GT3X and Actical accelerometers activity counts

Leon Straker, Amity Campbell

Open Access Research article

Validating and updating a risk model for pneumonia – a case study

Ulrike Held, Daniel Sabanes Bové, Johann Steurer, Leonhard Held

Open Access Research article

Predicting waist circumference from body mass index

Samuel R Bozeman, David C Hoaglin, Tanya M Burton, Chris L Pashos, Rami H Ben-Joseph, Christopher S Hollenbeak

Open Access Research article

To test or not to test: Preliminary assessment of normality when comparing two independent samples

Justine Rochon, Matthias Gondan, Meinhard Kieser

Open Access Research article

Refining developmental coordination disorder subtyping with multivariate statistical methods

Christophe Lalanne, Bruno Falissard, Bernard Golse, Laurence Vaivre-Douret

Open Access Research article

Including mixed methods research in systematic reviews: Examples from qualitative syntheses in TB and malaria control

Salla Atkins, Annika Launiala, Alexander Kagaha, Helen Smith

Open Access Correspondence

Data preparation techniques for a perinatal psychiatric study based on linked data

Fenglian Xu, Lisa Hilder, Marie-Paule Austin, Elizabeth A Sullivan

Open Access Research article

Evaluating current automatic de-identification methods with Veteran’s health administration clinical documents

Oscar Ferrández, Brett R South, Shuying Shen, F Jeffrey Friedlin, Matthew H Samore, Stéphane M Meystre

Open Access Research article

What inference for two-stage phase II trials?

Raphaël Porcher, Kristell Desseaux

Open Access Research article

Assessing measurement invariance of familism and parental respect across race/ethnicity in adolescents

Jeremy NV Miles, Regina A Shih, Joan S Tucker, Annie Zhou, Elizabeth J D’Amico

Open Access Research article

Choice of observational study design impacts on measurement of antipsychotic risks in the elderly: a systematic review

Nicole Pratt, Elizabeth E Roughead, Amy Salter, Philip Ryan

Open Access Research article

Selecting a comparison group for 5-year oral and pharyngeal cancer survivors: Two methods

Henrietta L Logan, Scott L Tomar, Myron Chang, Glenn E Turner, William M Mendenhall, Charles E Riggs Jr

Open Access Correspondence

From theory to 'measurement' in complex interventions: Methodological lessons from the development of an e-health normalisation instrument

Tracy L Finch, Frances S Mair, Catherine O’Donnell, Elizabeth Murray, Carl R May

Open Access Research article

Using two on-going HIV studies to obtain clinical data from before, during and after pregnancy for HIV-positive women

Susie E Huntington, Loveleen K Bansi, Claire Thorne, Jane Anderson, Marie-Louise Newell, Graham P Taylor, Deenan Pillay, Teresa Hill, Pat A Tookey, Caroline A Sabin

Open Access Study protocol

What is the most appropriate knowledge synthesis method to conduct a review? Protocol for a scoping review

Monika Kastner, Andrea C Tricco, Charlene Soobiah, Erin Lillie, Laure Perrier, Tanya Horsley, Vivian Welch, Elise Cogo, Jesmin Antony, Sharon E Straus

Open Access Correspondence

An evaluation of the quality of statistical design and analysis of published medical research: results from a systematic survey of general orthopaedic journals

Nick R Parsons, Charlotte L Price, Richard Hiskens, Juul Achten, Matthew L Costa

Open Access Research article

The feasibility of cell phone based electronic diaries for STI/HIV research

Devon J Hensel, James D Fortenberry, Jaroslaw Harezlak, Dorothy Craig

Open Access Research article

Who does not participate in a follow-up postal study? a survey of infertile couples treated by in vitro fertilization

Penelope Troude, Estelle Bailly, Juliette Guibert, Jean Bouyer, Elise de La Rochebrochard

Open Access Technical advance

Estimating and validating disability-adjusted life years at the global level: a methodological framework for cancer

Isabelle Soerjomataram, Joannie Lortet-Tieulent, Jacques Ferlay, David Forman, Colin Mathers, D Maxwell Parkin, Freddie Bray

Open Access Research article

Adjusting for under-identification of Aboriginal and/or Torres Strait Islander births in time series produced from birth records: Using record linkage of survey data and administrative data sources

David Lawrence, Daniel Christensen, Francis Mitrou, Glenn Draper, Geoff Davis, Sybille McKeown, Daniel McAullay, Glenn Pearson, Stephen R Zubrick

Open Access Research article

Weight change in control group participants in behavioural weight loss interventions: a systematic review and meta-regression study

Lauren Waters, Alexis St George, Tien Chey, Adrian Bauman

Open Access Study protocol

Melanocortin-1 receptor, skin cancer and phenotypic characteristics (M-SKIP) project: study design and methods for pooling results of genetic epidemiological studies

Sara Raimondi, Sara Gandini, Maria Concetta Fargnoli, Vincenzo Bagnardi, Patrick Maisonneuve, Claudia Specchia, Rajiv Kumar, Eduardo Nagore, Jiali Han, Johan Hansson, Peter A Kanetsky, Paola Ghiorzo, Nelleke A Gruis, Terry Dwyer, Leigh Blizzard, Ricardo Fernandez-de-Misa, Wojciech Branicki, Tadeusz Debniak, Niels Morling, Maria Teresa Landi, Giuseppe Palmieri, Gloria Ribas, Alexander Stratigos, Lynn Cornelius, Tomonori Motokawa, Sumiko Anno, Per Helsing, Terence H Wong, Philippe Autier, José C García-Borrón, Julian Little, Julia Newton-Bishop, Francesco Sera, Fan Liu, Manfred Kayser, Tamar Nijsten

Open Access Research article

Determinants of non- response to a second assessment of lifestyle factors and body weight in the EPIC-PANACEA study

Anne M May, Lotte E Adema, Dora Romaguera, Anne-Claire Vergnaud, Antonio Agudo, Ulf Ekelund, Annika Steffen, Philippos Orfanos, Nadia Slimani, Sabina Rinaldi, Traci Mouw, Sabine Rohrmann, Silke Hermann, Heiner Boeing, Manuela M Bergmann, Marianne Uhre Jakobsen, Kim Overvad, Nicholas J Wareham, Carlos Gonzalez, Anne Tjonneland, Jytte Halkjaer, Timothy J Key, Elizabeth A Spencer, Veronica Hellstrom, Jonas Manjer, Bo Hedblad, Eiliv Lund, Tonje Braaten, Françoise Clavel-Chapelon, Marie-Christine Boutron-Ruault, Laudina Rodríguez, Maria J Sánchez, Miren Dorronsoro, Aurelio Barricarte, Jose Maria Huerta, Androniki Naska, Antonia Trichopoulou, Domenico Palli, Valeria Pala, Teresa Norat, Amalia Mattiello, Rosario Tumino, Daphne van der A, H Bas Bueno-de-Mesquita, Elio Riboli, Petra HM Peeters

Open Access Research article

Constructing episodes of inpatient care: data infrastructure for population-based research

Randy Fransoo, Marina Yogendran, Kendiss Olafson, Clare Ramsey, Kari-Lynne McGowan, Allan Garland

Open Access Research article

Do health care institutions value research? A mixed methods study of barriers and facilitators to methodological rigor in pediatric randomized trials

Michele P Hamm, Shannon D Scott, Terry P Klassen, David Moher, Lisa Hartling

Open Access Research article

Designing cost-efficient randomized trials by using flexible recruitment strategies

Menggang Yu, Jingwei Wu, Debra S Burns, Janet S Carpenter

Open Access Research article

Construct validity of 2 measures to assess reasons for antipsychotic discontinuation and continuation from patients’ and clinicians’ perspectives in a clinical trial

Douglas Faries, Haya Ascher-Svanum, Glenn Phillips, Allen W Nyhuis, Tomoko Sugihara, Virginia Stauffer, Bruce J Kinon

Open Access Research article

Predictors of two forms of attrition in a longitudinal health study involving ageing participants: An analysis based on the Whitehall II study

Gill Mein, Suneeta Johal, Robert L Grant, Clive Seale, Richard Ashcroft, Anthea Tinker

Open Access Research article

An exploration of the missing data mechanism in an Internet based smoking cessation trial

Dan Jackson, Dan Mason, Ian R White, Stephen Sutton

Open Access Research article

30-day in-hospital mortality after acute myocardial infarction in Tuscany (Italy): An observational study using hospital discharge data

Chiara Seghieri, Stefano Mimmi, Jacopo Lenzi, Maria Pia Fantini

Open Access Research article

Evaluation of the Propensity score methods for estimating marginal odds ratios in case of small sample size

Romain Pirracchio, Matthieu Resche-Rigon, Sylvie Chevret

Open Access Research article

Tracking type specific prevalence of human Papillomavirus in cervical pre-cancer: a novel sampling strategy

Edward K Waters, John Kaldor, Andrew J Hamilton, Anthony MA Smith, David J Philp, Basil Donovan, David G Regan

Open Access Technical advance

Statistical adjustment of genotyping error in a case–control study of childhood leukaemia

Matthew N Cooper, Nicholas H de Klerk, Kathryn R Greenop, Sarra E Jamieson, Denise Anderson, Frank M van Bockxmeer, Bruce K Armstrong, Elizabeth Milne

Open Access Research article

The HUNT study: participation is associated with survival and depends on socioeconomic status, diseases and symptoms

Arnulf Langhammer, Steinar Krokstad, Pål Romundstad, Jon Heggland, Jostein Holmen

Open Access Research article

Vascular disease in women: comparison of diagnoses in hospital episode statistics and general practice records in England

F Lucy Wright, Jane Green, Dexter Canoy, Benjamin J Cairns, Angela Balkwill, Valerie Beral

Open Access Research article

An optimal search filter for retrieving systematic reviews and meta-analyses

Edwin Lee, Maureen Dobbins, Kara DeCorby, Lyndsey McRae, Daiva Tirilis, Heather Husson

Open Access Research article

Simulation evaluation of statistical properties of methods for indirect and mixed treatment comparisons

Fujian Song, Allan Clark, Max O Bachmann, Jim Maas

Open Access Research article

Systematic review of methods used in meta-analyses where a primary outcome is an adverse or unintended event

Fiona C Warren, Keith R Abrams, Su Golder, Alex J Sutton

Open Access Research article

Partitioning of excess mortality in population-based cancer patient survival studies using flexible parametric survival models

Sandra Eloranta, Paul C Lambert, Therese ML Andersson, Kamila Czene, Per Hall, Magnus Björkholm, Paul W Dickman

Open Access Research article

Bayesian structured additive regression modeling of epidemic data: application to cholera

Frank B Osei, Alfred A Duker, Alfred Stein

Open Access Research article

Two assessments to evaluate imagery ability: translation, test-retest reliability and concurrent validity of the German KVIQ and Imaprax

Corina Schuster, Anina Lussi, Brigitte Wirth, Thierry Ettlin

Open Access Study protocol

Learning from failure - rationale and design for a study about discontinuation of randomized trials (DISCO study)

Benjamin Kasenda, Erik B von Elm, John You, Anette Blümle, Yuki Tomonaga, Ramon Saccilotto, Alain Amstutz, Theresa Bengough, Jörg Meerpohl, Mihaela Stegert, Kari A O Tikkinen, Ignacio Neumann, Alonso Carrasco-Labra, Markus Faulhaber, Sohail Mulla, Dominik Mertz, Elie A Akl, Dirk Bassler, Jason W Busse, Ignacio Ferreira-González, Francois Lamontagne, Alain Nordmann, Rachel Rosenthal, Stefan Schandelmaier, Xin Sun, Per O Vandvik, Bradley C Johnston, Martin A Walter, Bernard Burnand, Matthias Schwenkglenks, Heiner C Bucher, Gordon H Guyatt, Matthias Briel

Open Access Research article

Longitudinal beta regression models for analyzing health-related quality of life scores over time

Matthias Hunger, Angela Döring, Rolf Holle

Open Access Research article

Reliability, validity and administrative burden of the community reintegration of injured service members computer adaptive test (CRIS-CAT)”

Linda Resnik, Matthew Borgia, Pensheng Ni, Paul A Pirraglia, Alan Jette

Open Access Correspondence

Methods for the Drug Effectiveness Review Project

Marian S McDonagh, Daniel E Jonas, Gerald Gartlehner, Alison Little, Kim Peterson, Susan Carson, Mark Gibson, Mark Helfand

Open Access Research article

The effect of changes in intraocular pressure on the risk of primary open-angle glaucoma in patients with ocular hypertension: an application of latent class analysis

Feng Gao, J Philip Miller, Stefano Miglior, Julia A Beiser, Valter Torri, Michael A Kass, Mae O Gordon

Open Access Research article

Investigating linkage rates among probabilistically linked birth and hospitalization records

Jason P Bentley, Jane B Ford, Lee K Taylor, Katie A Irvine, Christine L Roberts

Open Access Research article

Illness Mapping: a time and cost effective method to estimate healthcare data needed to establish community-based health insurance

Erika Binnendijk, Meenakshi Gautham, Ruth Koren, David M Dror

Open Access Research article

Internet trials: participant experiences and perspectives

Erin Mathieu, Alexandra Barratt, Stacy M Carter, Gro Jamtvedt

Open Access Correspondence

Reporting guidelines for modelling studies

Carol Bennett, Douglas G Manuel

Open Access Research article

Self-reported adherence with the use of a device in a clinical trial as validated by electronic monitors: the VIBES study

Brianne A Jeffrey, Marian T Hannan, Emily K Quinn, Sheryl Zimmerman, Bruce A Barton, Clinton T Rubin, Douglas P Kiel

Open Access Research article

Supplementing claims data with outpatient laboratory test results to improve confounding adjustment in effectiveness studies of lipid-lowering treatments

Sebastian Schneeweiss, Jeremy A Rassen, Robert J Glynn, Jessica Myers, Gregory W Daniel, Joseph Singer, Daniel H Solomon, SeoYoung Kim, Kenneth J Rothman, Jun Liu, Jerry Avorn

Open Access Research article

Spatio-temporal Rasch analysis of quality of life outcomes in the French general population. Measurement invariance and group comparisons

Jean-Benoit Hardouin, Etienne Audureau, Alain Leplège, Joël Coste

Open Access Research article

Intraclass reliability for assessing how well Taiwan constrained hospital-provided medical services using statistical process control chart techniques

Tsair-Wei Chien, Ming-Ting Chou, Wen-Chung Wang, Li-Shu Tsai, Weir-Sen Lin

Open Access Research article

Comparison of approaches to estimate confidence intervals of post-test probabilities of diagnostic test results in a nested case-control study

Bas van Zaane, Yvonne Vergouwe, A Rogier T Donders, Karel GM Moons

Open Access Research article

Attrition in longitudinal randomized controlled trials: home visits make a difference

Janey C Peterson, Paul A Pirraglia, Martin T Wells, Mary E Charlson

Open Access Research article

Practical considerations for sensitivity analysis after multiple imputation applied to epidemiological studies with incomplete data

Vanina Héraud-Bousquet, Christine Larsen, James Carpenter, Jean-Claude Desenclos, Yann Le Strat

Open Access Research article

Bureaucracy stifles medical research in Britain: a tale of three trials

Helen Snooks, Hayley Hutchings, Anne Seagrove, Sarah Stewart-Brown, John Williams, Ian Russell

Open Access Research article

Adjustment for reporting bias in network meta-analysis of antidepressant trials

Ludovic Trinquart, Gilles Chatellier, Philippe Ravaud

Open Access Research article

What does a modified-Fibonacci dose-escalation actually correspond to?

Nicolas Penel, Andrew Kramar

Open Access Research article

Fitting parametric random effects models in very large data sets with application to VHA national data

Mulugeta Gebregziabher, Leonard Egede, Gregory E Gilbert, Kelly Hunt, Paul J Nietert, Patrick Mauldin

Open Access Research article

The implications of biomarker evidence for systematic reviews

Miew Keen Choong, Guy Tsafnat

Open Access Research article

Search strategies to identify reports on “off-label” drug use in EMBASE

Bita Mesgarpour, Markus Müller, Harald Herkner

Open Access Technical advance

Incorporating published univariable associations in diagnostic and prognostic modeling

Thomas P A Debray, Hendrik Koffijberg, Difei Lu, Yvonne Vergouwe, Ewout W Steyerberg, Karel G M Moons

Open Access Research article

Using a generalized additive model with autoregressive terms to study the effects of daily temperature on mortality

Lei Yang, Guoyou Qin, Naiqing Zhao, Chunfang Wang, Guixiang Song

Open Access Review

From concepts, theory, and evidence of heterogeneity of treatment effects to methodological approaches: a primer

Richard J Willke, Zhiyuan Zheng, Prasun Subedi, Rikard Althin, C Daniel Mullins

Open Access Research article

The effect of two lottery-style incentives on response rates to postal questionnaires in a prospective cohort study in preschool children at high risk of asthma: a randomized trial

Lonneke B van der Mark, Karina E van Wonderen, Jacob Mohrs, Patrick JE Bindels, Milo A Puhan, Gerben ter Riet

Open Access Research article

Estimation methods with ordered exposure subject to measurement error and missingness in semi-ecological design

Hyang-Mi Kim, Chul Gyu Park, Martie van Tongeren, Igor Burstyn

Open Access Correspondence

Enhancing transparency in reporting the synthesis of qualitative research: ENTREQ

Allison Tong, Kate Flemming, Elizabeth McInnes, Sandy Oliver, Jonathan Craig

Open Access Research article

Systematic reviews need to consider applicability to disadvantaged populations: inter-rater agreement for a health equity plausibility algorithm

Vivian Welch, Kevin Brand, Elizabeth Kristjansson, Janet Smylie, George Wells, Peter Tugwell

Open Access Correspondence

Designing assisted living technologies ‘in the wild’: preliminary experiences with cultural probe methodology

Joseph Wherton, Paul Sugarhood, Rob Procter, Mark Rouncefield, Guy Dewsbury, Sue Hinder, Trisha Greenhalgh

Open Access Correspondence

Why do you think you should be the author on this manuscript? Analysis of open-ended responses of authors in a general medical journal

Mario Malički, Ana Jerončić, Matko Marušić, Ana Marušić

Open Access Research article

Bias-corrected estimator for intraclass correlation coefficient in the balanced one-way random effects model

Eshetu G Atenafu, Jemila S Hamid, Teresa To, Andrew R Willan, Brian M Feldman, Joseph Beyene

Open Access Correspondence

Intervention dose estimation in health promotion programmes: a framework and a tool. Application to the diet and physical activity promotion PRALIMAP trial

Karine Legrand, Emilie Bonsergent, Clotilde Latarche, Fabienne Empereur, Jean François Collin, Edith Lecomte, Evelyne Aptel, Nathalie Thilly, Serge Briançon

Open Access Research article

Measuring the accuracy of self-reported height and weight in a community-based sample of young people

Anna L Bowring, Anna Peeters, Rosanne Freak-Poli, Megan SC Lim, Maelenn Gouillou, Margaret Hellard

Open Access Research article

Investigating clinical heterogeneity in systematic reviews: a methodologic review of guidance in the literature

Joel J Gagnier, David Moher, Heather Boon, Joseph Beyene, Claire Bombardier

Open Access Research article

Validity of verbal autopsy method to determine causes of death among adults in the urban setting of Ethiopia

Awoke Misganaw, Damen Haile Mariam, Tekebash Araya, Aderaw Aneneh

Open Access Research article

The Manchester Color Wheel: validation in secondary school pupils

Helen R Carruthers, Linda Magee, Susan Osborne, Linda K Hall, Peter J Whorwell

Open Access Research article

Maternal recall of breastfeeding duration twenty years after delivery

Siv Tone Natland, Lene Frost Andersen, Tom Ivar Lund Nilsen, Siri Forsmo, Geir W Jacobsen

Open Access Research article

Combining directed acyclic graphs and the change-in-estimate procedure as a novel approach to adjustment-variable selection in epidemiology

David Evans, Basile Chaix, Thierry Lobbedez, Christian Verger, Antoine Flahault

Open Access Research article

Bayesian methods in clinical trials: a Bayesian analysis of ECOG trials E1684 and E1690

Joseph G Ibrahim, Ming-Hui Chen, Haitao Chu

Open Access Correspondence

A framework for organizing and selecting quantitative approaches for benefit-harm assessment

Milo A Puhan, Sonal Singh, Carlos O Weiss, Ravi Varadhan, Cynthia M Boyd

Open Access Research article

Comparing marginal structural models to standard methods for estimating treatment effects of antihypertensive combination therapy

Tobias Gerhard, Joseph AC Delaney, Rhonda M Cooper-DeHoff, Jonathan Shuster, Babette A Brumback, Julie A Johnson, Carl J Pepine, Almut G Winterstein

Open Access Research article

The use of continuous data versus binary data in MTC models: A case study in rheumatoid arthritis

Susanne Schmitz, Roisin Adams, Cathal Walsh

Open Access Research article

Benefits of extensive recruitment effort persist during follow-ups and are consistent across age group and survey method. The TRAILS study

Esther Nederhof, Frederike Jörg, Dennis Raven, René Veenstra, Frank C Verhulst, Johan Ormel, Albertine J Oldehinkel

Open Access Research article

Social interactions of eating behaviour among high school students: a cellular automata approach

Vahid Dabbaghian, Vijay K Mago, Tiankuang Wu, Charles Fritz, Azadeh Alimadad

Open Access Research article

An item response theory evaluation of three depression assessment instruments in a clinical sample

Mats Adler, Jerker Hetta, Göran Isacsson, Ulf Brodin

Open Access Research article

A cross-sectional and semantic investigation of self-rated health in the northern Sweden MONICA-study

Göran Waller, Peder Thalén, Urban Janlert, Katarina Hamberg, Annika Forssén