Ausgabe 1/2009
Inhalt (87 Artikel)
Spontaneous improvement in randomised clinical trials: meta-analysis of three-armed trials comparing no treatment, placebo and active intervention
Lasse Theis Krogsbøll, Asbjørn Hróbjartsson, Peter C Gøtzsche
Assessment of regression-based methods to adjust for publication bias through a comprehensive simulation study
Santiago G Moreno, Alex J Sutton, AE Ades, Tom D Stanley, Keith R Abrams, Jaime L Peters, Nicola J Cooper
Quality assessment of diagnostic before-after studies: development of methodology in the context of a systematic review
Catherine A Meads, Clare F Davenport
Bias in trials comparing paired continuous tests can cause researchers to choose the wrong screening modality
Deborah H Glueck, Molly M Lamb, Colin I O'Donnell, Brandy M Ringham, John T Brinton, Keith E Muller, John M Lewin, Todd A Alonzo, Etta D Pisano
Measuring agreement of administrative data with chart data using prevalence unadjusted and adjusted kappa
Guanmin Chen, Peter Faris, Brenda Hemmelgarn, Robin L Walker, Hude Quan
A multivariate hierarchical Bayesian approach to measuring agreement in repeated measurement method comparison studies
Philip J Schluter
An illustration of and programs estimating attributable fractions in large scale surveys considering multiple risk factors
Simon Rückinger, Rüdiger von Kries, André Michael Toschke
Investigating the impact of extraneous distractions on consultations in general practice: Lessons learned
Moyez Jiwa, Robert McKinley, Carolyn O'Shea, Hayley Arnet, Katrina Spilsbury, Marthe Smith
A semiparametric Bayesian proportional hazards model for interval censored data with frailty effects
Volkmar Henschel, Jutta Engel, Dieter Hölzel, Ulrich Mansmann
Overstating the evidence – double counting in meta-analysis and related problems
Stephen J Senn
Using ordinal logistic regression to evaluate the performance of laser-Doppler predictions of burn-healing time
Rose D Baker, Christian Weinand, James C Jeng, Henk Hoeksema, Stan Monstrey, Sarah A Pape, Robert Spence, David Wilson
Analysis of neonatal clinical trials with twin births
Michele L Shaffer, Allen R Kunselman, Kristi L Watterberg
An inclusive approach to raising standards in general practice: working with a 'community of practice' in Western Australia
Moyez Jiwa, Kathleen Deas, Jackie Ross, Tim Shaw, Helen Wilcox, Katrina Spilsbury
Recruitment barriers in a randomized controlled trial from the physicians' perspective – A postal survey
Anne Spaar, Martin Frey, Alexander Turk, Werner Karrer, Milo A Puhan
Online focus groups as a tool to collect data in hard-to-include populations: examples from paediatric oncology
Kiek Tates, Marieke Zwaanswijk, Roel Otten, Sandra van Dulmen, Peter M Hoogerbrugge, Willem A Kamps, Jozien M Bensing
Building blocks for meta-synthesis: data integration tables for summarising, mapping, and synthesising evidence on interventions for communicating with health consumers
Rebecca E Ryan, Caroline A Kaufman, Sophie J Hill
The assessment of recalled parental rearing behavior and its relationship to life satisfaction and interpersonal problems: a general population study
Katja Petrowski, Hendrik Berth, Silke Schmidt, Jörg Schumacher, Andreas Hinz, Elmar Brähler
Current use of medical eponyms – a need for global uniformity in scientific publications
Narayan Jana, Sukumar Barik, Nalini Arora
Determinants of subject visit participation in a prospective cohort study of HTLV infection
Deborah A DeVita, Mary C White, Xin Zhao, Zhanna Kaidarova, Edward L Murphy
Methodology of a diabetes prevention translational research project utilizing a community-academic partnership for implementation in an underserved Latino community
Philip A Merriam, Trinidad L Tellez, Milagros C Rosal, Barbara C Olendzki, Yunsheng Ma, Sherry L Pagoto, Ira S Ockene
Calculation of NNTs in RCTs with time-to-event outcomes: A literature review
Mandy Hildebrandt, Elke Vervölgyi, Ralf Bender
Individual patient data meta-analysis of diagnostic and prognostic studies in obstetrics, gynaecology and reproductive medicine
Kimiko A Broeze, Brent C Opmeer, Lucas M Bachmann, Frank J Broekmans, Patrick MM Bossuyt, Sjors FPJ Coppus, Neil P Johnson, Khalid S Khan, Gerben ter Riet, Fulco van der Veen, Madelon van Wely, Ben WJ Mol
Does direction of results of abstracts submitted to scientific conferences on drug addiction predict full publication?
Simona Vecchi, Valeria Belleudi, Laura Amato, Marina Davoli, Carlo A Perucci
Quality of reporting internal and external validity data from randomized controlled trials evaluating stents for percutaneous coronary intervention
Morgane Ethgen, lsabelle Boutron, Philippe Gabriel Steg, Carine Roy, Philippe Ravaud
Locating sex-specific evidence on clinical questions in MEDLINE: a search filter for use on OvidSP™
Clara J Moerman, Rikie Deurenberg, Joke A Haafkens
Arab nations lagging behind other Middle Eastern countries in biomedical research: a comparative study
Hani TS Benamer, Omran Bakoush
Recruitment to a physical activity intervention study in women at increased risk of breast cancer
Larissa A Korde, Amy Micheli, Ashley W Smith, David Venzon, Sheila A Prindiville, Bart Drinkard, Nancy Sebring, Marcia D Smith, Jo Anne Zujewski, Jennifer Eng-Wong
Assessing quality of life in a randomized clinical trial: Correcting for missing data
Nina Gunnes, Taral G Seierstad, Steinar Aamdal, Paal F Brunsvig, Anne-Birgitte Jacobsen, Stein Sundstrøm, Odd O Aalen
Evidence synthesis as the key to more coherent and efficient research
Alexander J Sutton, Nicola J Cooper, David R Jones
Bayesian versus frequentist statistical inference for investigating a one-off cancer cluster reported to a health department
Michael D Coory, Rachael A Wills, Adrian G Barnett
A labelled discrete choice experiment adds realism to the choices presented: preferences for surveillance tests for Barrett esophagus
Michelle E Kruijshaar, Marie-Louise Essink-Bot, Bas Donkers, Caspar WN Looman, Peter D Siersema, Ewout W Steyerberg
Visualising disease progression on multiple variables with vector plots and path plots
Stanley E Lazic, Sarah L Mason, Andrew W Michell, Roger A Barker
Assessing the impact of biomedical research in academic institutions of disparate sizes
Vana Sypsa, Angelos Hatzakis
Extending an evidence hierarchy to include topics other than treatment: revising the Australian 'levels of evidence'
Tracy Merlin, Adele Weston, Rebecca Tooher
Estimating the number needed to treat from continuous outcomes in randomised controlled trials: methodological challenges and worked example using data from the UK Back Pain Exercise and Manipulation (BEAM) trial
Robert Froud, Sandra Eldridge, Ranjit Lall, Martin Underwood
How well do adolescents recall use of mobile telephones? Results of a validation study
Imo Inyang, Geza Benke, Joseph Morrissey, Ray McKenzie, Michael Abramson
Comparison of Bayesian and classical methods in the analysis of cluster randomized controlled trials with a binary outcome: The Community Hypertension Assessment Trial (CHAT)
Jinhui Ma, Lehana Thabane, Janusz Kaczorowski, Larry Chambers, Lisa Dolovich, Tina Karwalajtys, Cheryl Levitt
KIDMAP, a web based system for gathering patients' feedback on their doctors
Tsair-Wei Chien, Weng-Chung Wang, Sho-Be Lin, Ching-Yih Lin, How-Ran Guo, Shih-Bin Su
Design effect in multicenter studies: gain or loss of power?
Emilie Vierron, Bruno Giraudeau
Identifying strategies to maximise recruitment and retention of practices and patients in a multicentre randomised controlled trial of an intervention to optimise secondary prevention for coronary heart disease in primary care
Claire S Leathem, Margaret E Cupples, Mary C Byrne, Mary O'Malley, Ailish Houlihan, Andrew W Murphy, Susan M Smith
Are we drawing the right conclusions from randomised placebo-controlled trials? A post-hoc analysis of data from a randomised controlled trial
M Diana van Die, Kerry M Bone, Henry G Burger, Helena J Teede
Determining the date of diagnosis – is it a simple matter? The impact of different approaches to dating diagnosis on estimates of delayed care for ovarian cancer in UK primary care
A Rosemary Tate, Alexander GR Martin, Tarita Murray-Thomas, Sarah R Anderson, Jackie A Cassell
Timing of surgical antibiotic prophylaxis administration: Complexities of analysis
Carrie Cartmill, Lorelei Lingard, Glenn Regehr, Sherry Espin, John Bohnen, Ross Baker, Lorne Rotstein
Interim data monitoring to enroll higher-risk participants in HIV prevention trials
Vera Halpern, Orikomaba Obunge, Folasade Ogunsola, Sakiru Otusanya, John Umo-Otong, Chin-Hua Wang, Neha Mehta
Effect of questionnaire structure on recall of drug utilization in a population of university students
Helena Gama, Sofia Correia, Nuno Lunet
Strategies for achieving a high response rate in a home interview survey
Kirsty Kiezebrink, Iain K Crombie, Linda Irvine, Vivien Swanson, Kevin Power, Wendy L Wrieden, Peter W Slane
Interviewee Transcript Review: assessing the impact on qualitative research
Victoria Hagens, Mark J Dobrow, Roger Chafe
Record linkage to obtain birth outcomes for the evaluation of screening biomarkers in pregnancy: a feasibility study
Samantha J Lain, Charles S Algert, Vitomir Tasevski, Jonathan M Morris, Christine L Roberts
Fitting multilevel models in complex survey data with design weights: Recommendations
Adam C Carle
Data enhancement for co-morbidity measurement among patients referred for sleep diagnostic testing: an observational study
Paul E Ronksley, Willis H Tsai, Hude Quan, Peter Faris, Brenda R Hemmelgarn
Effectiveness and cost of recruitment strategies for a community-based randomised controlled trial among rainwater drinkers
Shelly Rodrigo, Martha Sinclair, David Cunliffe, Karin Leder
Qualitative description – the poor cousin of health research?
Mette Asbjoern Neergaard, Frede Olesen, Rikke Sand Andersen, Jens Sondergaard
Incorporating natural variation into IVF clinic league tables: The Expected Rank
Hester F Lingsma, Marinus JC Eijkemans, Ewout W Steyerberg
Deploying a clinical innovation in the context of actor-patient consultations in general practice: A prelude to a formal clinical trial
Moyez Jiwa, Robert K McKinley, Katrina Spilsbury, Hayley Arnet, Marthe Smith
A meta-analysis of the placebo response in antimuscarinic drug trials for overactive bladder
Soyon Lee, Bimal Malhotra, Dana Creanga, Martin Carlsson, Paul Glue
Bias in odds ratios by logistic regression modelling and sample size
Szilard Nemes, Junmei Miao Jonasson, Anna Genell, Gunnar Steineck
Combining estimates of interest in prognostic modelling studies after multiple imputation: current practice and guidelines
Andrea Marshall, Douglas G Altman, Roger L Holder, Patrick Royston
Reliability and validity of the Activity Questionnaire for Adults and Adolescents (AQuAA)
Mai JM Chinapaw, Sander M Slootmaker, Albertine J Schuit, Mariska van Zuidam, Willem van Mechelen
Methods for the synthesis of qualitative research: a critical review
Elaine Barnett-Page, James Thomas
Exploration of the beliefs and experiences of Aboriginal people with cancer in Western Australia: a methodology to acknowledge cultural difference and build understanding
Shaouli Shahid, Dawn Bessarab, Peter Howat, Sandra C Thompson
Recruitment rates and reasons for community physicians' non-participation in an interdisciplinary intervention study on leg ulceration
Oliver R Herber, Wilfried Schnepp, Monika A Rieger
Optimal strategy to identify incidence of diagnostic of diabetes using administrative data
Shabnam Asghari, Josiane Courteau, André C Carpentier, Alain Vanasse
oA novel nonparametric approach for estimating cut-offs in continuous risk indicators with application to diabetes epidemiology
Jens Klotsche, Dietmar Ferger, Lars Pieper, Jürgen Rehm, Hans-Ulrich Wittchen
Determining relative importance of variables in developing and validating predictive models
Joseph Beyene, Eshetu G Atenafu, Jemila S Hamid, Teresa To, Lillian Sung
Strategies for improving patient recruitment to focus groups in primary care: a case study reflective paper using an analytical framework
Jane V Dyas, Tanefa Apekey, Michelle Tilling, A Niroshan Siriwardena
Estimation of colorectal adenoma recurrence with dependent censoring
Chiu-Hsieh Hsu, Qi Long, David S Alberts
New journal selection for quantitative survey of infectious disease research: application for Asian trend analysis
Hiromi Takahashi-Omoe, Katsuhiko Omoe, Nobuhiko Okabe
A multidisciplinary systematic literature review on frailty: Overview of the methodology used by the Canadian Initiative on Frailty and Aging
Sathya Karunananthan, Christina Wolfson, Howard Bergman, François Béland, David B Hogan
Comparing recruitment strategies in a study of acupuncture for chronic back pain
Karen J Sherman, Rene J Hawkes, Laura Ichikawa, Daniel C Cherkin, Richard A Deyo, Andrew L Avins, Partap S Khalsa
Evaluating the informatics for integrating biology and the bedside system for clinical research
Vikrant G Deshmukh, Stéphane M Meystre, Joyce A Mitchell
Clinical trial participant characteristics and saliva and DNA metrics
Denise M Nishita, Lisa M Jack, Mary McElroy, Jennifer B McClure, Julie Richards, Gary E Swan, Andrew W Bergen
Collecting household water usage data: telephone questionnaire or diary?
Joanne E O'Toole, Martha I Sinclair, Karin Leder
Multivariate random effects meta-analysis of diagnostic tests with multiple thresholds
Taye H Hamza, Lidia R Arends, Hans C van Houwelingen, Theo Stijnen
Computer-aided assessment of diagnostic images for epidemiological research
Alison G Abraham, Donald D Duncan, Stephen J Gange, Sheila West
Parasite threshold associated with clinical malaria in areas of different transmission intensities in north eastern Tanzania
Bruno P Mmbando, John P Lusingu, Lasse S Vestergaard, Martha M Lemnge, Thor G Theander, Thomas H Scheike
Blood spots as an alternative to whole blood collection and the effect of a small monetary incentive to increase participation in genetic association studies
Parveen Bhatti, Diane Kampa, Bruce H Alexander, Christopher McClure, Danny Ringer, Michele M Doody, Alice J Sigurdson
International Active Surveillance Study of Women Taking Oral Contraceptives (INAS-OC Study)
Juergen C Dinger, Kristina Bardenheuer, Anita Assmann
Trials and tribulations of recruiting 2,000 older women onto a clinical trial investigating falls and fractures: Vital D study
Kerrie M Sanders, Amanda L Stuart, Elizabeth N Merriman, Meaghan L Read, Mark A Kotowicz, Doris Young, Roderick Taylor, Ian Blair-Holt, Alistair G Mander, Geoffrey C Nicholson
Extent of publication bias in different categories of research cohorts: a meta-analysis of empirical studies
Fujian Song, Sheetal Parekh-Bhurke, Lee Hooper, Yoon K Loke, Jon J Ryder, Alex J Sutton, Caroline B Hing, Ian Harvey
Meta-Analyst: software for meta-analysis of binary, continuous and diagnostic data
Byron C Wallace, Christopher H Schmid, Joseph Lau, Thomas A Trikalinos
Design and methods for a randomized clinical trial of a diabetes self-management intervention for low-Income Latinos: Latinos en Control
Milagros C Rosal, Mary Jo White, Angela Restrepo, Barbara Olendzki, Jeffrey Scavron, Elise Sinagra, Ira S Ockene, Michael Thompson, Stephenie C Lemon, Lucy M Candib, George Reed
Structural issues affecting mixed methods studies in health research: a qualitative study
Alicia O'Cathain, Jon Nicholl, Elizabeth Murphy
Stratification of the severity of critically ill patients with classification trees
Javier Trujillano, Mariona Badia, Luis Serviá, Jaume March, Angel Rodriguez-Pozo
Modeling of longitudinal polytomous outcome from complex survey data - application to investigate an association between mental distress and non-malignant respiratory diseases
Punam Pahwa, Chandima P Karunanayake
Optimal classifier selection and negative bias in error rate estimation: an empirical study on high-dimensional prediction
Anne-Laure Boulesteix, Carolin Strobl
Estimating required information size by quantifying diversity in random-effects model meta-analyses
Jørn Wetterslev, Kristian Thorlund, Jesper Brok, Christian Gluud
Design and methods for testing a simple dietary message to improve weight loss and dietary quality
Philip A Merriam, Yunsheng Ma, Barbara C Olendzki, Kristin L Schneider, Wenjun Li, Ira S Ockene, Sherry L Pagoto