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  1. Evidence suggests that differences exist in physical activity (PA) participation among Culturally and Linguistically Diverse (CALD) children and adolescents. It is possible that these differences could be infl...

    Authors: Claudia Strugnell, Andre Renzaho, Kate Ridley and Cate Burns
    Citation: BMC Medical Research Methodology 2011 11:122
  2. Infection of the CNS is considered to be the major cause of encephalitis and more than 100 different pathogens have been recognized as causative agents. Despite being identified worldwide as an important publi...

    Authors: Jemila S Hamid, Christopher Meaney, Natasha S Crowcroft, Julia Granerod and Joseph Beyene
    Citation: BMC Medical Research Methodology 2011 11:120
  3. Multi-dimensional behavioral rating scales like the CBCL and YSR are available for diagnosing psychosocial maladjustment in adolescents, but these are unsuitable for large-scale usage since they are time-consu...

    Authors: Henry S Lynn and Bill Y Tsang
    Citation: BMC Medical Research Methodology 2011 11:119
  4. Many nursing and health related research studies have continuous outcome measures that are inherently non-normal in distribution. The Box-Cox transformation provides a powerful tool for developing a parsimonio...

    Authors: Qingjiang Hou, Jonathan D Mahnken, Byron J Gajewski and Nancy Dunton
    Citation: BMC Medical Research Methodology 2011 11:118
  5. In the last decade several authors have reviewed the features of pilot and feasibility studies and advised on the issues that should be addressed within them. We extend this literature by examining published p...

    Authors: Milensu Shanyinde, Ruth M Pickering and Mark Weatherall
    Citation: BMC Medical Research Methodology 2011 11:117
  6. This study took place to enable the measurement of the effects on mental health of a psychosocial intervention in Rwanda. It aimed to establish the capacities of the Self-Reporting Questionnaire (SRQ-20) to sc...

    Authors: Willem F Scholte, Femke Verduin, Anouk van Lammeren, Theoneste Rutayisire and Astrid M Kamperman
    Citation: BMC Medical Research Methodology 2011 11:116
  7. There is growing interest in theory-driven, qualitative and mixed-method approaches to systematic review as an alternative to (or to extend and supplement) conventional Cochrane-style reviews. These approaches...

    Authors: Trisha Greenhalgh, Geoff Wong, Gill Westhorp and Ray Pawson
    Citation: BMC Medical Research Methodology 2011 11:115
  8. Based on the general approach of locus of control, health locus of control (HLOC) concerns control-beliefs due to illness, sickness and health. HLOC research results provide an improved understanding of health...

    Authors: Christiane Otto, Gallus Bischof, Hans-Jürgen Rumpf, Christian Meyer, Ulfert Hapke and Ulrich John
    Citation: BMC Medical Research Methodology 2011 11:114
  9. There is a lack of validated instruments for quantifying feeding behavior among parents of older children and adolescents. The Comprehensive Feeding Practices Questionnaire (CFPQ) is a self-report measure to a...

    Authors: Elisabeth L Melbye, Torvald Øgaard and Nina C Øverby
    Citation: BMC Medical Research Methodology 2011 11:113
  10. Measures that reflect patients' assessment of their health are of increasing importance as outcome measures in randomised controlled trials. The methodological approach used in the pre-validation development o...

    Authors: Maria E Prior, Jemaima Che Hamzah, Jillian J Francis, Craig R Ramsay, Mayret M Castillo, Susan E Campbell, Augusto Azuara-Blanco and Jennifer M Burr
    Citation: BMC Medical Research Methodology 2011 11:112
  11. Questionnaires used by health services to identify children with psychosocial problems are often rather short. The psychometric properties of such short questionnaires are mostly less than needed for an accura...

    Authors: Antonius GC Vogels, Gert W Jacobusse and Symen A Reijneveld
    Citation: BMC Medical Research Methodology 2011 11:111
  12. It was still unclear whether the methodological reporting quality of randomized controlled trials (RCTs) in major hepato-gastroenterology journals improved after the Consolidated Standards of Reporting Trials ...

    Authors: Ji-Lin Wang, Tian-Tian Sun, Yan-Wei Lin, Rong Lu and Jing-Yuan Fang
    Citation: BMC Medical Research Methodology 2011 11:110
  13. Depression is a common co-morbid health problem in patients with diabetes that is underrecognised. Current international guidelines recommend screening for depression in patients with diabetes. Yet, few depres...

    Authors: Vicky Lehmann, Ceylan Makine, Çagatay Karşıdağ, Pinar Kadıoğlu, Kubilay Karşıdağ and François Pouwer
    Citation: BMC Medical Research Methodology 2011 11:109
  14. Since individual-level income is difficult to collect, investigators often rely on group-based measures derived from census data. No study has assessed the use of residential property values as an indicator of...

    Authors: Thomas Matukala Nkosi, Marie-Elise Parent, Jack Siemiatycki, Javier Pintos and Marie-Claude Rousseau
    Citation: BMC Medical Research Methodology 2011 11:108
  15. Organizational context has the potential to influence the use of new knowledge. However, despite advances in understanding the theoretical base of organizational context, its measurement has not been adequatel...

    Authors: Carole A Estabrooks, Janet E Squires, Leslie A Hayduk, Greta G Cummings and Peter G Norton
    Citation: BMC Medical Research Methodology 2011 11:107
  16. To determine the suitability of using the self-controlled case series design to assess improvements in health outcomes using the effectiveness of beta blockers for heart failure in reducing hospitalisations as...

    Authors: Emmae N Ramsay, Elizabeth E Roughead, Ben Ewald, Nicole L Pratt and Philip Ryan
    Citation: BMC Medical Research Methodology 2011 11:106
  17. Nowadays, more and more clinical scales consisting in responses given by the patients to some items (Patient Reported Outcomes - PRO), are validated with models based on Item Response Theory, and more specific...

    Authors: Jean-Benoit Hardouin, Ronán Conroy and Véronique Sébille
    Citation: BMC Medical Research Methodology 2011 11:105
  18. The term 'inequities' refers to avoidable differences rooted in injustice. This review examined whether or not, and how, quantitative studies identifying inequalities in risk factors and health service utiliza...

    Authors: Heather L Greenwood, Nancy Edwards, Amandah Hoogbruin, Eulalia K Kahwa, Okeyo N Odhiambo and Jack A Buong
    Citation: BMC Medical Research Methodology 2011 11:104
  19. Associations between measures of subjective health and mortality risk have previously been shown. We assessed the impact and comparative predictive performance of a multi-biomarker panel on this association.

    Authors: Robin Haring, You-Shan Feng, Jörn Moock, Henry Völzke, Marcus Dörr, Matthias Nauck, Henri Wallaschofski and Thomas Kohlmann
    Citation: BMC Medical Research Methodology 2011 11:103
  20. Cluster randomised controlled trials (CRCTs) are frequently used in health service evaluation. Assuming an average cluster size, required sample sizes are readily computed for both binary and continuous outcom...

    Authors: Karla Hemming, Alan J Girling, Alice J Sitch, Jennifer Marsh and Richard J Lilford
    Citation: BMC Medical Research Methodology 2011 11:102

    The Erratum to this article has been published in BMC Medical Research Methodology 2017 17:8

  21. The case study approach allows in-depth, multi-faceted explorations of complex issues in their real-life settings. The value of the case study approach is well recognised in the fields of business, law and pol...

    Authors: Sarah Crowe, Kathrin Cresswell, Ann Robertson, Guro Huby, Anthony Avery and Aziz Sheikh
    Citation: BMC Medical Research Methodology 2011 11:100
  22. Longitudinal studies often employ complex sample designs to optimize sample size, over-representing population groups of interest. The effect of sample design on parameter estimates is quite often ignored, par...

    Authors: Cibele C César and Marilia S Carvalho
    Citation: BMC Medical Research Methodology 2011 11:99
  23. The Community Reintegration of Service Members (CRIS) is a new measure of community reintegration developed to measure veteran's participation in life roles. It consists of three sub-scales: Extent of Particip...

    Authors: Linda J Resnik, Melissa A Clark and Matthew Borgia
    Citation: BMC Medical Research Methodology 2011 11:98
  24. How overall physical activity relates to specific activities and how reported activity changes over time may influence interpretation of observed associations between physical activity and health. We examine t...

    Authors: Miranda EG Armstrong, Benjamin J Cairns, Jane Green, Gillian K Reeves and Valerie Beral
    Citation: BMC Medical Research Methodology 2011 11:97
  25. When the mortality among a cancer patient group returns to the same level as in the general population, that is, the patients no longer experience excess mortality, the patients still alive are considered "sta...

    Authors: Therese ML Andersson, Paul W Dickman, Sandra Eloranta and Paul C Lambert
    Citation: BMC Medical Research Methodology 2011 11:96
  26. Response rate (RR) alone may be insensitive to drug activity in phase II trials. Early progressive disease (EPD) could improve sensitivity as well as increase stage I stopping rates. This study compares the pr...

    Authors: John R Goffin, Greg R Pond and Dongsheng Tu
    Citation: BMC Medical Research Methodology 2011 11:95
  27. Estimating the required sample size and statistical power for a study is an integral part of study design. For standard designs, power equations provide an efficient solution to the problem, but they are unava...

    Authors: Benjamin F Arnold, Daniel R Hogan, John M Colford Jr and Alan E Hubbard
    Citation: BMC Medical Research Methodology 2011 11:94
  28. The Edinburgh Postnatal Depression Scale (EPDS) has been proposed as a one-dimensional instrument and used as a single 10-item scale. This might be considered questionable since repeated psychometric studies h...

    Authors: Michael E Reichenheim, Claudia L Moraes, Alessandra SD Oliveira and Gustavo Lobato
    Citation: BMC Medical Research Methodology 2011 11:93
  29. Evidence mapping describes the quantity, design and characteristics of research in broad topic areas, in contrast to systematic reviews, which usually address narrowly-focused research questions. The breadth o...

    Authors: Peter Bragge, Ornella Clavisi, Tari Turner, Emma Tavender, Alex Collie and Russell L Gruen
    Citation: BMC Medical Research Methodology 2011 11:92
  30. The anti-TNF inhibitor, etanercept is administered as a once or twice weekly subcutaneous injection for the treatment of rheumatoid arthritis, psoriasis, ankylosing spondylitis, psoriatic arthritis and juvenil...

    Authors: Alan G Wade, Gordon M Crawford, Neil Pumford, Volker Koscielny, Susan Maycock and Alex McConnachie
    Citation: BMC Medical Research Methodology 2011 11:91
  31. Investigating the size and mechanisms of the placebo response in clinical trials have relied on experimental procedures that simulate the double-blind randomized placebo-controlled design. However, as the conv...

    Authors: Paul Enck, Sibylle Klosterhalfen and Stephan Zipfel
    Citation: BMC Medical Research Methodology 2011 11:90
  32. Sample size calculations require effect size estimations. Sometimes, effect size estimations and standard deviation may not be readily available, particularly if efficacy is unknown because the intervention is...

    Authors: Helen M Kirkby, Sue Wilson, Melanie Calvert and Heather Draper
    Citation: BMC Medical Research Methodology 2011 11:89
  33. Many studies have investigated racial/ethnic disparities in medication non-adherence in patients with type 2 diabetes using common measures such as medication possession ratio (MPR) or gaps between refills. Al...

    Authors: Mulugeta Gebregziabher, Cheryl P Lynch, Martina Mueller, Gregory E Gilbert, Carrae Echols, Yumin Zhao and Leonard E Egede
    Citation: BMC Medical Research Methodology 2011 11:88
  34. Several disease-specific questionnaires to measure pain and disability in patients with neck pain have been translated. However, a simple translation of the original version doesn't guarantee similar measureme...

    Authors: Jasper M Schellingerhout, Martijn W Heymans, Arianne P Verhagen, Henrica C de Vet, Bart W Koes and Caroline B Terwee
    Citation: BMC Medical Research Methodology 2011 11:87
  35. Competing risks methodology allows for an event-specific analysis of the single components of composite time-to-event endpoints. A key feature of competing risks is that there are as many hazards as there are ...

    Authors: Arthur Allignol, Martin Schumacher, Christoph Wanner, Christiane Drechsler and Jan Beyersmann
    Citation: BMC Medical Research Methodology 2011 11:86
  36. We determined the diagnostic accuracy of the Edinburgh Claudication Questionnaire (ECQ) in 1st generation Black African-Caribbean UK migrants as previous diagnostic questionnaires have been found to be less accur...

    Authors: Philip C Bennett, Gregory YH Lip, Stanley Silverman, Andrew D Blann and Paramjit S Gill
    Citation: BMC Medical Research Methodology 2011 11:85
  37. Gastric Emptying Scintigraphy (GES) at intervals over 4 hours after a standardized radio-labeled meal is commonly regarded as the gold standard for diagnosing gastroparesis. The objectives of this study were: ...

    Authors: Qingjiang Hou, Zhiyue Lin, Reginald Dusing, Byron J Gajewski, Richard W McCallum and Matthew S Mayo
    Citation: BMC Medical Research Methodology 2011 11:84
  38. The Charlson comorbidity index is often used to control for confounding in research based on medical databases. There are few studies of the accuracy of the codes obtained from these databases.

    Authors: Sandra K Thygesen, Christian F Christiansen, Steffen Christensen, Timothy L Lash and Henrik T Sørensen
    Citation: BMC Medical Research Methodology 2011 11:83
  39. We investigate whether the changing environment caused by rapid economic growth yielded differential effects for successive Taiwanese generations on 8 components of metabolic syndrome (MetS): body mass index (...

    Authors: Yu-Kang Tu, Kuo-Liong Chien, Victoria Burley and Mark S Gilthorpe
    Citation: BMC Medical Research Methodology 2011 11:82
  40. Maximizing response rates is critically important in order to provide the most generalizable and unbiased research results. High response rates reduce the chance of respondents being systematically different f...

    Authors: Joan M Griffin, Alisha Baines Simon, Erin Hulbert, John Stevenson, Joseph P Grill, Siamak Noorbaloochi and Melissa R Partin
    Citation: BMC Medical Research Methodology 2011 11:81
  41. In the randomized study of interferon beta-1b (IFN beta-1b) for multiple sclerosis (MS), it has usually been evaluated the simple annual relapse rate as the study endpoint. This study aimed to investigate the ...

    Authors: Makiko N Mieno, Takuhiro Yamaguchi and Yasuo Ohashi
    Citation: BMC Medical Research Methodology 2011 11:80
  42. Qualitative studies of participants' experiences in randomised clinical trials (RCTs) suggest that the psychosocial context of treatment in RCTs may be quite different to the psychosocial context of treatment ...

    Authors: Fiona Barlow, Clare Scott, Beverly Coghlan, Philippa Lee, Peter White, George T Lewith and Felicity L Bishop
    Citation: BMC Medical Research Methodology 2011 11:79
  43. In medical research, one common competing risks situation is the study of different types of events, such as disease recurrence and death. We focused on that situation but considered death under two aspects: "...

    Authors: Aurélien Belot, Laurent Remontet, Guy Launoy, Valérie Jooste and Roch Giorgi
    Citation: BMC Medical Research Methodology 2011 11:78
  44. Logistic random effects models are a popular tool to analyze multilevel also called hierarchical data with a binary or ordinal outcome. Here, we aim to compare different statistical software implementations of...

    Authors: Baoyue Li, Hester F Lingsma, Ewout W Steyerberg and Emmanuel Lesaffre
    Citation: BMC Medical Research Methodology 2011 11:77
  45. Energy-based surgical scalpels are designed to efficiently transect and seal blood vessels using thermal energy to promote protein denaturation and coagulation. Assessment and design improvement of ultrasonic ...

    Authors: Wiebke S Diestelkamp, Carissa M Krane and Margaret F Pinnell
    Citation: BMC Medical Research Methodology 2011 11:75
  46. Although previous studies using non- elderly groups have assessed the factorial invariance of the Center for Epidemiological Studies Depression Scale (CES-D) across different groups with the same social-cultur...

    Authors: Baoshan Zhang, Marjolein Fokkema, Pim Cuijpers, Juan Li, Niels Smits and Aartjan Beekman
    Citation: BMC Medical Research Methodology 2011 11:74

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