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  1. Retrospective research requires longitudinal data, and repositories derived from electronic health records (EHR) can be sources of such data. With Health Information Technology for Economic and Clinical Health...

    Authors: Vikrant G Deshmukh, N Brett Sower, Cheri Y Hunter and Joyce A Mitchell
    Citation: BMC Medical Research Methodology 2011 11:151
  2. Given the rising number of asthma cases and the increasing costs of health care, prevention may be the best cure. Decisions regarding the implementation of prevention programmes in general and choosing between...

    Authors: G Feljandro P Ramos, Sandra Kuiper, Edward Dompeling, Antoinette DI van Asselt, Wim JC de Grauw, J André Knottnerus, Onno CP van Schayck, Tjard RJ Schermer and Johan L Severens
    Citation: BMC Medical Research Methodology 2011 11:150
  3. Large-scale clinical trials with thousands of participants are often needed to evaluate the risk reductions of cardiac events and/or death. Many recent clinical trials have evaluated the incidences of cardiac ...

    Authors: Hiroshi Sawata and Kiichiro Tsutani
    Citation: BMC Medical Research Methodology 2011 11:148
  4. Computerized Clinical Records, which are incorporated in primary health care practice, have great potential for research. In order to use this information, data quality and reliability must be assessed to prev...

    Authors: Carmen de Burgos-Lunar, Miguel A Salinero-Fort, Juan Cárdenas-Valladolid, Sonia Soto-Díaz, Carmen Y Fuentes-Rodríguez, Juan C Abánades-Herranz and Isabel del Cura-González
    Citation: BMC Medical Research Methodology 2011 11:146
  5. Research on health-education programs requires longitudinal data. Loss to follow-up can lead to imprecision and bias, and complete loss to follow-up is particularly damaging. If that loss is predictable, then eff...

    Authors: MJ Park, Yoshihiko Yamazaki, Yuki Yonekura, Keiko Yukawa, Hirono Ishikawa, Takahiro Kiuchi and Joseph Green
    Citation: BMC Medical Research Methodology 2011 11:145
  6. Hospital length of stay (LOS) and time for a patient to reach clinical stability (TCS) have increasingly become important outcomes when investigating ways in which to combat Community Acquired Pneumonia (CAP)....

    Authors: Guy N Brock, Christopher Barnes, Julio A Ramirez and John Myers
    Citation: BMC Medical Research Methodology 2011 11:144
  7. Prediction rules for intracranial traumatic findings in patients with minor head injury are designed to reduce the use of computed tomography (CT) without missing patients at risk for complications. This study...

    Authors: Tjeerd van der Ploeg, Marion Smits, Diederik W Dippel, Myriam Hunink and Ewout W Steyerberg
    Citation: BMC Medical Research Methodology 2011 11:143
  8. A previous study has documented the reliability and validity of the Treatment Satisfaction with Medicines Questionnaire (SATMED-Q) in exploring patient satisfaction with medicines for chronic health conditions...

    Authors: Javier Rejas, Miguel A Ruiz, Antonio Pardo and Javier Soto
    Citation: BMC Medical Research Methodology 2011 11:142
  9. Physical activity patterns of a population remain mostly assessed by the questionnaires. However, few physical activity questionnaires have been validated in Asian populations. We previously utilized a combina...

    Authors: Ei Ei Khaing Nang, Susan Ayuko Gitau Ngunjiri, Yi Wu, Agus Salim, E Shyong Tai, Jeannette Lee and Rob M Van Dam
    Citation: BMC Medical Research Methodology 2011 11:141
  10. The current situation in the treatment of chronic myeloid leukaemia (CML) presents a new challenge for attempts to measure the therapeutic results, as the CML patients can experience multiple leukaemia-free pe...

    Authors: Tomáš Pavlík, Eva Janoušová, Zdeněk Pospíšil, Jan Mužík, Daniela Žáčková, Zdeněk Ráčil, Hana Klamová, Petr Cetkovský, Marek Trněný, Jiří Mayer and Ladislav Dušek
    Citation: BMC Medical Research Methodology 2011 11:140
  11. Mean costs and quality-adjusted-life-years are central to the cost-effectiveness of health technologies. They are often calculated from time to event curves such as for overall survival and progression-free su...

    Authors: Martin W Hoyle and William Henley
    Citation: BMC Medical Research Methodology 2011 11:139
  12. Leg edema is a common manifestation of various underlying pathologies. Reliable measurement tools are required to quantify edema and monitor therapeutic interventions. Aim of the present work was to investigat...

    Authors: Rolf P Engelberger, Claudia Blazek, Felix Amsler, Hong H Keo, Frédéric Baumann, Werner Blättler, Iris Baumgartner and Torsten Willenberg
    Citation: BMC Medical Research Methodology 2011 11:138
  13. Questionnaires are used extensively in medical and health care research and depend on validity and reliability. However, participants may differ in interest and awareness throughout long questionnaires, which ...

    Authors: Tore Wentzel-Larsen, Tone M Norekvål, Bjørg Ulvik, Ottar Nygård and Are H Pripp
    Citation: BMC Medical Research Methodology 2011 11:137
  14. The Millennium Cohort Study is a longitudinal cohort study designed in the late 1990s to evaluate how military service may affect long-term health. The purpose of this investigation was to examine characterist...

    Authors: Travis D Leleu, Isabel G Jacobson, Cynthia A LeardMann, Besa Smith, Peter W Foltz, Paul J Amoroso, Marcia A Derr, Margaret AK Ryan and Tyler C Smith
    Citation: BMC Medical Research Methodology 2011 11:136
  15. The Public Population Project in Genomics (P3G) is an organisation that aims to promote collaboration between researchers in the field of population-based genomics. The main objectives of P3G are to encourage col...

    Authors: Derrick A Bennett, Julian Little, Lindsey F Masson and Cosetta Minelli
    Citation: BMC Medical Research Methodology 2011 11:135
  16. The concept of resilience has captured the imagination of researchers and policy makers over the past two decades. However, despite the ever growing body of resilience research, there is a paucity of relevant,...

    Authors: Deirdre Gartland, Lyndal Bond, Craig A Olsson, Simone Buzwell and Susan M Sawyer
    Citation: BMC Medical Research Methodology 2011 11:134
  17. Analytic methods commonly used in epidemiology do not account for spatial correlation between observations. In regression analyses, omission of that autocorrelation can bias parameter estimates and yield incor...

    Authors: Mohammadreza Mohebbi, Rory Wolfe and Damien Jolley
    Citation: BMC Medical Research Methodology 2011 11:133
  18. The assessment of the causal effect of Intensive Care Unit (ICU) admission generally involves usual observational designs and thus requires controlling for confounding variables. Instrumental variable analysis...

    Authors: Romain Pirracchio, Charles Sprung, Didier Payen and Sylvie Chevret
    Citation: BMC Medical Research Methodology 2011 11:132
  19. Due to the high prevalence of depression, it is clinically relevant to improve the early identification and assessment of depressive episodes. The main objective of the present study was to examine the psychom...

    Authors: Margalida Gili, Juan V Luciano, Natalia Bauzá, Jaume Aguado, María J Serrano, Silvia Armengol and Miquel Roca
    Citation: BMC Medical Research Methodology 2011 11:131
  20. To assess the reporting of loss to follow-up (LTFU) information in articles on randomised controlled trials (RCTs) with time-to-event outcomes, and to assess whether discrepancies affect the validity of study ...

    Authors: Elke Vervölgyi, Mandy Kromp, Guido Skipka, Ralf Bender and Thomas Kaiser
    Citation: BMC Medical Research Methodology 2011 11:130
  21. Missing data on tumour stage information is a common problem in population-based cancer registries. Statistical analyses on the level of tumour stage may be biased, if no adequate method for handling of missin...

    Authors: Nora Eisemann, Annika Waldmann and Alexander Katalinic
    Citation: BMC Medical Research Methodology 2011 11:129
  22. Qualitative methodologies are increasingly popular in medical research. Grounded theory is the methodology most-often cited by authors of qualitative studies in medicine, but it has been suggested that many 'g...

    Authors: Alexandra Sbaraini, Stacy M Carter, R Wendell Evans and Anthony Blinkhorn
    Citation: BMC Medical Research Methodology 2011 11:128
  23. Previous investigations of test re-test reliability of the Mini-Mental State Examination (MMSE) have used correlations and statistics such as Cronbach's α to assess consistency. In practice, the MMSE is usuall...

    Authors: Riccardo E Marioni, Mark Chatfield, Carol Brayne and Fiona E Matthews
    Citation: BMC Medical Research Methodology 2011 11:127
  24. Surveys of doctors are an important data collection method in health services research. Ways to improve response rates, minimise survey response bias and item non-response, within a given budget, have not prev...

    Authors: Anthony Scott, Sung-Hee Jeon, Catherine M Joyce, John S Humphreys, Guyonne Kalb, Julia Witt and Anne Leahy
    Citation: BMC Medical Research Methodology 2011 11:126
  25. For the Low Vision Quality Of Life questionnaire (LVQOL) it is unknown whether the psychometric properties are satisfactory when an item response theory (IRT) perspective is considered. This study evaluates so...

    Authors: Ruth MA van Nispen, Dirk L Knol, Maaike Langelaan and Ger HMB van Rens
    Citation: BMC Medical Research Methodology 2011 11:125
  26. Including qualitative evidence on patients’ perspectives in systematic reviews of complex interventions may reveal reasons for variation in trial findings. This is particularly the case when the intervention i...

    Authors: Bridget Candy, Michael King, Louise Jones and Sandy Oliver
    Citation: BMC Medical Research Methodology 2011 11:124
  27. The aim of this study was to assess the content validity of a questionnaire to measure melanoma risk, knowledge and protective behaviour in a convenience sample of Scots and Australians. Australia has the high...

    Authors: Helen S Gillespie, Tony Watson, Jon D Emery, Amanda J Lee and Peter Murchie
    Citation: BMC Medical Research Methodology 2011 11:123
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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

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