Statistics & Research Methods

Relationship of anthropometric measurements to thyroid nodules in a Chinese population
Weimin Xu, Zexin Chen, Na Li, Hui Liu, Liangliang Huo, Yangmei Huang, Xingyi Jin, Jin Deng, Sujuan Zhu, Shanchun Zhang, Yunxian Yu

BMJ Open Dec 2015, 5 (12) e008452; DOI: 10.1136/bmjopen-2015-008452
Protocol for a mixed-methods longitudinal study to identify factors influencing return to work in the over 50s participating in the UK Work Programme: Supporting Older People into Employment (SOPIE)
Judith Brown, Joanne Neary, Srinivasa Vittal Katikireddi, Hilary Thomson, Ronald W McQuaid, Alastair H Leyland, John Frank, Luke Jeavons, Paul de Pellette, Sibel Kiran, Ewan B Macdonald

BMJ Open Dec 2015, 5 (12) e010525; DOI: 10.1136/bmjopen-2015-010525
Survival analysis of time to uptake of modern contraceptives among sexually active women of reproductive age in Nigeria
Adeniyi Francis Fagbamigbe, Ayo Stephen Adebowale, ImranOludare Morhason-Bello

BMJ Open Dec 2015, 5 (12) e008371; DOI: 10.1136/bmjopen-2015-008371
Estimating the probability of demonstrating vaccine efficacy in the declining Ebola epidemic: a Bayesian modelling approach
Anton Camacho, Rosalind M Eggo, Sebastian Funk, Conall H Watson, Adam J Kucharski, W John Edmunds

BMJ Open Dec 2015, 5 (12) e009346; DOI: 10.1136/bmjopen-2015-009346
Price elasticity of tobacco products among economic classes in India, 2011–2012
Sakthivel Selvaraj, Swati Srivastava, Anup Karan

BMJ Open Dec 2015, 5 (12) e008180; DOI: 10.1136/bmjopen-2015-008180
Evaluating the effectiveness of a peer-led education intervention to improve the patient safety attitudes of junior pharmacy students: a cross-sectional study using a latent growth curve modelling approach
Ramesh L Walpola, Romano A Fois, Andrew J McLachlan, Timothy F Chen

BMJ Open Dec 2015, 5 (12) e010045; DOI: 10.1136/bmjopen-2015-010045
Factoring in weather variation to capture the influence of urban design and built environment on globally recommended levels of moderate to vigorous physical activity in children
Tarun Reddy Katapally, Daniel Rainham, Nazeem Muhajarine

BMJ Open Nov 2015, 5 (11) e009045; DOI: 10.1136/bmjopen-2015-009045
Identification of antithrombotic drugs related to total joint replacement using anonymised free-text notes: a search strategy in the Clinical Practice Research Datalink
Johannes TH Nielen, Bart J F van den Bemt, Annelies Boonen, Pieter C Dagnelie, Pieter J Emans, Nicole Veldhorst, Arief Lalmohamed, Tjeerd-Pieter van Staa, Frank de Vries

BMJ Open Nov 2015, 5 (11) e009017; DOI: 10.1136/bmjopen-2015-009017
Use of surrogate outcomes in US FDA drug approvals, 2003–2012: a survey
Tsung Yu, Yea-Jen Hsu, Kevin M Fain, Cynthia M Boyd, Janet T Holbrook, Milo A Puhan

BMJ Open Nov 2015, 5 (11) e007960; DOI: 10.1136/bmjopen-2015-007960
Methods for estimating causal relationships of adverse events with dietary supplements
Kazuki Ide, Hiroshi Yamada, Mamoru Kitagawa, Yohei Kawasaki, Yuma Buno, Kumi Matsushita, Masayuki Kaji, Kazuko Fujimoto, Masako Waki, Mitsuyoshi Nakashima, Keizo Umegaki

BMJ Open Nov 2015, 5 (11) e009038; DOI: 10.1136/bmjopen-2015-009038

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