Reporting of conflicts of interest in oral presentations at medical conferences : a delegate-based prospective observational study

© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.Peer reviewedPublisher PD

Should adults take vitamin D supplements to prevent disease?

Funding: Funded by the Health Research Council (HRC) of New Zealand. The authors are independent of the HRC. The HRC had no role in study design, the collection, analysis, and interpretation of data,Peer reviewe

Responses to concerns raised about publications don’t address the concerns raised

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Assessment of research waste part 1 : an exemplar from examining study design, surrogate and clinical endpoints in studies of calcium intake and vitamin D supplementation

Funding: No specific funding was received for this study. MB receives salary support from the Health Research Council of New Zealand. The Health Services Research Unit is funded by the Chief Scientist Office of the Scottish Government Health and Social Care Directorates. The funders had no role in the study design; collection, analysis, and interpretation of the data; writing of the report; and in the decision to submit the paper for publication. Availability of data and materials: All data generated or analysed during this study are included in this published article and its supplementary information file.Peer reviewedPublisher PD

Effects of vitamin D supplementation on musculoskeletal health : a systematic review, meta-analysis, and trial sequential analysis

Funding support from the Health Research Council of New Zealand. The Health Services Research Unit is funded by the Chief Scientist Office of the Scottish Government Health and Social Care Directorates. The HRC had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.Peer reviewedPostprin

Prevalence of biochemical osteomalacia in adults undergoing vitamin D testing

Acknowledgements We thank Josh Newmark, NHS Grampian, for discussions on cut-offs for renal function tests. Funding: This study was funded by the Health Research Council of New Zealand.Peer reviewedPostprin

Calcium supplements with or without vitamin D and risk of cardiovascular events : reanalysis of the Women's Health Initiative limited access dataset and meta-analysis

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Statistical Techniques to Assess Publication Integrity in Groups of Randomised Trials : A Narrative Review

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Assessment of research waste part 2 : wrong study populations- an exemplar of baseline vitamin D status of participants in trials of vitamin D supplementation

Acknowledgements: We thank the following for providing further information about their trial or survey: Paul Atyeo, Australian Bureau of Statistics, Australia; Anne Looker, Centers for Disease Control and Prevention, USA; Briony Romero and Rachel Neale, Queensland Institute of Medical Research, Berghofer Medical Research Institute, Australia. We also thank David Cooper, HSRU, University of Aberdeen, UK, for statistical advice; Shaun Treweek, HSRU, and Hilde Stromme, Norwegian Knowledge Centre for the Health Services, Oslo, for help locating a Norwegian publication. Funding: No specific funding was received for this study. MB receives salary support from the Health Research Council of New Zealand. The Health Services Research Unit is funded by the Chief Scientist Office of the Scottish Government Health and Social Care Directorates. The funders had no role in the study design; collection, analysis, and interpretation of the data; writing of the report; and in the decision to submit the paper for publication.Peer reviewedPublisher PD

Identical summary statistics were uncommon in randomized trials and cohort studies

Acknowledgments We thank Dorit Naot and Susannah O'Sullivan for providing the animal raw data used in the simulations. Funding This research received no specific funding. MB is a recipient of an HRC Clinical Practitioners Fellowship. The Health Services Research Unit is funded by the Chief Scientist Office of the Scottish Government Health and Social Care Directorates. The authors are independent of the HRC. The HRC had no role in design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.Peer reviewedPostprin