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Corrections

Association between vitamin D supplementation and mortality: systematic review and meta-analysis

BMJ 2020; 370 doi: https://doi.org/10.1136/bmj.m2329 (Published 22 September 2020) Cite this as: BMJ 2020;370:m2329

In this research article by Zhang and colleagues (BMJ 2019;366:l4673, doi:10.1136/bmj.l4673, published 12 August 2019), two studies were included twice by mistake in the outcome of all cause mortality, which resulted in the double counting of some participants. After removing the duplicate studies, the effect estimates and the confidence intervals did not change. Furthermore, some studies’ cancer incidence data were erroneously attributed to cancer mortality, and the risk ratio and 95% confidence interval of cancer mortality changed from 0.84 (95% confidence interval 0.74 to 0.95) to 0.85 (0.74 to 0.97). An additional sensitivity analysis using trial duration rather than long term follow-up (supplementary eTable 7) did not change the article’s overall finding.

These corrections affect the article text, table 1, figures 1-3, and the supplementary material, and do not change the article’s results or interpretation. The authors apologise for the errors and regret any inconvenience caused.

The online article and PDF will be updated in due course.

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