|Outcome (3 mo to 3 y)||Number of RCTs (n)||Weighted event rates||RRR (95% CI)||NNT (CI)|
|*RCTs = randomised controlled trials. Other abbreviations defined in glossary; weighted event rates, RRR, NNT, and CI calculated from data in article using a random-effects model.|
|Participants who had ⩾1 fall||5 (1237)||30%||37%||19% (6 to 31)||15 (9 to 52)|
Review: prophylactic use of vitamin D reduces falls in older people
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