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Total vitamin A (μg RE/day) and risk of any fracture. D, diet; F, females; HR, hazard ratio; IWHS, Iowa Women's Health Study; M, males; PC, prospective cohort; Q, quantiles; RR, relative risk; RS, Rotterdam Study; S, supplements; WHIOS, Women's Health Initiative Observational Study. Study duration represents either mean, median or maximum follow‐up. 1Intake adjusted for energy before categorisation; 2 Information was obtained from the study authors.
