Document Classification

Section Type: RESULTS

Text: Baseline characteristics associated (P < 0. 10) in multivariate analysis with stress fracture occurrence were one or more previous stress fractures (rate ratio [RR] [95 % confidence interval] = 6. 42 (1. 80-22. 87), lower whole-body bone mineral content (RR = 2. 70 [1. 26-5. 88] per 1-SD [293. 2 g] decrease), younger chronologic age (RR = 1. 42 [1. 05-1. 92] per 1-yr decrease), lower dietary calcium intake (RR = 1. 11 [0. 98-1. 25] per 100-mg decrease), and younger age at menarche (RR = 1. 92 [1. 15-3. 23] per 1-yr decrease).