Table 2 Association between Stress Fracture Incidence and Body Fat
Sex | Percentile | Body Fat Range (%) | n | Injury Incidence (cases/1000) | Logistic Regression Odds Ratio (95%CI) | p-value |
|---|---|---|---|---|---|---|
Men | 1–10 | < 8.90 | 47,545 | 23.7 | 1.27 (1.17–1.40) | < 0.01 |
11–20 | 8.90–10.62 | 47,603 | 18.2 | 0.98 (0.89–1.07) | 0.62 | |
21–30 | 10.63–12.08 | 47,382 | 16.6 | 0.87 (0.79–0.96) | 0.02 | |
31–40 | 12.09–13.51 | 47,706 | 16.3 | 0.90 (0.82–0.99) | < 0.01 | |
41–50 | 13.52–15.05 | 47,431 | 16.8 | 0.89 (0.81–0.98) | 0.03 | |
51–60 | 15.06–16.73 | 47,778 | 18.6 | 1.00 | Referent | |
61–70 | 16.74–18.60 | 47,579 | 20.0 | 1.07 (0.98–1.18) | 0.13 | |
71–80 | 18.61–20.61 | 47,525 | 20.4 | 1.10 (1.00–1.20) | 0.05 | |
81–90 | 20.62–23.52 | 47,605 | 21.1 | 1.14 (1.04–1.24) | < 0.01 | |
91–100 | ≥ 23.53 | 47,591 | 21.4 | 1.15 (1.05–1.26) | < 0.01 | |
Women | 1–10 | < 22.90 | 10,779 | 90.1 | 1.20 (1.09–1.32) | < 0.01 |
11–20 | 22.90–24.56 | 10,802 | 81.4 | 1.07 (0.97–1.18) | 0.18 | |
21–30 | 24.57–25.97 | 10,805 | 80.2 | 1.05 (0.95–1.16) | 0.32 | |
31–40 | 25.98–27.23 | 10,752 | 79.6 | 1.04 (0.95–1.16) | 0.38 | |
41–50 | 27.24–28.53 | 10,712 | 76.6 | 1.00 | Referent | |
51–60 | 28.54–29.55 | 10,827 | 81.0 | 1.06 (0.96–1.18) | 0.22 | |
61–70 | 29.56–30.78 | 10,842 | 80.8 | 1.06 (0.96–1.17) | 0.24 | |
71–80 | 30.79–32.21 | 10,788 | 72.8 | 0.95 (0.86–1.05) | 0.30 | |
81–90 | 32.22–34.20 | 10,793 | 77.3 | 1.01 (0.92–1.12) | 0.83 | |
91–100 | ≥ 34.21 | 10,806 | 79.2 | 1.04 (0.94–1.15) | 0.45 |