Table 3.
Association of non-, medium, and high impact activity with incident stress fracture among females in GUTS
| Hazard ratio, adjusted for age and family history (95% CI) |
HR, adjusted for all covariates in modela (95% CI) |
|
|---|---|---|
| Age of menarche | 1.32 (1.11–1.57) | 1.34 (1.11–1.61) |
| Non-impact activityb (hrs/wk) | 0.98 (0.92–1.03) | 0.98 (0.93–1.04) |
| Medium impact activityc (hrs/wk) | 1.02 (0.95–1.09) | 1.01 (0.94–1.09) |
| High impact activityd (hrs/wk) | 1.09 (1.06–1.13) | 1.08 (1.05–1.12) |
a
Hazard ratios above are from Cox proportional hazards models adjusted for age, BMI, age, maternal history of low bone density or osteoporosis, and the covariates listed in the column. and the covariates listed in the table.
b
Sum of biking, swimming, skating, skateboarding, and lifting weights
c
Sum of baseball, dance/aerobics, hockey, and karate.
d
Sum of basketball, running, soccer, tennis, cheerleading, and volleyball.