TABLE 4.

Association of Age, Menarcheal Status, and Type of Activity With a History of Stress Fracture Among the Girls in GUTS

OR, Adjusted for Age (95% CI)OR, Adjusted for All Covariates in Model (95% CI)
Age1.27 (1.11–1.45)
Postmenarcheal in 19980.61 (0.40–0.95)0.64 (0.41–1.01)
Nonimpact activity, h/wk1.03 (0.98–1.08)1.02 (0.97–1.07)
Medium-impact activity, h/wk1.00 (0.93–1.09)0.00 (0.92–1.08)
Running, h/wk1.14 (1.06–1.21)1.13 (1.05–1.22)
Basketball, h/wk1.01 (0.91–1.11)1.02 (0.92–1.12)
Soccer, h/wk1.03 (0.94–1.14)1.04 (0.94–1.15)
Cheerleading or gymnastics, h/wk1.11 (1.03–1.21)1.10 (1.01–1.21)
Tennis, h/wk0.84 (0.62–1.14)0.83 (0.61–1.13)
Volleyball, h/wk1.05 (0.93–1.18)1.05 (0.94–1.18)
  • There were 135 cases among 4954 girls with complete data. The ORs were from a generalized estimating equation model that adjusted for the covariates listed in the table. Information on correlates came from the 1998 GUTS questionnaire.