Table 4.

Association Between Serum Vitamin D Levels and Stress Fractures Among College Athletes, 2012 to 2018^a

	Stress Fractures	Stress Reactions and Stress Fractures	Unadjusted	Sensitivity	Adjusted Sensitivity
Male athletes (n = 497)	8 (2)	31 (6)	0.98 (0.92-1.03)	0.94 (0.90-0.99)	0.90 (0.84-0.97)
Female athletes (n = 305)	13 (4)	41 (13)	0.99 (0.94-1.04)	1.01 (0.96-1.06)	0.91 (0.82-1.00)

^aData are presented as n (%) or odds ratio (95% CI). For male athletes, adjusted for race and body mass index (BMI); for female athletes, adjusted for race, BMI, and oral contraceptive use. Sensitivity results are for stress reactions and stress fractures.