Table 2.

Comparison of BMD, BSA, and BMD/BSA between groups.

Variables	Group 1 (triathletes) (n = 19)	Group 2 (nonactive) (n = 19)	p-value	Effect Size (d)	CI (95%)	Power (1-β)
Absolute BMD (g/cm2)	1.17 ± 0.05	1.24 ± 0.08	0.006	1.05	1.0–1.1	0.77
BSA (m2)	1.61 ± 0.10	1.79 ± 0.13	< 0.001	1.55	1.3–1.9	0.94
BMD/BSA	0.73 ± 0.06	0.69 ± 0.04	0.03	0.78	0.6–0.9	0.72
BMC (kg)	2.49 ± 0.24	2.70 ± 0.42	0.05	0.61	0.4–0.9	0.58

Data are presented as mean ± standard deviation. BMD: bone mineral density; BSA: body surface area; BMC: bone mineral content; CI: confidence interval.