Table 1.
Characteristics of the Study Population (n = 49)
| Mean ± SD, n (%) | |
|---|---|
| Age (years) | 23.5 ± 3.4 |
| Body mass index (kg/m2) | 22.43 ± 2.96 |
| Sex | |
| Male | 27 (55.1%) |
| Female | 22 (44.9%) |
| Race | |
| White | 31 (63.3%) |
| Nonwhite | 18 (36.7%) |
| Exercise amount | |
| >120 minutes per week | 21 (42.9%) |
| ≤120 minutes per week | 26 (53.1%) |
| Unknown | 2 (4.1%) |
| Vitamin D–binding protein (µmol/L) | 4.19 ± 2.49 |
| Albumin (g/L) | 42.47 ± 3.94 |
| Serum calcium (mmol/L) | 2.30 ± 0.19 |
| Parathyroid hormone (ng/L) | 29.86 ± 8.25 |
| Dietary calcium intake (mg/d) | 925.85 ± 421.76 |
| Lumbar spine BMD (g/cm2) | 1.05 ± 0.14 |
Note: Data are presented as n (%) for categorical variables and mean ± SD for continuous variables.