TABLE 1.
Demographic characteristics of the subjects1
| Characteristics | Placebo (n = 15) | Vitamin D3 in OJ (n = 18) | Vitamin D2 in OJ (n = 17) | Vitamin D3 in capsules (n = 20) | Vitamin D2 in capsules (n = 16) |
| Age (y) | |||||
| Mean ± SD | 40.8 ± 10.8 | 41.4 ± 12.6 | 40.1 ± 15.6 | 40.1 ± 18.0 | 38.9 ± 12.3 |
| Range | 24–59 | 22–65 | 19–73 | 22–81 | 18–59 |
| Sex [n (%)] | |||||
| Female | 13 (86.7) | 15 (83.3) | 9 (52.9) | 12 (60) | 10 (62.5) |
| Male | 2 (13.3) | 3 (16.7) | 8 (47.1) | 8 (40) | 6 (37.5) |
| BMI (kg/m2) | 27.8 | 29.9 | 27 | 29.1 | 30.4 |
| Race [n (%)] | |||||
| Asian | 1 (6.7) | 1 (9.1) | 1 (5.9) | 4 (20) | 1 (6.25) |
| American Indian | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (6.25) |
| Black | 7 (46.7) | 11 (61.1) | 9 (52.9) | 8 (40) | 9 (56.25) |
| Hispanic | 0 (0) | 2 (11.1) | 0 (0) | 2 (10) | 1 (6.25) |
| White | 6 (40) | 2 (11.1) | 6 (35.3) | 6 (30) | 4 (25) |
| Other | 1 (6.7) | 2 (11.1) | 1 (5.9) | 0 (0) | 0 (0) |
| Multivitamin use [n (%)] | 5 (33.3) | 5 (27.8) | 6 (35.3) | 4 (20) | 5 (31.3) |
| Vitamin D supplement use (n) | 0 | 0 | 0 | 0 | 0 |
| Dropouts [n (%)] | 5 (21.7) | 2 (9.1) | 3 (15) | 0 (0) | 4 (20) |
| Compliance (%) | 95.6 | 95.0 | 94.0 | 95.3 | 94.1 |
1
OJ, orange juice.