Table 1.
Demographic characteristics of study participants.
| Characteristic | All subjects (n = 653) | Females (n = 408) | Males (n = 245) | |||
|---|---|---|---|---|---|---|
| Age at enrollment (years) [mean ± SD (range)] | 36.0 ± 4.8 (20.9–56.8) | 35.7 ± 4.2 (20.9–46.7) | 36.5 ± 5.5 (23.9–56.8) | |||
| Race [n (%)] | ||||||
| Caucasian | 552 (85) | 339 (83) | 213 (87) | |||
| African American | 27 (4) | 18 (4) | 9 (4) | |||
| Asian | 43 (7) | 28 (7) | 15 (6) | |||
| Other | 31 (5) | 23 (6) | 8 (3) | |||
| BMI [mean ± SD (range)]a | 25.9 ± 4.9 (16.5–49.0) | 24.9 ± 5.0 (16.5–49.0) | 27.5 ± 4.3 (19.3–47.9) | |||
| BMI at enrollment (kg/m2) [n (%)]a | ||||||
| Underweight (< 18.5) | 6 (1) | 6 (2) | 0 (0) | |||
| Normal (18.5–24.9) | 318 (49) | 249 (61) | 69 (28) | |||
| Overweight (25–29.9) | 210 (32) | 89 (22) | 121 (50) | |||
| Obese (≥ 30) | 116 (18) | 62 (15) | 54 (22) | |||
| Education [n (%)]b | ||||||
| Did not graduate from college | 62 (13) | 31 (10) | 31 (18) | |||
| College graduate | 164 (34) | 107 (34) | 57 (32) | |||
| Graduate degree | 263 (54) | 174 (56) | 89 (50) | |||
| an = 650. bn = 489. | ||||||