Table 1.
Sample characteristics of the participants (N=262)
| Characteristic | Value |
|---|---|
| Race/ethnicity, No. (%) | |
| White | 162 (61.8) |
| Black | 86 (32.8) |
| Other | 14 (5.3) |
| Age, mean (SD), y | 14.9 (2.2) |
| Socioeconomic status, mean (SD) a | 37.3 (13.7) |
| Tanner breast stage, No. (%) | |
| 1 | 4 (1.5) |
| 2 | 5 (1.9) |
| 3 | 27 (10.3) |
| 4 | 39 (14.9) |
| 5 | 187 (71.4) |
| Postmenarcheal, No. (%) | |
| Yes | 209 (79.8) |
| No | 53 (20.2) |
| Weight category b | |
| Normal weight | 155 (59.4) |
| Overweight | 49 (18.7) |
| Obese | 58 (22.1) |
| Currently using hormonal contraceptive (any type) | |
| Yes | 67 (25.6) |
| No | 195 (74.4) |
Abbreviation: SD = standard deviation
a
Hollingshead AB (35);
b
normal weight = BMI <85th percentile; overweight = BMI ≥85th to <95th percentile; obese = BMI ≥ 95th percentile.