Table 2 Baseline characteristics of participants who completed both phases of the study protocol
|  | Mean ± SE | Range |
|---|---|---|
Age (years) | 37.7 ± 1.4 | 20–54 |
Body weight (kg) | 64.1 ± 1.5 | 46.6–83.7 |
Body Mass Index, BMI (kg/m2) | 23.4 ± 0.4 | 18.9–29.9 |
Age at menarche (years) | 13.0 ± 0.4 | 11–16 |
Ethnicity | ||
 White (%) | 93 |  |
 Non-white (%) | 7 | |
Full term pregnancy at least once | ||
 Yes (%) | 61 |  |
 No (%) | 39 | |
Breast-fed infant | ||
 Yes (%) | 96 |  |
 No (%) | 4 | |
Age at first live birth (years) | 26.9 ± 4.6 | 19–38 |
Family history of breast cancer | ||
 Yes (%) | 63.3 |  |
 No (%) | 36.7 | |
Family history of hypertension | ||
 Yes (%) | 56.1 |  |
 No (%) | 43.9 | |