TABLE 1.
Baseline characteristics of study subjects
| Soy isoflavone–treated groups | ||||
| Placebo group | 80 mg/d | 120 mg/d | P value1 | |
| n | 134 | 135 | 134 | |
| Age (y) | 55.0 ± 3.72 | 54.9 ± 4.0 | 54.5 ± 4.1 | 0.55 |
| Age at menarche (y) | 12.7 ± 1.5 | 12.9 ± 1.5 | 12.8 ± 1.6 | 0.46 |
| Age at menopause (y) | 48.2 ± 5.1 | 48.5 ± 5.5 | 47.6 ± 6.3 | 0.42 |
| Weight (kg) | 68.0 ± 9.8 | 68.8 ± 13.2 | 67.9 ± 10.2 | 0.766 |
| Height (cm) | 163.8 ± 6.7 | 164.8 ± 5.9 | 165.0 ± 6.0 | 0.236 |
| BMI (kg/m2) | 25.4 ± 3.4 | 25.3 ± 4.5 | 24.9 ± 3.2 | 0.594 |
| Lean body mass (kg) | 41.4 ± 4.3 | 42.4 ± 4.8 | 42.2 ± 4.8 | 0.166 |
| Body fat (kg) | 24.9 ± 6.0 | 25.0 ± 6.4 | 24.4 ± 6.9 | 0.734 |
| Body fat (%) | 36.5 ± 5.3 | 35.6 ± 5.4 | 35.7 ± 5.9 | 0.406 |
| Body temperature (°F) | 97.6 ± 0.9 | 97.6 ± 0.8 | 97.6 ± 1.4 | 0.63 |
| Pulse (beats/min) | 72.5 ± 12.2 | 73.2 ± 10.7 | 73.3 ± 9.3 | 0.81 |
| Blood pressure (mm Hg) | ||||
| Systolic | 122.9 ± 16.2 | 122.4 ± 16.3 | 119.7 ± 15.8 | 0.23 |
| Diastolic | 71.0 ± 10.3 | 71.5 ± 10.3 | 70.6 ± 11.6 | 0.81 |
1
P values were derived by one-factor ANOVA between the 3 treatment groups.
2
Mean ± SD (all such values).