Table 3.
The effect of whole soy and purified daidzein on anthropometric measures and body composition.
| Whole soy group | Daidzein group | Placebo group | P values | |
|---|---|---|---|---|
| n = 90 | n = 90 | n = 90 | ||
| Body weight (kg) | ||||
| Baseline | 56.6 ± 7.33 | 56.3 ± 9.18 | 57.7 ± 9.01 | 0.552 |
| 6-month | 56.5 ± 7.21 | 57.0 ± 9.16 | 57.0 ± 8.45 | 0.901 |
| Change | 0.20 ± 1.78 | 0.59 ± 3.35 | −0.20 ± 1.53 | 0.095 |
| %change | 0.399 ± 3.347 | 1.272 ± 6.971 | −0.311 ± 2.649 | 0.092 |
| Body mass index (BMI, kg/m2) | ||||
| Baseline | 23.4 ± 2.78 | 23.2 ± 3.46 | 23.7 ± 3.34 | 0.552 |
| 6-month | 23.5 ± 2.78 | 23.5 ± 3.42 | 23.6 ± 3.21 | 0.964 |
| Change | 0.163 ± 0.758 | 0.331 ± 1.388 | 0.037 ± 0.622 | 0.143 |
| %change | 0.746 ± 3.331 | 1.672 ± 7.073 | 0.171 ± 2.574 | 0.112 |
| Waist circumference (WC, cm) | ||||
| Baseline | 79.1 ± 7.70 | 78.1 ± 8.33 | 78.4 ± 8.84 | 0.693 |
| 6-month | 78.1 ± 7.85 | 77.4 ± 8.41 | 76.9 ± 7.90 | 0.600 |
| Change | −0.816 ± 2.779 | −0.706 ± 2.503 | −1.039 ± 2.725 | 0.701 |
| %change | −0.991 ± 3.522 | −0.877 ± 3.130 | −1.217 ± 3.298 | 0.787 |
| Hip circumference (HC, cm) | ||||
| Baseline | 93.1 ± 5.88 | 93.1 ± 7.09 | 93.8 ± 7.04 | 0.736 |
| 6-month | 93.0 ± 6.02 | 93.1 ± 7.10 | 93.1 ± 6.55 | 0.995 |
| Change | −0.094 ± 1.627 | 0.009 ± 1.547 | −0.195 ± 1.547 | 0.691 |
| %change | −0.092 ± 1.792 | 0.019 ± 1.664 | −0.194 ± 1.660 | 0.708 |
| Waist and hip ratio (WHR) | ||||
| Baseline | 0.848 ± 0.047 | 0.838 ± 0.047 | 0.834 ± 0.052 | 0.137 |
| 6-month | 0.839 ± 0.044 | 0.830 ± 0.049 | 0.826 ± 0.050 | 0.171 |
| Change | −0.008 ± 0.0265 | −0.008 ± 0.022 | −0.009 ± 0.024 | 0.937 |
| %change | −0.899 ± 3.073 | −0.899 ± 2.561 | −1.026 ± 2.821 | 0.942 |
| Body fat percentage (%)* | ||||
| Baseline | 30.5 ± 5.87 | 30.5 ± 6.55 | 30.6 ± 6.41 | 0.992 |
| 6-month | 30.7 ± 6.01 | 30.1 ± 6.17 | 30.4 ± 5.94 | 0.812 |
| Change | 0.159 ± 2.104 | −0.382 ± 2.241 | 0.122 ± 2.087 | 0.180 |
| %change | 0.691 ± 6.805 | −0.786 ± 7.378 | 0.507 ± 6.421 | 0.306 |
| Fat mass (kg) | ||||
| Baseline | 17.4 ± 5.30 | 17.9 ± 6.69 | 18.0 ± 6.56 | 0.831 |
| 6-month | 17.6 ± 5.54 | 17.5 ± 6.04 | 17.6 ± 6.06 | 0.991 |
| Change | 0.233 ± 1.584 | −0.310 ± 1.844 | 0.099 ± 1.669 | 0.092 |
| %change | 1.517 ± 9.440 | −0.542 ± 9.400 | 0.550 ± 8.055 | 0.319 |
| Free fat mass (kg) | ||||
| Baseline | 38.6 ± 3.62 | 38.8 ± 4.08 | 39.1 ± 3.51 | 0.673 |
| 6-month | 38.7 ± 3.23 | 38.9 ± 5.63 | 38.9 ± 3.21 | 0.894 |
| Change | 0.165 ± 0.956 | 0.121 ± 3.484 | −0.129 ± 1.198 | 0.640 |
| %change | 0.519 ± 2.499 | 0.200 ± 9.867 | −0.223 ± 2.796 |
All values are means ± standard deviation; P values refer to comparison among the 3 study groups by ANOVA (analysis of variance); *Skewed variables or variables with heterogeneity in variance (Body fat%) were corrected by log transformation and reported arithmetic means.