| Table 2. Characteristics of the patients included. | ||||
| Study | Age - Dual group (years) | Age - hCG group (years) | BMI - Dual group (kg/m2) | BMI - hCG group (kg/m2) |
|---|---|---|---|---|
| Schachter et al., 2008 | 33.7±5.6 | 34.7±4.7 | N/A | N/A |
| Kim et al., 2014 | 36.2±3.7 | 35.8±3.8 | 21.7±2.0 | 21.4±2.2 |
| Decleer et al., 2014 | 30±3.6 | 30.5±4.1 | 23.8±4.6 | 23.5±5.1 |
| Mahajan et al., 2016 | 32±5 | 33±4 | 25.8±3.9 | 24.2±3.2 |
| Maged et al., 2021 | 39.1±2.5 | 38.9±2.2 | 27.3±1.8 | 26.9±1.4 |
| Haas et al., 2020 | 36±2.5 | 35.3±2.5 | 24±3.2 | 23.7±5.0 |