| Characteristics | Single layer (Total = 115) | Double layer (Total = 115) | P-value |
| Age (years) | 27.4 ± 5.7 | 26.4 ± 5.4 | ^0.173 |
| BMI (kg/m2) | 28.3 ± 1.9 | 28.2 ± 2.4 | ^0.715 |
| Time of start of follow up from cesarean section (months) | 5.3 ± 0.7 | 5.5 ± 0.7 | ^0.157 |