| 
 | 子宫下段的愈合情况 | 统计值 | P | |
| 不良(n = 214) | 良好(n = 697) | |||
| 子宫下段瘢痕厚度 <1.2 mm ≥1.2 mm | 
 155 (72.4%) 59 (27.6%) | 
 158 (22.7%) 539 (77.3%) | 
 c2 = 179.764 | 
 0.000 | 
| 肌层连续 否 是 | 
 15 (7.0%) 199 (93.0%) | 
 9 (1.3%) 688 (98.7%) | 
 c2 = 20.871 | 
 0.000 |