Table 3 Comparison of delivery mode among the three groups
|  | No-NA group (n = 172) | Early-NA group (n = 603) | Late-NA group (n = 344) | χ2/R | p value |
|---|---|---|---|---|---|
Natural delivery (n, %) | 161, 93.6 | 572, 94.9 | 327, 95.1 | 0.530 | 0.767 |
Episiotomy (n, %) | 3, 1.7 | 18, 3.0 | 12, 3.5 | 1.225 | 0.542 |
Forceps delivery (n, %) | 1, 0.6 | 2, 0.3 | 1, 0.3 | 0.830 | 0.808 |
Intrapartum CD (n, %) | 7, 4.1 | 11, 1.8 | 4, 1.2 | 4.628 | 0.099 |