Clinical Characteristics According to Epidural Analgesia Use.
| Variable | Epidural Analgesia (n = 634) No. (%) | No Epidural Analgesia (n = 2,125) No. (%) |
|---|---|---|
| Maternal age | ||
| <21 years | 158 (24.96) | 490 (23.19) |
| 22–34 years | 425 (67.14) | 1,384 (65.50) |
| >34 years | 50 (7.90) | 239 (11.31) |
| Birth weight (>4 kg) | 49 (7.73) | 179 (8.42) |
| Nulliparous | 341 (53.79) | 718 (33.79) |
| Multiparous | 293 (46.21) | 1,407 (66.21) |
| Instrument use | 106 (16.72) | 100 (4.71) |
| Episiotomy | 168 (26.50) | 441 (20.75) |
| Severe laceration | 65 (10.25) | 111 (5.22) |
| Induced labor | 401 (63.25) | 898 (42.26) |