Table 3 Adverse outcomes in the first stage of labor in multiparous women (n = 7109)
Duration of First stage of labor | Linear trend X2 | P | |||||
|---|---|---|---|---|---|---|---|
< 6 h | 6–11.9 h | 12–17.9 h | 18–23.9 h | ≥24 h | |||
Overall outcomes | 714(21.0) | 588(23.4) | 236(28.8) | 81(35.5) | 58(38.4) | 57.64 | < 0.001 |
Maternal outcomes | 246(7.2) | 221(8.8) | 113(13.8) | 46(20.2) | 45(29.8) | 121.38 | < 0.001 |
Referral cesarean delivery | 28(0.8) | 29(1.2) | 20(2.4) | 13(5.7) | 8(5.3) | 50.97 | < 0.001 |
Instrumental delivery | 77(2.3) | 72(2.9) | 35(4.3) | 12(5.3) | 11(7.3) | 23.46 | < 0.001 |
Postpartum hemorrhage | 72(2.5) | 53(2.5) | 18(2.6) | 9(4.7) | 3(2.3) | 0.73 | 0.393 |
III and IV degree laceration | 34(1.1) | 23(1.0) | 14(1.9) | 4(2.0) | 3(2.3) | 3.76 | 0.053 |
Length of stay ≥90th | 100(2.9) | 100(4.0) | 67 (8.2) | 31(13.6) | 34(22.5) | 160.81 | < 0.001 |
Neonatal outcomes | 543(16.0) | 435(17.3) | 158(19.3) | 49(21.5) | 28(18.5) | 7.75 | 0.005 |
NICU | 184(5.4) | 150(6.0) | 54(6.6) | 16(7.0) | 7(4.6) | 1.14 | 0.285 |
Shoulder dystocia | 76(2.3) | 73(3.0) | 20(2.5) | 10(4.5) | 6(4.1) | 4.33 | 0.037 |
Apgar ≤7(5 min) | 24(0.7) | 42(1.7) | 15(1.8) | 5(2.2) | 3(2.0) | 12.66 | < 0.001 |
Neonatal resuscitation | 354(11.0) | 287(12.2) | 101(13.3) | 31(15.3) | 17(13.1) | 5.77 | 0.016 |
Assisted ventilation | 72(2.2) | 66(2.8) | 31(4.1) | 8(3.9) | 4(2.7) | 7.13 | 0.008 |