Table 4.
Maternal adverse outcomes in intention to treat population. Values are numbers (percentages) unless stated otherwise
| Variables | Induction group (n=1381) | Expectant management group (n=1379) | Relative risk (95% CI) | P value |
|---|---|---|---|---|
| Secondary maternal outcomes | ||||
| Chorioamnionitis | 2 (0.1) | 6 (0.4) | 0.33 (0.07 to 1.65) | 0.29 |
| Shoulder dystocia | 6 (0.4) | 4 (0.3) | 1.50 (0.42 to 5.30) | 0.76 |
| Perineal tear grade 3 or 4 | 40 (2.9) | 50 (3.6) | 0.80 (0.53 to 1.20) | 0.33 |
| Postpartum haemorrhage (>1000 mL) | 140 (10.1) | 146 (10.6) | 0.96 (0.77 to 1.19) | 0.75 |
| Wound infection | 4 (0.3) | 3 (0.2) | 1.33 (0.30 to 5.94) | 1.00 |
| Urinary tract infection, including pyelonephritis | 5 (0.4) | 7 (0.5) | 0.71 (0.23 to 2.24) | 0.77 |
| Endometritis | 18 (1.3) | 6 (0.4) | 3.00 (1.19 to 7.52) | 0.02 |
| Sepsis | 0 (0.0) | 0 (0.0) | — | 1.00 |
| Exploratory maternal outcomes | ||||
| Pre-eclampsia, gestational hypertension, eclampsia | 19 (1.4) | 42 (3.0) | 0.45 (0.26 to 0.77) | 0.004 |
| Uterine rupture | 0 (0.0) | 0 (0.0) | — | 1.00 |
| Cervical tear | 5 (0.4) | 8 (0.6) | 0.62 (0.20 to 1.90) | 0.58 |
| Venous thromboembolism | 0 (0.0) | 1 (0.1) | — | 1.00 |
| Maternal admission to intensive care unit | 2 (0.1) | 0 (0.0) | — | 0.50 |
| Maternal death | 0 (0.0) | 0 (0.0) | — | 1.00 |