Table 4.
Oxytocin and other associated factors with birth by emergency caesarean section in primiparous women (N=2151)a
| Emergency CS n=316 | Crude OR (95% CI) | AOR (95% CI)b | |
|---|---|---|---|
| Oxytocin only (n=309)c | n (%) | ||
| Use of oxytocin and reason | |||
| Ruptured membranes | 57 (18.4) | 3.29 (2.52–4.30) | 2.43 (1.66–3.56) |
| Stage 1 | 47 (15.2) | 2.09 (1.57–2.78) | 1.80 (1.21–2.68) |
| Stage 2 | 6 (1.9) | 1.70 (0.93–3.12) | 0.95 (0.40–2.28) |
| Induced | 123 (39.9) | 4.04 (3.30–4.95) | 6.01 (4.29–8.42) |
| No oxytocin | 76 (24.6) | Ref. | Ref. |
| Maternal age (years) | |||
| <25 | 118 (37.3) | 0.65 (0.51–0.83) | 0.81 (0.62–1.05) |
| 25–37 | 195 (61.8) | Ref. | Ref. |
| ≥38 | 3 (0.9) | 4.86 (0.97–24.24) | 2.87 (0.43–19.10) |
| Gestational age (weeks) | |||
| <37 | 27 (8.5) | 0.76 (0.50–1.16) | 0.92 (0.58–1.47) |
| 37–41 | 285 (90.2) | Ref. | Ref. |
| ≥42 | 4 (1.3) | 1.62 (0.53–4.97) | 0.75 (0.23–2.46) |
| Birthweight (g) | |||
| <3650 | 267 (84.5) | Ref. | Ref. |
| ≥3650 | 49 (15.5) | 3.60 (2.48–5.22) | 3.57 (2.40–5.32) |
| Bad obstetric history | |||
| Yes | 11 (3.5) | 3.12 (1.49–6.53) | 1.05 (0.48–2.32) |
| No | 305 (96.5) | Ref. | Ref. |
| Presentation/lie | |||
| Vertex | 282 (89.2) | Ref. | Ref. |
| No vertex | 34 (10.8) | 3.13 (2.04–4.82) | 3.36 (2.07–5.46) |
a
Excluding multiple pregnancies and elective CS.
b
Controlled for all variables in the table.
c
Use of oxytocin not registered for 7 primiparous women. AOR: adjusted odds ratio.