| Body mass index (BMI) at booking (kg/m2) | Average rate of intrapartum caesarean birth (category 1, 2 or 3) | Average rate of emergency caesarean birth (category 1 or 2) | Average rate of postpartum haemorrhage |
|---|---|---|---|
| 35 or less | 7 per 1,000 (so this does not happen in about 993 pregnancies per 1,000) | 5 per 1,000 (so this does not happen in about 995 pregnancies per 1,000) | 20 per 1,000 (so this does not happen in about 980 pregnancies per 1,000) |
| More than 35 | No difference compared with women with a BMI 35 kg/m2 or less | No difference compared with women with a BMI 35 kg/m2 or less | No difference compared with women with a BMI 35 kg/m2 or less |
From: Intrapartum care
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