Pregnancy outcomes and risk in severe hypertension compared with pre-eclampsia in the absence of severe hypertension
| Gestational hypertension, %8,9 | Preeclampsia without severe features, BP <160/110 mmHg, %8,9 | Severe gestational hypertension, BP ≥160/110 mmHg, %8,9 | Odds ratio (95% CI) for outcome in severe hypertension adjusted for pre-eclampsia10 | |
|---|---|---|---|---|
| Maternal outcomes | ||||
| Elevated liver enzymes | 1.1 | 3.2 | 6.3 | 2.47 (1.12–5.43) |
| Placental abruption | 0.3–1.3 | 0.5–3.2 | 3.1–4.2 | |
| DIC | 0.1 | 0.5 | 3.1 | |
| Induction of labour | 23.8 | 41.5 | 50 | |
| Caesarean delivery | 29.1 | 30.9 | 28.1 | |
| Neonatal outcomes | ||||
| Delivery <37 weeks’ gestation | 17.8 | 25.8 | 54.2 | 2.59 (1.83–3.68) |
| Delivery <34 weeks’ gestation | 1 | 1.9 | 3.2 | 3.07 (1.97–4.80) |
| Small for gestational age | 6.5–6.9 | 4.8–9.2 | 10.2–20.8 | 1.75 (1.19–2.58) |
| Birthweight <2,500 g | 7.7 | 11.1 | 25.8 | |
| Intensive care unit admission | 12.5–18.2 | 24.2–27.3 | 20.8–29 | |
| Respiratory distress | 4.8–5.5 | 3.2–4.8 | 6.5–12.5 | |
| Perinatal death | 0.1–1.7 | 0.5 | 0.1–3.1 | |
BP = blood pressure; CI = confidence interval; DIC = disseminated intravascular coagulation.