In the single study in India (which was not of adequate quality), the results comparing oxytocin with ergometrine were almost identical to all studies comparing oxytocin with ergometrine (PPH, OR 0.71, 95% CI 0.35–1.43; severe PPH, OR 0.73, 95% CI 0.20–2.59; mean blood loss −5 ml, 95% CI from −20 to 10 ml, n = 1293). The gene discussed is OXT; the disease is pulmonary arterial hypertension.