Magee LA, et al. - Because most estimates of pregnancy hypertension are from cross-sectional hospital surveys in less developed countries and are considered to be overestimates, researchers have established reliable estimates of the incidence and type of pregnancy hypertension in 4 less developed settings in South Asia (India and Pakistan) and sub-Saharan Africa (Mozambique and Nigeria), using community-based blood pressure (BP) data collected using a validated semi-automated BP device from the Community-Level Interventions for Pre-eclampsia (CLIP) cluster of randomized controlled trials. Women were usually young, parous, with singletons, and enrolled at a median gestational age of 10.4 (India) to 25.9 weeks (Mozambique) in 28,420 pregnancies studied. In Pakistan, the incidence of pregnancy hypertension was lower than in India, Mozambique, or Nigeria. Most (7%–8%) hypertension was pregnancy-induced (‘gestational’) without other associated problems at first presentation with elevated blood pressure. In less developed settings, pregnancy hypertension is common. In this investigation, most women presented with gestational hypertension that could be monitored and timed delivery to improve results.