Worldwide, one in five women has a child by the age of 18. In the poorest regions of the world, this rises to over one in three women. Adolescent pregnancies are more likely to occur among poor, less educated and rural populations. WHO’s recommendations for reducing early pregnancy are informed by two graded systematic reviews, three ungraded studies, as well as the conclusions of an expert panel. The studies in the systematic reviews included those conducted in developing countries (Mexico and Nigeria) as well as those conducted among poorer socio-economic populations in developed countries. Collectively, the studies demonstrate reductions in.
