According to the study, over 40 years, the twinning rate increased by a third, from nine to 12 births per 1,000. This is important because twin deliveries are associated with higher child mortality and complications for the mother during pregnancy and delivery Professor Christiaan MondenProfessor Monden says, ‘The number of twins on Earth is now at a record high. But 80% of all twin deliveries are now in Africa and Asia, with Africa having the highest twinning rates of all. They also collected information on twinning rates during 1980-1985 from 112 countries. The findings are reported in Human Reproduction and is the first comprehensive global overview of twin births.
