This report examines trends in adolescent childbearing using techniques that focus on the most vulnerable girls, such as child mothers, girls with repeat adolescent childbearing, and births that occur in dangerously quick succession. In using these new measures, it uncovers the untold story of  more than 50 years of adolescent childbearing in the world’s low- and middle-income countries.

This Supplementary Material is an annex to the full report.