Priorities for research on family planning impact:recommendations of a WHO Think Tank meeting

INTRODUCTION Contraception,a novelty in the 1960s when less than 10%of couples in developing regions1 were using a method has now become a norm in much of the world.In 2023,global contracep-tive prevalence of any method was estimated at 65%and of modern methods at 59%.2 With an estimated 748 million women using a modern method,2 no other modern technology has been used voluntarily by so many people.US Centers for Disease Control has included family planning among the 10 great public health achievements of the 20th century.3 Yet,close to one in five women continue to have an unmet need for family planning in 20232 and 40%of users discontinue use within 12 months of contraceptive adoption.