title: Trends in contraceptive use.
abstract: BACKGROUND
  In the past 50-60 years, desired and actual family size have decreased and contraceptive use has increased, especially in developing countries. Unmet need for modern contraceptives and unintended pregnancy levels remain significant.
  
  
  METHODS
  Data compiled by the United Nations and information from national surveys of women of reproductive age are used to examine trends.
  
  
  RESULTS
  Oral contraceptives and condoms have been predominant methods in developed countries; sterilization has been the most common in Latin America and the Caribbean and Asia; hormonal methods, in Africa. Some 222 million women in developing countries have unmet need for modern contraceptives, resulting in 2012 in an estimated 54 million unintended pregnancies and 79,000 maternal deaths more than if they used modern methods.
  
  
  CONCLUSIONS
  Improvements are needed in contraceptive information and services as well as in contraceptive methods themselves to increase couples' success in achieving their desired timing and number of children.
authors.forename: Jacqueline E
authors.initials: JE
authors.lastname: Darroch
mesh_terms: D000293:Adolescent; D000328:Adult; D003267:Contraception / Q000706:statistics & numerical data / Q000639:trends*; D003268:Contraception Behavior / Q000208:ethnology / Q000639:trends*; D019049:Developed Countries / Q000706:statistics & numerical data*; D003906:Developing Countries / Q000706:statistics & numerical data*; D005191:Family Characteristics / Q000208:ethnology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D055815:Young Adult