title: Reasons for contraceptive nonuse at first sex and unintended pregnancy.
abstract: OBJECTIVE
  To examine reasons for contraceptive nonuse at first sex and subsequent unintended pregnancy among women attending family planning and prenatal clinics.
  
  
  METHODS
  Data come from the Determinants of Unintended Pregnancy Risk in New Orleans study. Reasons for nonuse by age, partner's age, and pregnancy status are compared.
  
  
  RESULTS
  Concern about parents' finding out about sexual activity was a common reason for nonuse at first sex and first unintended pregnancy. Problems accessing and discontinuation of contraception were reasons given at second or higher-order unintended pregnancy.
  
  
  CONCLUSIONS
  Reasons for nonuse vary by event and age at event. Providers should consider various reasons when counseling patients on contraceptive options.
authors.affiliation: University of Pittsburgh, Graduate School of Public Health, Department of Epidemiology, Pittsburgh, PA, USA.
authors.forename: A Danielle
authors.initials: AD
authors.lastname: Iuliano
authors.forename: Ilene S
authors.initials: IS
authors.lastname: Speizer
authors.forename: John
authors.initials: J
authors.lastname: Santelli
authors.forename: Carl
authors.initials: C
authors.lastname: Kendall
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003068:Coercion; D003268:Contraception Behavior / Q000208:ethnology / Q000523:psychology*; D003271:Contraceptive Agents, Female / Q000627:therapeutic use; D003274:Contraceptive Devices, Female / Q000706:statistics & numerical data; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008145:Louisiana; D011247:Pregnancy; D011253:Pregnancy in Adolescence / Q000208:ethnology / Q000523:psychology*; D049168:Pregnancy, Unplanned / Q000208:ethnology / Q000523:psychology*; D018570:Risk Assessment; D012307:Risk Factors; D013997:Time Factors; D047568:Unsafe Sex / Q000208:ethnology / Q000523:psychology*
chemical_list: D003271:Contraceptive Agents, Female