title: Adolescent and young adult women's use of emergency contraception.
abstract: OBJECTIVE
  To determine differences in the use of emergency contraception (EC) between adolescent (11-17 years old) and young adult women (18-24 years old) in an insured, population based cohort.
  
  
  METHODS
  Females 11-24 years old were divided into two groups: adolescents (11-17) and young adults (18-24) at their first captured EC prescription fill. A medical record review followed.
  
  
  METHODS
  The main outcomes of our study were reason for EC use, timing of EC use, and repeat use. Chi-square tests were used to compare dichotomous variables between groups by age and for ever vs repeat use. An independent t-test was used to compare continuous variables. A person-time analysis was used to compare rates of repeat use.
  
  
  RESULTS
  344 women were identified as having filled at least one prescription for an EC drug. Among ever users, adolescents were more likely than young adults to cite no contraception as their reason for seeking EC (30% for 11-17 and 24% for 18-24 year olds; P = 0.38). For both ever and repeat users, young adults reported condom failure as their main reason for seeking EC. We calculated t-tests on the hours since unprotected sex. For adolescents the mean was 42 hours and for young adults the mean was 34 hours (P = 0.13). Both are within the recommended 72-hour window for administration and were not significantly different. The rate of repeat use was essentially the same for both age groups.
  
  
  CONCLUSIONS
  We found that adolescent use of EC was similar to young adult use and support the recommendation that 17-year-olds have behind-the-counter access to EC.
authors.affiliation: Department of Biostatistics and Research Epidemiology, Henry Ford Hospital, Detroit, Michigan 48202, USA. salford1@hfhs.org
authors.forename: S M Hensley
authors.initials: SM
authors.lastname: Alford
authors.forename: R E
authors.initials: RE
authors.lastname: Lappin
authors.forename: K
authors.initials: K
authors.lastname: Wells
authors.forename: A R
authors.initials: AR
authors.lastname: Barone
authors.forename: V K
authors.initials: VK
authors.lastname: Dalton
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D044363:Contraception, Postcoital / Q000706:statistics & numerical data*; D019033:Delivery of Health Care, Integrated; D005260:Female; D006801:Humans; D008824:Michigan; D055553:Prescription Drugs / Q000627:therapeutic use*; D055815:Young Adult
chemical_list: D055553:Prescription Drugs