title: Is a previous unplanned pregnancy a risk factor for a subsequent unplanned pregnancy?
abstract: OBJECTIVE
  The objective of the study was to determine whether a history of unplanned pregnancy was a risk factor for a subsequent unplanned pregnancy.
  
  
  METHODS
  We analyzed 542 women aged 14-35 years, enrolled in Project PROTECT, a randomized clinical trial to promote dual-method contraception use to prevent sexually transmitted diseases and unplanned pregnancy. Predictors of unplanned pregnancy were assessed by comparing women with and without a history of unplanned pregnancy.
  
  
  RESULTS
  More than 1 in 5 women (22.5%) experienced an unintended pregnancy. History of an unintended pregnancy was a predictor of unintended pregnancy (adjusted odds ratio, 1.91; 95% confidence interval, 1.09-3.34). Other factors that were significantly associated with unplanned pregnancy included young age and low educational status.
  
  
  CONCLUSIONS
  Future efforts should focus on bridging the gap between identifying risk factors for unplanned pregnancy and interventions aimed at reducing the incidence in high-risk groups.
authors.affiliation: Warren Alpert Medical School, Brown University, Providence, RI, USA.
authors.forename: Lindsay M
authors.initials: LM
authors.lastname: Kuroki
authors.forename: Jenifer E
authors.initials: JE
authors.lastname: Allsworth
authors.forename: Colleen A
authors.initials: CA
authors.lastname: Redding
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Blume
authors.forename: Jeffrey F
authors.initials: JF
authors.lastname: Peipert
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003625:Data Collection; D004522:Educational Status; D005260:Female; D006801:Humans; D011247:Pregnancy; D049168:Pregnancy, Unplanned; D012307:Risk Factors; D014481:United States