title: Fighting as a marker for multiple problem behaviors in adolescents.
abstract: OBJECTIVE
  Behaviors that put adolescents at risk frequently occur together. To help identify high-risk adolescents, we analyzed a national, self-reported behavior survey of high school students to assess the suitability of fighting as a marker for students with multiple problem behaviors.
  
  
  METHODS
  A cross-sectional cluster survey of 11,631 U.S. high school students in 1990 was used to compare the prevalence of recent problem behaviors among all students and those who fight.
  
  
  RESULTS
  One (8%) of every 12 students was in a fight during the 30 days before the survey. Reported problem behaviors were prevalent among fighters: during the previous 12 months, 24% attempted suicide; during the previous 30 days, 26% carried a firearm, 13% used cocaine, and 39% drove a motor vehicle while intoxicated; during the previous 3 months 41% had two or more sex partners; and 45% had sexual intercourse and did not use a condom the last time they had sex. Of all students, fighters accounted for 22% of those who reported attempting suicide, 49% carrying a firearm, 46% using cocaine, 18% driving while intoxicated, 25% having sex with multiple partners, and 11% not using condoms. Three or more of these six problem behaviors were reported by 26% of the fighters. The problem behaviors were all positively correlated, and the first principal component accounted for 35% of the total variation among the individual variables.
authors.affiliation: Epidemiology Program Office Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
authors.forename: D M
authors.initials: DM
authors.lastname: Sosin
authors.forename: T D
authors.initials: TD
authors.lastname: Koepsell
authors.forename: F P
authors.initials: FP
authors.lastname: Rivara
authors.forename: J A
authors.initials: JA
authors.lastname: Mercy
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000374:Aggression; D016000:Cluster Analysis; D003042:Cocaine; D003430:Cross-Sectional Studies; D003625:Data Collection; D005389:Firearms / Q000706:statistics & numerical data; D006801:Humans; D016015:Logistic Models; D015995:Prevalence; D012309:Risk-Taking; D017678:Sex Distribution; D012725:Sexual Behavior / Q000706:statistics & numerical data; D012747:Sexual Partners; D012940:Social Problems / Q000706:statistics & numerical data*; D013334:Students; D019966:Substance-Related Disorders / Q000453:epidemiology; D013406:Suicide, Attempted / Q000706:statistics & numerical data; D014481:United States / Q000453:epidemiology
chemical_list: D003042:Cocaine