In the majority of episodes of fatal interpersonal violence, the weapo
n used is a firearm. Amid frequent reports of youths carrying weapons,
including firearms, we conducted a case-control study to identify ris
k factors for being charged with gun-carrying and gun-carrying, per se
, among adolescents in Jefferson Parish, Louisiana. Cases were defined
as incidents of gun-carrying among adolescents < 19 years of age, leg
ally charged in the Jefferson Parish, Louisiana, juvenile court from J
anuary 1, 1992, through April 15, 1993. For each case, we randomly dre
w three age-, gender-, and school-matched control subjects from the en
rollment rosters of the Jefferson Parish public schools and administer
ed a questionnaire. The data set comprised 38 case subjects and 103 ma
tched control subjects. Thirty (29%) control subjects reported gun-car
rying. Both case subjects and gun-carrying control subjects reported s
elf-defense (40%) as the main reason for gun-carrying. Most case subje
cts (25 [66%]) were African Americans, but only 8 (27%) gun-carrying a
nd 27 (37%) non-gun-carrying control subjects were African Americans.
Case subjects were significantly more likely than gun-carrying control
subjects to report being African American (odds ratio [OR] = 5.3, 95%
confidence intervals [CI] = 1.6, 17.5). In crude analyses, case subje
cts were more likely than non-gun-carrying control subjects to report
adult-male unemployment among households with adult men, to foresee a
likelihood to be shot in school, to have seen a shooting, to use marij
uana, to watch television > 6 hours per day, and to be African America
n. After the effect estimates were adjusted in conditional logistic re
gression modeling, case subjects were more likely than non-gun-carryin
g control subjects to report adult-male unemployment among households
with adult men, using marijuana, and watching television > 6 hours per
day (OR = 8.6, 95% CI = 1.2, 61.2; OR = 11.7, 95% CI = 2, 70.2; and O
R = 6.5, 95% CI = 0.8, 51.9, respectively). Gun-carrying control subje
cts were significantly more likely than non-gun-carrying control subje
cts to report their school not safe, having seen a shooting, using mar
ijuana, and having fired a gun (OR = 9, 35% CI = 1, 82.1; OR = 7, 95%
CI = 1.3, 38.2; OR = 6.8, 95% CI = 1.8, 25.5; and OR = 17, 95% CI = 1.
8, 156.6, respectively). We found that gun-carrying was very common, a
nd that adolescent youths who carry guns were more likely to have fami
liarity with guns and experience with or perception of an unsafe envir
onment. Together, these lead to the conclusion that gun-carrying is a
common response of youths who live in a risky environment, who do not
have the social support to learn how to deal effectively with that ris
k, and who have access to guns, which they think may provide them with
some protection.