McNabb S J, Farley T A, Powell K E, Rolka H R, Horan J M
Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Am J Prev Med. 1996 Mar-Apr;12(2):96-102.
In the majority of episodes of fatal interpersonal violence, the weapon used is a firearm. Amid frequent reports of youths carrying weapons, including firearms, we conducted a case-control study to identify risk 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, legally charged in the Jefferson Parish, Louisiana, juvenile court from January 1, 1992, through April 15, 1993. For each case, we randomly drew three age-, gender-, and school-matched control subjects from the enrollment rosters of the Jefferson Parish public schools and administered a questionnaire. The data set comprised 38 case subjects and 103 matched control subjects. Thirty (29%) control subjects reported gun-carrying. Both case subjects and gun-carrying control subjects reported self-defense (40%) as the main reason for gun-carrying. Most case subjects (25 [66%]) were African Americans, but only 8 (27%) gun-carrying and 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 subjects 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 marijuana, to watch television > 6 hours per day, and to be African American. After the effect estimates were adjusted in conditional logistic regression modeling, case subjects were more likely than non-gun-carrying 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 OR = 6.5, 95% CI = 0.8, 51.9, respectively). Gun-carrying control subjects were significantly more likely than non-gun-carrying control subjects to report their school not safe, having seen a shooting, using marijuana, and having fired a gun (OR = 9, 95% 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, and that adolescent youths who carry guns were more likely to have familiarity with guns and experience with or perception of an unsafe environment. 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 risk, and who have access to guns, which they think may provide them with some protection.
在大多数致命的人际暴力事件中,使用的武器是枪支。在频繁有青少年携带包括枪支在内的武器的报道中,我们开展了一项病例对照研究,以确定路易斯安那州杰斐逊教区青少年携带枪支被指控以及携带枪支本身的风险因素。病例定义为1992年1月1日至1993年4月15日在路易斯安那州杰斐逊教区少年法庭被合法指控携带枪支的19岁以下青少年的事件。对于每个病例,我们从杰斐逊教区公立学校的入学名册中随机抽取三名年龄、性别和学校匹配的对照对象,并发放一份问卷。数据集包括38名病例对象和103名匹配的对照对象。30名(29%)对照对象报告携带过枪支。病例对象和携带枪支的对照对象都将自卫(40%)作为携带枪支的主要原因。大多数病例对象(25名[66%])是非裔美国人,但只有8名(27%)携带枪支的对照对象和27名(37%)未携带枪支的对照对象是非裔美国人。病例对象比携带枪支的对照对象更有可能报告自己是非裔美国人(优势比[OR]=5.3,95%置信区间[CI]=1.6,17.5)。在粗略分析中,病例对象比未携带枪支的对照对象更有可能报告成年男性所在家庭中成年男性失业、预见在学校有被枪击的可能性、目睹过枪击事件、使用过大麻、每天看电视超过6小时以及是非裔美国人。在条件逻辑回归模型中对效应估计值进行调整后,病例对象比未携带枪支的对照对象更有可能报告成年男性所在家庭中成年男性失业、使用过大麻以及每天看电视超过6小时(OR分别为8.6,95%CI=1.2,61.2;OR为11.7,95%CI=2,70.2;OR为6.5,95%CI=0.8,51.9)。携带枪支的对照对象比未携带枪支的对照对象更有可能报告他们的学校不安全、目睹过枪击事件、使用过大麻以及开过枪(OR分别为9,95%CI=1,82.1;OR为7,95%CI=1.3,38.2;OR为6.8,95%CI=1.8,25.5;OR为17,95%CI=1.8,156.6)。我们发现携带枪支非常普遍,并且携带枪支的青少年更有可能熟悉枪支,有不安全环境的经历或感知。综合起来,这些得出的结论是,携带枪支是生活在危险环境中的青少年的常见反应,他们没有社会支持来学习如何有效应对这种风险,并且能够获得枪支,他们认为枪支可能会为他们提供一些保护。