Firearm ownership in California: A latent class analysis
Firearm ownership in California: A latent class analysis
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DOI：
10.1136/injuryprev-2019-043412
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发表时间：
2020-10-01
影响因子：
3.7
通讯作者：
Wintemute, Garen J.
中科院分区：
文献类型：
--
作者：
Schleimer, Julia P.;Kravitz-Wirtz, Nicole;Wintemute, Garen J.
目的考察枪支拥有权和与枪支拥有权相关的动机和做法是否可以合理地划分为不同的类型。方法从2018年加州安全和福祉调查中获得关于枪支拥有者(n=429)的横断面数据，这是一项具有州代表性的基于网络的调查。我们使用六个自行报告的枪支拥有量指标进行了潜在类别分析：(1)拥有枪支的数量，(2)拥有枪支的类型，(3)拥有枪支的主要原因，(4)枪支储存，(5)携带上膛的手枪，(6)拥有大容量弹夹。结果我们确定了五个明显不同的枪支拥有者类别。有两类单一枪支拥有者和三类多枪支拥有者。只有一个阶层的成员(9%的车主)可能携带上了膛的手枪，并拥有大容量弹夹或攻击型武器。这一阶层的成员也可能拥有5支以上的枪支，拥有以保护他人免受伤害，并以最不安全的方式储存枪支(上膛和解锁)。结论在加州，枪支拥有者有不同的类别，所有研究的高风险行为都是由同一类别的成员不成比例地表现出来的。这种潜在的阶层结构可能有助于确定枪支拥有者的高风险群体，可以为今后关于风险评估和重点干预措施的研究提供信息，以减少枪支伤亡。
Objective To examine whether firearm ownership and ownership-related motivations and practices can be classified into reasonably distinct types. Methods Cross-sectional data on firearm owners (n=429) were obtained from the 2018 California Safety and Well-Being Survey, a state-representative web-based survey. We conducted a latent class analysis using six self-reported indicators of firearm ownership: (1) number of firearms owned, (2) types of firearms owned, (3) primary reason for firearm ownership, (4) firearm storage, (5) loaded handgun carrying and (6) high-capacity magazine ownership. Results We identified five markedly different classes of firearm ownership. There were two classes of single-firearm owners and three classes of multiple-firearm owners. Only members of one class (9% of owners) were likely to have carried a loaded handgun and to own high-capacity magazines or assault-type weapons. Members of this class were also likely to own 5+ firearms, own for protection against people, and store a firearm in the least secure manner (loaded and unlocked). Conclusion There were distinct classes of firearm ownership in California, and all higher-risk behaviours studied were exhibited disproportionately by members of a single class. This latent class structure, which may help identify higher-risk groups of firearm owners, could inform future research on risk assessment and on focused interventions to reduce firearm injury and death.