This study aimed to investigate the potential differential effects of state-level firearm laws on black and white populations. Using a panel design, authors examined the relationship between state firearm laws and homicide victimization rates among white people and black people in 39 states during the period between 1991 and 2016. Authors modeled homicide rates using linear regression with year and state fixed effects and controlled for a range of time-varying, state-level factors. Results showed that universal background check laws and permit requirement laws were associated with lower homicide rates among both white and black populations, and "shall issue" laws were associated with higher homicide rates among both white and black populations. Laws that prohibit firearm possession among people convicted of a violent misdemeanor or require relinquishment of firearms by people with a domestic violence restraining order were associated with lower black homicide rates, but not with white homicide rates. Author identification of heterogeneity in the associations between state firearm laws and homicide rates among different racial groups has implications for reducing racial health disparities.

中文翻译：

---

1991-2016年，美国枪支法律对美国黑人和白人人口中凶杀率的影响。

这项研究旨在调查州级枪支法律对黑人和白人人口的潜在差异影响。使用面板设计，作者研究了1991年至2016年期间39个州的白人和黑人中州枪支法律与凶杀受害率之间的关系。作者使用具有年份和州固定效应的线性回归对凶杀率进行建模，并控制了一系列时变的状态级别因素。结果表明，普遍的背景调查法和许可要求法与白人和黑人人口中较低的凶杀率相关，而“应发出”法与白人和黑人人口中较高的凶杀率相关。禁止在因轻罪而被定罪的人中拥有枪支或要求具有家庭暴力禁制令的人放弃枪支的法律与较低的黑色凶杀率相关，而与白色凶杀率则不相关。作者指出，国家枪支法律与不同种族之间的凶杀率之间的关联存在异质性，对减少种族健康差异具有影响。