Birckmayer J, Hemenway D
Association for the Study and Development of Community, Gaithersburg, MD, USA.
Suicide Life Threat Behav. 2001 Fall;31(3):303-10. doi: 10.1521/suli.31.3.303.24243.
The effect of firearm availability on suicide may differ among age groups. We used regression analysis to examine the relationship between suicide rates and household firearm ownership for four age groups in the nine census regions from 1979 to 1994, adjusting for regional divorce rates, education, unemployment, and urbanicity. Results showed that firearm ownership levels are correlated with suicide rates among 15- to 24-year-olds and 65- to 84-year-olds, but not among 25-to 64-year-olds. The findings suggest that if the relationship is causal, a 10% fall in regional firearm ownership levels would lead to a 3.0% decrease in suicide rates.
枪支可得性对自杀的影响可能因年龄组而异。我们运用回归分析，研究了1979年至1994年九个普查地区四个年龄组的自杀率与家庭枪支拥有情况之间的关系，并对地区离婚率、教育程度、失业率和城市化程度进行了调整。结果显示，枪支拥有水平与15至24岁以及65至84岁人群的自杀率相关，但与25至64岁人群的自杀率无关。研究结果表明，如果这种关系是因果关系，那么地区枪支拥有水平下降10%将导致自杀率下降3.0%。
