Beautrais A L, Fergusson D M, Horwood L J
Canterbury Suicide Project, Christchurch School of Medicine & Health Sciences, New Zealand.
Aust N Z J Psychiatry. 2006 Mar;40(3):253-9. doi: 10.1080/j.1440-1614.2006.01782.x.
To examine the impact of introducing more restrictive firearms legislation (Amendment to the Arms Act, 1992) in New Zealand on suicides involving firearms.
National suicide data were examined for 8 years before, and 10 years following the introduction of the legislation.
After legislation, the mean annual rate of firearm-related suicides decreased by 46% for the total population (p < 0.0001), 66% for youth (15-24 years; p < 0.0001) and 39% for adults (> or = 25 years; p < 0.01). The fraction of all suicides accounted for by firearm-related suicides also reduced for all three populations (p < 0.0001). However, the introduction of firearms legislation was not associated with reductions in overall rates of suicide for all three populations.
Following the introduction of legislation restricting ownership and access to firearms, firearm-related suicides significantly decreased, particularly among youth. Overall rates of youth suicide also decreased over this time but it is not possible to determine the extent to which this was accounted for by changes in firearms legislation or other causes.
研究新西兰引入更严格的枪支立法（《1992年武器法修正案》）对涉及枪支的自杀行为的影响。
对立法实施前8年和实施后10年的全国自杀数据进行研究。
立法实施后，与枪支相关的自杀的年平均发生率在总人口中下降了46%（p<0.0001），在青少年（15 - 24岁）中下降了66%（p<0.0001），在成年人（≥25岁）中下降了39%（p<0.01）。在这三类人群中，与枪支相关的自杀在所有自杀中所占的比例也都有所下降（p<0.0001）。然而，枪支立法的引入与这三类人群总体自杀率的降低并无关联。
在引入限制枪支所有权和获取途径的立法后，与枪支相关的自杀显著减少，尤其是在青少年中。在此期间青少年总体自杀率也有所下降，但无法确定这在多大程度上是由枪支立法的变化或其他原因所致。
