对澳大利亚和新西兰自杀率季节性变化的重新审视。
A re-examination of seasonal variation in suicides in Australia and New Zealand.
作者信息
Yip P S, Chao A, Ho T P
机构信息
Department of Statistics, The University of Hong Kong, China.
出版信息
J Affect Disord. 1998 Jan;47(1-3):141-50. doi: 10.1016/s0165-0327(97)00135-3.
BACKGROUND
To examine the seasonality of suicides in Australia and New Zealand during the period 1981 to 1993.
METHODS
A chi-square test and a harmonic analysis were used to detect the seasonality of the suicide data.
RESULTS
The reduced amplitude and a smaller proportion of variance accounted for by seasonality suggested the seasonal effect on suicide is greatly diminished. The absence of biseasonal distribution of female suicides was also consistently found in the two countries. The finding was contrary to the reported results in seventies in many Western countries.
CONCLUSIONS
The change in living condition, roles of males and females and communication pattern resulted in the reduction of climatic and environment effect in the seasonality of suicides were suggested.
LIMITATIONS
The results would be better if a longer series of suicide date were available.
背景
研究1981年至1993年期间澳大利亚和新西兰自杀事件的季节性特征。
方法
采用卡方检验和谐波分析来检测自杀数据的季节性。
结果
季节性因素导致的振幅减小和方差比例降低表明，季节性对自杀的影响已大大减弱。在这两个国家还一致发现女性自杀不存在双季节性分布。这一发现与许多西方国家七十年代报道的结果相反。
结论
研究表明，生活条件、男女角色及交流模式的变化导致了自杀季节性中气候和环境影响的减少。
局限性
如果能获得更长时间段的自杀日期序列，结果会更好。
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