期刊论文详细信息
JOURNAL OF AFFECTIVE DISORDERS 卷:135
Seasonality of suicide in Shandong China, 1991-2009: Associations with gender, age, area and methods of suicide
Article
Sun, Jiandong1,2  Guo, Xiaolei1  Ma, Jixiang1  Zhang, Jiyu1  Jia, Cunxian3  Xu, Aiqiang1,3 
[1] CDC, Shandong Prov Ctr Dis Control & Prevent, Jinan 250014, Shandong, Peoples R China
[2] Queensland Univ Technol, Sch Publ Hlth, Brisbane, Qld 4001, Australia
[3] Shandong Univ, Sch Publ Hlth, Jinan, Peoples R China
关键词: Suicide;    Seasonality;    Method of suicide;    China;   
DOI  :  10.1016/j.jad.2011.08.008
来源: Elsevier
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【 摘 要 】

Backgrounds: Whether suicide in China has significant seasonal variations is unclear. The aim of this study is to examine the seasonality of suicide in Shandong China and to assess the associations of suicide seasonality with gender, residence, age and methods of suicide. Methods: Three types of tests (Chi-square, Edwards' T and Roger's Log method) were used to detect the seasonality of the suicide data extracted from the official mortality data of Shandong Disease Surveillance Point (DSP) system. Peak/low ratios (PLRs) and 95% confidence intervals (CIs) were calculated to indicate the magnitude of seasonality. Results: A statistically significant seasonality with a single peak in suicide rates in spring and early summer, and a dip in winter was observed, which remained relatively consistent over years. Regardless of gender, suicide seasonality was more pronounced in rural areas, younger age groups and for non-violent methods, in particular, self-poisoning by pesticide. Conclusions: There are statistically significant seasonal variations of completed suicide for both men and women in Shandong, China. Differences exist between residence (urban/rural), age groups and suicide methods. Results appear to support a sociological explanation of suicide seasonality. (C) 2011 Elsevier B.V. All rights reserved.

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