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Suicide rates in Shandong, China, 1991–2010 : rapid decrease in rural rates and steady increase in male–female ratio

Sun, Jiandong, Guo, Xiaolei , Zhang, Jiyu , Jia, Cunxian , & Xu, Aiqiang (2013) Suicide rates in Shandong, China, 1991–2010 : rapid decrease in rural rates and steady increase in male–female ratio. Journal of Affective Disorders, 146(3), pp. 361-368.

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    Abstract

    Background China has one of the highest suicide rates in the world; however, the recent trends in suicide have not been adequately studied. This study aimed to examine the potential changes in the rates and characteristics in a Chinese population.

    Methods Data on suicide deaths in 1991–2010 were extracted from the Shandong Disease Surveillance Point (DSP) mortality dataset based on ICD-10 codes. The temporal trend in age-adjusted suicide rates for each subpopulation was tested using log-linear Poisson regression analysis.

    Results From 1991 to 2010, there was a marked decrease in the overall suicide rate in Shandong, with an average reduction of 8% per year. The decrease trend was stronger in rural than in urban areas and more evident in females than in males. Similar decreases were observed for all age groups. Pesticide ingestion and hanging remained the top two methods for suicide.

    Limitations There are likely quality concerns in the morality data, such as underreporting and misclassification, as well as low accuracy in determining the underlying causes of deaths. The representativeness of the DSP system may also be problematic due to the rapid changes in economy and demography.

    Conclusions Completed suicides in Shandong have sharply declined over the past 20 years. Higher rates in females versus males and in rural versus urban areas, which were previously considered to be distinguishing features of suicide in China, are becoming less pronounced.

    Impact and interest:

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    ID Code: 54216
    Item Type: Journal Article
    Keywords: Suicide, Mortality, Trend, Gender ratio, China
    DOI: 10.1016/j.jad.2012.09.020
    ISSN: 0165-0327
    Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Epidemiology (111706)
    Divisions: Current > QUT Faculties and Divisions > Faculty of Health
    Current > Institutes > Institute of Health and Biomedical Innovation
    Current > Schools > School of Public Health & Social Work
    Copyright Owner: Copyright 2012 Elsevier
    Copyright Statement: This is the author’s version of a work that was accepted for publication in Journal of Affective Disorders. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Affective Disorders, [VOL 146, ISSUE 3, (2013)] DOI: 10.1016/j.jad.2012.09.020
    Deposited On: 18 Oct 2012 11:59
    Last Modified: 22 Sep 2013 06:06

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