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  • Among middle aged men in Japan, non-drinkers and regular heavy drinkers are more likely to commit suicide than occasional drinkers

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Aetiology
Among middle aged men in Japan, non-drinkers and regular heavy drinkers are more likely to commit suicide than occasional drinkers

http://dx.doi.org/10.1136/ebmh.9.4.112

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    Akechi T, Iwasaki M, Uchitomi Y, et al. Alcohol consumption and suicide among middle-aged men in Japan. Br J Psychiatry 2006;188:231–6.OpenUrlAbstract/FREE Full Text

    Q Is there an association between alcohol consumption and suicide in middle aged men in Japan?

    METHODS

    Embedded ImageDesign:

    Population based prospective cohort study (pooled results from two individual cohorts).

    Embedded ImageFollow up period:

    8.5 years (mean follow up).

    Embedded ImageSetting:

    Twenty seven municipalities in Japan from 1990 to 2000 (cohort I recruited in 1990, cohort II recruited in 1993).

    Embedded ImagePeople:

    43 383 men aged 40–69 registered with one of nine public health centres. Exclusions: people who did not return the baseline questionnaire and people for whom information on alcohol consumption was incomplete.

    Embedded ImageRisk factors:

    Alcohol consumption (assessed by self-report questionnaire). People were categorised as non-drinkers, occasional drinkers (1–3 days/month) and regular drinkers (⩾1 days/week). Regular drinkers were subdivided by weekly ethanol intake (<138 g/week, 138–251 g/week, 252–413 g/week, and ⩾414 g/week). Cohort II were also categorised as never drinkers, ex-drinkers, or current …

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    Footnotes

    • For correspondence: Dr Shoichiro Tsugane, Epidemiology and Prevention Division, Research Centre for Cancer Prevention and Screening, National Cancer Centre, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; stsugane{at}ncc.go.jp

    • Sources of funding: Cancer Research and Second-Term Comprehensive Ten-Year Strategy for Cancer Control from the Ministry of Labour, Health and Welfare of Japan.