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Multicenter Study
. 2006 Mar:188:231-6.
doi: 10.1192/bjp.188.3.231.

Alcohol consumption and suicide among middle-aged men in Japan

Tatsuo Akechi  1 , Motoki Iwasaki, Yosuke Uchitomi, Shoichiro Tsugane
Affiliations
Multicenter Study

Alcohol consumption and suicide among middle-aged men in Japan

Tatsuo Akechi et al. Br J Psychiatry. 2006 Mar.

Abstract

Background: Few studies have investigated large population-based cohorts for an association between alcohol consumption and suicide.

Aims: To investigate the possible association between alcohol intake and suicide.

Method: We used nationwide population-based cohort data from the Japan Public Health Centre-Based Prospective Study cohort. A total of 43 383 men aged 40-69 years participated. Death from suicide was defined according to ICD-10 as codes X60-X84.

Results: During the 367817 person-years of follow-up, there were 168 suicides. Compared with occasional drinkers, the pooled multivariate relative risk (RR; with 95% CI) of suicide for non-drinkers and regular heavy drinkers was 2.3 (1.2-4.6) and 2.3 (1.2-4.7) respectively. The RR increased with the amount of alcohol consumed (P for trend=0.004).

Conclusions: There is a U-shaped association between alcohol consumption and subsequent suicide.

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