The Miyagi cohort study was a population-based, prospective cohort study of Japanese adults aged between 40 and 64 years. Between June and August 1990, 47,604 participants residing in 14 municipalities of Miyagi Prefecture, Japan, completed a questionnaire on various health-related lifestyles, including marital status. During 18 years of follow-up, 146 of the participants committed suicide. A total of 106 and 40 deaths from suicide were recorded during 344,813 and 365,524 person-years of follow-up among 20,671 men and 21,076 women, respectively. We found that marital status was significantly associated with the risk of completing suicide only in men. Among men, after multivariate adjustment, HRs in reference to married were as follows: widowed or divorced, 2.84 (95% CI: 1.37-5.90); unmarried, 1.56 (95% CI: 0.67-3.64). A significantly increased risk of suicidal death was observed among widowed or divorced men, whereas no such trend was evident for women. (宮城県内14町村の住民を対象にした前向きコホート研究において、41,747名を対象として18年間の追跡を行い、婚姻状態と自殺リスクとの関連について検討し報告した。追跡期間中に、146名の自殺が観察された。死別・離別を経験している男性に自殺死亡リスクの増加がみられたが、女性では同様の関連はみられなかった。)
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Naru Fukuchi, Masako Kakizaki, Yumi Sugawara, Fumiya Tanji, Ikue Watanabe, Akira Fukao, Ichiro Tsuji
