Suicide rates in evacuation areas after the Fukushima Daiichi nuclear disaster: A 5-year follow-up study in Fukushima prefecture

Résumé

textbfBackground: Associations between nuclear disasters and suicide have been examined to a limited extent. textbfAim: To clarify the suicide rates in evacuation areas after the nuclear disaster in Fukushima, which occurred in March 2011. textbfMethod: This descriptive study used monthly data from vital statistics between March 2009 and December 2015. Suicide rates in areas to which evacuation orders had been issued, requiring across-the-board, compulsory evacuation of residents from the entire or part of municipalities, were obtained and compared with the national average. textbfResults: Male suicide rates in evacuation areas increased significantly immediately after the disaster, and then began to increase again 4 years after the disaster. Female suicide rates declined slightly during the first year and then increased significantly over the subsequent 3-year period. Moreover, male rates in areas where evacuation orders were issued for the total area declined over the course of approximately 2 years, but then began to increase thereafter. Analysis by age revealed postdisaster male rates in evacuation areas decreased for those aged 50–69 years and increased for those aged ≤ 29 years and ≥ 70 years. textbfLimitations: The number of suicides among females and the female population in the evacuation area was small. textbfConclusion: Our findings suggest the need to keep in mind that, when providing post-disaster mental health services, suicide rates can eventually increase even if they initially decrease. JAPON ASIE GENRE HOMME FEMME SUICIDE-COMPLÉTÉ PRÉVALENCE DÉSASTRE