Long-Term Mental Health Effects of the Chernobyl Disaster: An Epidemiologic Survey in Two Former Soviet Regions

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Abstract
This study assessed the long-term mental health effects of the nuclear accident at Chernobyl. Two population samples (N = 3,044), one from the Gomel region, close to the accident site, and one from Tver, 500 miles away, were studied 6 1/2 years after the event with the use of a variety of self-report questionnaires and a standardized psychiatric interview. The prevalence of psychological distress and DSM-III-R psychiatric disorders was exceptionally high in both regions. Scores on the self-report scales were consistently higher in the exposed region; however, a higher risk of DSM-III-R psychiatric disorders could be demonstrated only among women with children under 18 years of age in the exposed region. A substantial long-term mental health effect of the Chernobyl incident was demonstrated, mainly at a subclinical level.