Suicides among 523 persons in a Swedish county with and without contact with psychiatric care.

Among 523 (350 males, 173 females) suicides in 1977-1984, subjects who had had contact with psychiatric care (PC) (63%) were compared with those who had never had such contact (NPC) (37%). The male:female ratios in the PC and NPC groups were 1.6 and 3.0, respectively. Intoxication with drugs and or alcohol was the main method of suicide among the PC subjects, and hanging and intoxication with carbon monoxide predominated among subjects of the NPC group. High percentages of divorces and widows/widowers were characteristic of both groups. Among men and women of the PC group the age groups in which the highest mean suicide rates per 100,000 were found were 45-54 and 55-64 years respectively. The corresponding age groups in the NPC group were greater than or equal to 75 and greater than or equal to 70 years. In the PC group the number of admissions to psychiatric hospitals was more than three in 55% of the subjects and more than eight in 25%. Seventy-three percent had had psychiatric contact within 6 months before the suicide. About 40% in each group had had depressive syndromes. Somatic disease of relevance to the suicides was found among 10% of the PC subjects and 20% of the NPC. About 1/4 of the subjects in both groups had expressed serious suicidal intent shortly before the suicide. The importance of information and education about suicide problems among personnel and relatives is underlined.