This article gives an account of some findings of the WHO/EURO multice
ntre study on parasuicide from the five Nordic centres: Helsinki (Finl
and), Stockholm (Sweden), and the counties of Funen (Denmark), Sor-Tro
ndelag (Norway) and Vasterbotten (Sweden). For parasuicide patients tr
eated in hospital in these five Nordic centres, the parasuicide rates
per 100,000 inhabitants per annum were 222 for women, 213 for men and
224 for both sexes combined. In all the Nordic centres except Helsinki
, women had higher parasuicide rates than men. The female/male parasui
cide ratio was 1.16 for all Nordic centres. The highest parasuicide ra
tes in the whole material were found in Helsinki, Stockholm and Funen,
and the lowest in Sor-Trondelag and Vasterbotten. The highest parasui
cide rates lay in the 30-39 age interval, i.e. the peak of parasuicide
rates was in older age groups than previously reported. Single people
, especially divorcees and those who have never been married, constitu
te a high-risk group in both sexes. The risk of parasuicide for single
men in three times that for married men in all the Nordic centres exc
ept Sor-Trondelag, where the risk is five times higher. The parasuicid
e risk for single women is twice as high as for married women except f
or women in Funen, where the risk for single and married women is almo
st equal. Exceptionally high parasuicide rates are also reported for F
innish citizens in Sweden, compared with Finns from the Helsinki centr
e. Parasuicide rates appear to be correlated with population density,
since the densely populated areas of Helsinki, Stockholm and Funen evi
nce higher parasuicide rates than the sparsely populated areas of Sor-
Trondelag and Vasterbotten.