[Sexual abuse of children--a public health problem?].

Owing to variation in the reported prevalences of sexual abuse of children, international publications were reviewed to analyse the definitions and other criteria used. Reported prevalences varied from 4 to 67 per cent, the variation being due, among other things, to inconsistency in the definitions used. By some of the investigators sexual acts without actual physical contact between the offender and the victim had been included in the category, exhibitionism. Approximately half of the reported experiences were isolated events. Future research in this field will require greater conformity in the definitions and criteria used.