We present epidemiological data from a multi-centre study on psychiatric sy
mptoms among 6017 8-9-year-old children representing a total annual birth c
ohort (N = 60007) in Finland. The results are based on three questionnaires
: the Rutter Parent Scale (RA2), the Rutter Teacher Scale (RB2), the Childr
en's Depression Inventory (CDI). The proportion of children that scored abo
ve the cutoff points, indicating probable psychiatric disturbance, were 11.
2% for the RA2, 13.9% for the RB2 and 6.9% for the CDI. Twenty-four percent
of the subjects scored above the cutoff point on at least one of the quest
ionnaires. Low family social status and disrupted family relations correlat
ed strongly with high rates of symptoms in the children.