This cross-sectional study was undertaken to assess the occurrence of
conventional cardiovascular risk factors in Estonian school children a
fter the socioeconomic changes of the early 1990s. A total of 1018 9-,
12- and 15-y-old randomly selected children were studied for lipid an
d Lipoprotein profiles, blood pressure, weight, height, regular smokin
g, physical activity and family history of premature cardiovascular di
sease. In 11-24 % of the children, total cholesterol levels were at or
above the risk cut-off of 5.2 mmol l(-1), 3-5% of the children were c
onsidered to be obese and 6-12% had blood pressure higher than the age
-and gender-specific 95th percentile of height. Of the 15-y-old girls
and boys, 1% and 10%, respectively, admitted being daily smokers. Five
percent of girls and 20% of boys smoked at least once a week. Ten to
18% of children reported little physical activity. According to age gr
oups, 17-25% of the children had a family history of premature cardiov
ascular disease. The occurrence of three or more risk factors simultan
eously characterized only the older age group, in which 2.3% of girls
and 3.5% of boys exhibited clustering of potential cardiovascular risk
factors. Our findings showed a relatively low frequency of obesity an
d low mean blood lipid levels with a high proportion of smokers among
children in late puberty, implying that preventive efforts should focu
s on pubertal children to prevent adverse health behaviour.