Nutritional and genetic contributions to serum cholesterol concentration in a children's follow‐up study

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Abstract
In the Finnish multicentre study of cardiovascular risk in young Finns in 1980, 1983 and 1986, 2429, 2052 and 1841 9 to 18‐year‐old children and adolescents participated. In 1980, subjects of eastern origin living in the west had, despite their western diet, higher serum cholesterol concentrations than subjects both residing in and originating from the west. In males, eastern origin increased the eastlwest difference in serum cholesterol concentrations. Between 1980 and 1986 the mean serum total cholesterol of the study cohorts decreased by 5.5% and simultaneously the east/west differences in serum cholesterol concentrations disappeared in boys. The study suggests that genetic background is a separate factor determining serum total cholesterol level, but with declining serum cholesterol concentrations the effect of the genetic factor does not become manifest.