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  • Title: The Muscatine Cholesterol Family Study: familial aggregation of blood lipids and relationship of lipid levels to age, sex and hormone use.
    Author: Bucher KD, Schrott HG, Clarke WR, Lauer RM.
    Journal: J Chronic Dis; 1982; 35(5):375-84. PubMed ID: 7068811.
    Abstract:
    The Muscatine Cholesterol Family Study includes data on first, second and third-degree relatives of school children who have the following cholesterol levels: above the 95th percentile in two consecutive school screens, N = 53; below the 5th percentile twice, N = 45; and a random sample between the 5th and 95th percentiles twice, N = 44. For males and females not taking estrogen the relationship of cholesterol to age was the same in high, middle, and low groups, although the overall level differed. For females taking estrogen, cholesterol levels rose more quickly with age in the high group as compared to the middle and low groups. The triglyceride levels of females taking estrogen is higher at younger ages and shows no significant change with increasing age. Among first degree relatives, the cholesterol correlations are between 0.25 and 0.30. Correlations in relatives of the middle group probands are higher than those in relatives of high or low group probands, but not significantly so. Correction for ascertainment increases the correlations in the high and low groups. Among second degree relatives cholesterol correlations in all three groups are approximately 0.20. There is negligible cholesterol correlation between spouses in the high and low groups, while the middle group spouse correlation is significantly greater than zero. Categorical analysis suggests the effect of the proband's cholesterol level is seen most upon the cholesterol level of parents, with siblings and second-degree relatives being less similarly affected.
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