[Mean values and distribution of the blood lipid level in men and women aged 20 to 69 (an epidemiological study)].

The mean values of blood plasma lipids were studied in two age groups (20 to 29 years and 60 to 69 years) from a randomized sample of 1238 men and 1247 women. The levels of the total cholesterol, alpha-cholesterol and Tg were studied and compared according to the mean values in each age group. The cut-off points of percentile distribution of the upper 10% for the total cholesterol and the magnitude of the lower 10% decile for alpha-cholesterol were determined.