[Clinical estimation of coronary risk factors with special reference to coronary arteriographic findings].

The relationship between coronary risk factors and the severity of coronary artery stenosis (coronary score: CS) was estimated in 225 male subjects (aged 29-82 years, median 60 years old) who had undergone coronary arteriography for suspected coronary heart disease. CS was positively related to age, and levels of fasting blood sugar, uric acid, total cholesterol, low density lipoprotein cholesterol, and apolipoprotein B. Alcohol consumption, apolipoprotein AI and AII levels were inversely correlated to CS. Although, the level of CS was significantly higher in diabetics and hypertensives than in non-diabetics and non-hypertensives, the difference of CS level between diabetics and non-diabetics was more remarkable than that between hypertensives and non-hypertensives. Furthermore the ratio of Apo-B/Apo-AI was the most sensitive index of coronary artery stenosis rather than conventional atherogenic indices such as (TC-HDL-C)/HDL-C. Correlation between CS and the ratio of Apo-B/Apo-AI was positively and closely associated with aging, and this positive relationship was observed even in non-drinkers, heavier drinkers, non-diabetics and non-hypertensives. The reweighted least squares based on the least median of squares regression analysis indicated that about 27% of the variation in CS could be accounted for by age, complication of diabetes mellitus, complication of hypertension and the ratio of Apo-B/Apo-AI. These results indicate that the ratio of Apo-B/Apo-AI is a more sensitive parameter of the severity of coronary artery stenosis than any other atherogenic index. Further, aging, complication of diabetes mellitus, complication of hypertension and an increased level of the ratio of Apo-B/Apo-AI were responsible factors for the severity of coronary arteriosclerosis in male subjects.