Prevalence of risk factors for coronary heart disease in a mountain community in northern Italy.

We performed a population survey in the Valle Sabbia mountain community, a highly industrialized area in the province of Brescia, in northern Italy, in order to estimate the prevalence of the main risk factors for coronary heart disease (CHD) among middle-aged men and women. A random sample of 1497 subjects (747 males) aged 40-59 were interviewed and underwent a physical examination. A blood sample was also taken to test total serum cholesterol. Personal histories of hypertension and CHD were given by 20.3 and 4.6% of men, and by 23 and 2.4% of women, respectively. A personal history of diabetes mellitus was reported by 5.2% of men and 4% of women. The mean values of systolic and diastolic blood pressure (SBP and DBP), total cholesterol, number of cigarettes smoked per day and BMI were, respectively: 135.1 and 84.1 mmHg, 219.2 mg/dl, 10.2 cig/day and 26.2 in men, and 136.8 and 83.9 mmHg, 214.3 mg/dl, 2.4 cig/day and 25.1 in women. Among men, 45.0% had SBP > or = 140 or DBP > or = 90, 32.3% had total cholesterol > or = 240 mg/dl, 29.3% were current smokers and 60.7% had a BMI higher than 25. Among women, 48.7% had SBP > or = 140 or DBP > or = 90, 26.0% had total cholesterol > or = 240 mg/dl, 16.8% were current smokers and 44.3% had a BMI higher than 25. When considering the prevalence of high SBP or DBP, high total cholesterol or cigarette smoking, 72.3% of men and 67.7% of women had at least one of the main risk factors for CHD, usually higher values of SBP or DBP, whereas 29.3% of men and 21.2% of women had two or more factors. Overall, prevalences of the most common CHD risk factors in this community were similar to those found in other surveys carried out in Italy in the last decade.