Prevalence of arterial hypotension with a poor prognosis in populations of the Russian Federation and the United States of America

Abstract

Aim. To study the prevalence of hypotension (HoTN) with an unfavorable prognosis in populations of the Russian Federation and the United States of America in a thirty-year perspective.Material and methods. We used data from Russian population-based studies performed in 1975-1982 at the now-familiar National Medical Research Center for Therapy and Preventive Medicine, and the study Epidemiology of Cardiovascular Diseases and their Risk Factors in Regions of Russian Federation (ESSE-RF) in 2012-2014. A comparison was made with data from studies of US population of the National Health and Nutrition Examination Survey (NHANES): NHANES II (1976-1980) and Continuous NHANES (2007-2012). Age, sex, systolic and diastolic blood pressure were analyzed. The proportion of persons with HoTN (prevalence) was calculated in men and women of five age groups using the original HoTN criterion. Results. We used the previously developed criterion of HoTN with an unfavorable prognosis: for Russian populations, the mean dynamic pressure is <76 and <72 mm Hg, respectively. The prevalence of HoTN in modern populations was 0,1±0,5% in Russia and 6,0±8,7% in the USA (confidence interval for significance level P=0,95). For 30 years, the prevalence of HoTN in Russia according to this criterion has not changed, while in the USA it has increased both in men (on average 3 times) and in women (2,5 times).Conclusion. The prevalence of unfavorable HoTN in the US adult population is many times higher than in Russia over the entire analyzed period of time, while over 30 years in the US it has increased by 2,5-3 times.