Cigarette smoking is an important risk factor for heart failure in blacks, according to results of an investigation of patients in the Jackson Heart Study.
Current smoking among blacks was associated with higher mean left ventricular (LV) mass and lower mean LV systolic function, even after adjustment for confounding factors, authors of the analysis reported in the journal.
While blacks are known to have a higher incidence of heart failure than do whites, Hispanics, and Asians, this is believed to be the first prospective study of a large black cohort demonstrating a dose-response relationship between smoking and incident heart failure.
“Smoking cessation may be a potential strategy to attenuate the higher rate of heart failure in blacks,” wrote Dr. Kamimura and coauthors.
The published analysis included data on 4,129 participants in the Jackson Heart Study, a large, prospective, community-based observational study investigating cardiovascular risk factors in blacks.
That group, which was 63% female, included 503 current smokers, 742 former smokers, and 2,884 individuals who had never smoked.