Smoking status also was associated with higher mean levels of brain natriuretic peptide, as were smoking intensity and burden (P less than 0.05 for all three comparisons), data show.
While cigarette smoking is a well-known risk factor for cardiovascular disease, Dr. Kamimura and coauthors said the influences on cardiac structure and function may not be fully appreciated because of the strong association with coronary heart disease, a major cause of heart failure.
“These relationships were significant after adjustment for coronary heart disease, suggesting mechanisms beyond atherosclerosis probably contribute to myocardial dysfunction and increased risk of heart failure in smokers,” they wrote in a discussion of the results.
Authors reported that they had no conflicts of interest related to the study. The Jackson Heart Study is supported by Jackson (Miss.) State University, Tougaloo College, and the University of Mississippi Medical Center, all in Jackson, contracts from the National Heart, Lung, and Blood Institute and the National Institute for Minority Health and Health Disparities. This study was supported by the NHLBI. One author has also received support from the National Institute of Diabetes and Digestive and Kidney Diseases and The National Institute of General Medical Sciences.
SOURCE: Kamimura D et al. Circulation. 2018. doi: 10.1161/CIRCULATIONAHA.117.031912.