Cigarette Smoking, Smoking Cessation, and Heart Failure Subtypes: Insights From the Jackson Heart Study.

backgroundCigarette smoking has been associated with incident heart failure (HF). However, the association between cigarette smoking and smoking cessation with HF subtypes has not been well elucidated, particularly among Black people. METHODS AND

resultsWe investigated 4189 (never smoker n=2934, former smoker n=761, current smoker n=464) Black participants (mean age 54 years, 64% women) without a history of HF or coronary heart disease at baseline in the Jackson Heart Study. We examined the association of cigarette smoking with incident HF hospitalization and HF subtypes (HF with preserved ejection fraction and HF with reduced ejection fraction). After adjustment for confounding factors, current smoking was associated with incident HF (both subtypes) compared with never smoking. Smoking intensity among those who identified as currently smoking and smoking burden among those who ever smoked were associated with higher incidence of HF with preserved ejection fraction compared with never smoking. Lung function evaluated by spirometry at baseline did not significantly influence these associations. The risk of developing HF decreased with more years after smoking cessation, and more than 20 years of smoking cessation were required to reach a risk comparable to that of never smoking.

conclusionsSmoking cigarettes was associated with developing both subtypes of HF and it was independent from the influences on baseline lung function. Long-term smoking cessation is necessary to prevent the onset of HF in people who smoke cigarettes.