Quitting Smoking is the Best Way to Improve Your Cardiovascular Health

Switching to noncombustible nicotine or tobacco product (NNTP) reduces the risk of cardiovascular disease (CVD) in cigarette smokers, but quitting completely reduces the risk the most, according to a study.

Quitting Smoking is the Best Way to Improve Your Cardiovascular Health
Photo: Quitting Smoking | InStyleHealth


There were 5,159,538 adult men in the research, with 1,457,602 (28.3%) never smoking. They were all subjected to health screening examinations from the Korean National Health Insurance Service database throughout the first (2014–2015) and second (2018) health screening periods.

1,541,012 (29.9%) of men who smoked used only combustible cigarettes (CC), 445,885 (8.6%) used both CC and NNTP, 424,601 (8.2%) were recent CC quitters without NNTP use, 39,287 (1.0%) were recent CC quitters with NNTP use, 1,238,318 (24.0%) were long-term (>five years) CC quitters without NNTP use, and 12,833 (0.2 percent) were long-term CC quitters with NNTP use.

Continuous CC-only smokers had the highest CVD risk based on changes in CC and NNTP use habits. Both CC and NNTP use (adjusted hazard ratio [aHR], 0.83, 95 percent confidence interval [CI], 0.79–0.88) and switching to NNTP use only (recent CC quitters with NNTP use: aHR, 0.81, 95 percent confidence interval [CI], 0.78–0.84) were associated with a lower risk than exclusive and continuous CC smoking.

Following propensity score matching, recent CC quitters with NNTP usage had the highest CVD risk (aHR, 1.31, 95 percent CI, 1.01–1.70) compared to recent CC quitters without NNTP use. Long-term CC quitters who used NNTP had a greater CVD risk (aHR, 1.70, 95 percent CI, 1.07–2.72) than long-term CC quitters who did not use NNTP.

 

Source: Circulation 2021;144:1528-1538

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