“…Some studies conclude that it may improve HRQoL, 5,6 whereas others show insignificant or negative changes. 4,7,8 These inconsistent findings around the effect of smoking transition on HRQoL may be related to the process of smoking cessation, which is complicated and dependent on multiple factors (such as the number of quit attempts, the number of cigarettes, age, education, and any major health event leading to quitting). 9 In addition, it may take several years of abstinence in smokers for their HRQoL to be the same as nonsmokers.…”