Patients with smoking-related cancers often question the utility of quitting. After all, isn’t the cat out of the bag? A prospective cohort study suggests every day without smoking counts. When matched stage for stage, the amount of time since smoking cessation was correlated with longer survival following treatment for lung cancer, thought to be due to both a lower risk of lung cancer death as well as lower all-cause mortality. | Wang, JAMA Netw Open 2023
