Association Between Smoking…
Association Between Smoking, Smoking Cessation, and Mortality by Race, Ethnicity, and Sex Among US Adults Thomson B, Emberson J, Lacey B, et al. JAMA Netw Open. 24 Oct 2022;5(10): e2231480. “The all-cause mortality rate ratio (RR) for current vs never smoking was 2.80 (95% CI, 2.73-2.88) overall. The RRs were similar by sex but varied by race and ethnicity…. In this prospective cohort study of over 550,000 between 1997 and 2018, among men and women from diverse racial and ethnic groups, current smoking was associated with at least twice the all-cause mortality rate of never smoking. Quitting smoking, particularly at younger ages (before 45), was associated with substantial reductions in the relative excess mortality associated with continued smoking.” https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2797597
Comment: Although racial and ethnic differences changed mortality slightly, the most significant improvement came if smokers quit smoking before age 45. Their mortality rate ratio for all sex, racial and ethnic groups was about 1.15, only 15% above that of nonsmokers in this cohort.
S. Hamann
