Abstract: This study aims to estimate the number of life years gained with quitting smoking in Italian smokers of both sexes, by number of cigarettes smoked per day (cig/day) and age at cessation. All-cause mortality tables by age, sex and smoking status were computed, based on Italian smoking data, and the survival curves of former and current smokers were compared. The more cig/day a man/woman smokes, and the younger his/her age of quitting smoking, the more years of life he/she gains with cessation. In fact, cessation at age 30, 40, 50, or 60 years gained, respectively, about 7, 7, 6, or 5, and 5, 5, 4, or 3 years of life, respectively, for men and women that smoked 10–19 cig/day. The gain in life years was higher for heavy smokers (9 years for >20 cig/day) and lower for light smokers (4 years for 1–9 cig/day). Consistently with prospective studies conducted worldwide, quitting smoking increases life expectancy regardless of age, gender and number of cig/day. The estimates of the number of years of life that could be gained by quitting smoking, when computed specifically for a single smoker, could be used by physicians and health professionals to promote a quit attempt.
Keywords: smoking cessation; Italy; survival
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Carrozzi, L.; Falcone, F.; Carreras, G.; Pistelli, F.; Gorini, G.; Martini, A.; Viegi, G. Life Gain in Italian Smokers Who Quit. Int. J. Environ. Res. Public Health 2014, 11, 2395-2406.
Carrozzi L, Falcone F, Carreras G, Pistelli F, Gorini G, Martini A, Viegi G. Life Gain in Italian Smokers Who Quit. International Journal of Environmental Research and Public Health. 2014; 11(3):2395-2406.
Carrozzi, Laura; Falcone, Franco; Carreras, Giulia; Pistelli, Francesco; Gorini, Giuseppe; Martini, Andrea; Viegi, Giovanni. 2014. "Life Gain in Italian Smokers Who Quit." Int. J. Environ. Res. Public Health 11, no. 3: 2395-2406.