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Correction published on 5 June 2014, see Int. J. Environ. Res. Public Health 2014, 11(6), 5970-5974.

Int. J. Environ. Res. Public Health 2014, 11(3), 2395-2406; doi:10.3390/ijerph110302395
Article

Life Gain in Italian Smokers Who Quit

1,2,†
,
3,†
,
4,†,* , 1,2,†
,
4,†
,
4,†
 and
2,5,†
1 Pulmonary Unit, CardioThoracic and Vascular Department, University Hospital of Pisa, via Paradisa 2, Cisanello, Pisa 56124, Italy 2 Unit of Pulmonary Environmental Epidemiology, Institute of Clinical Physiology, Italian National Research Council (IFC-CNR), via Trieste 41, Pisa 56126, Italy 3 Italian Association of Hospital Pulmonologists (AIPO) Research,Via Antonio Da Recanate, 2, Milan 20124, Italy 4 Unit of Environmental and Occupational Epidemiology, Cancer Prevention and Research Institute (ISPO), via delle Oblate 2, Florence 50139, Italy 5 Institute of Biomedicine and Molecular Immunology, Italian National Research Council (IBIM-CNR), via Ugo La Malfa 153, Palermo 90146, Italy These authors contributed equally to this work.
* Author to whom correspondence should be addressed.
Received: 8 January 2014 / Revised: 13 February 2014 / Accepted: 13 February 2014 / Published: 26 February 2014
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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 smoking cessation; Italy; survival
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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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.

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