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A correction was 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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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