Introduction: Smoking trends in Italy have been addressed mainly by repeated cross-sectional surveys or retrospective studies. objective: To prospectively assess cumulative incidence and determinants of smoking cessation among Italian smokers during the last decade. Methods: In the frame of the Italian Study on Asthma in Young Adults (ISAYA) and the Italian Study on the Incidence of Asthma (ISIA), 1812 current smokers aged 20-53 years were identified in 1998 – 2001 in 2 study centres (Verona and Sassari). These subjects were contacted again in 2007-2009 to answer a screening questionnaire and 980 completed the survey. Of note response percentage (54.1%) in current smokers was significantly lower than that recorded among never and past smokers (64.1% and 63.0% respectively). Logistic regression model was used in order to study the determinants of smoking cessation. Results: After a follow-up period of 9.2±0.8 years (mean±SD), 274 subjects (30.5%) had stopped smoking. This proportion was similar in both sexes (30.0% in men, 28.8% in women) and was not significantly affected by occupation. However, higher quit ratio was found in the younger age group (aged 35 years or younger) than the older age group (more than 35 years) (33.8% and 26.9% respectively, p=0.027). In respect to smoking intensity, heavy smokers who smoked 11-40 cigarettes/day at baseline were less likely to quit smoking than people smoking 1-10 cigarettes/day (23.6% vs. 36.9%, p<0.001). Asthma at baseline was associated with an increase in smoking cessation (45.4% vs. 30.0%), while nasal allergies and chronic bronchitis were not. Only smoking intensity was a significant predictor of smoking cessation in the multivariable logistic regression model. Conclusion: About 30% of current smokers had quit smoking over a ten-year period. Light smokers were more likely to stop smoking than heavy smokers.
Smoking cessation and its determinants in Italy in the last decade: a follow-up study
Nguyen, Thi Thanh Giang;VERLATO, Giuseppe;ACCORDINI, Simone;Marchetti, PIerpaolo;DE MARCO, Roberto
2013-01-01
Abstract
Introduction: Smoking trends in Italy have been addressed mainly by repeated cross-sectional surveys or retrospective studies. objective: To prospectively assess cumulative incidence and determinants of smoking cessation among Italian smokers during the last decade. Methods: In the frame of the Italian Study on Asthma in Young Adults (ISAYA) and the Italian Study on the Incidence of Asthma (ISIA), 1812 current smokers aged 20-53 years were identified in 1998 – 2001 in 2 study centres (Verona and Sassari). These subjects were contacted again in 2007-2009 to answer a screening questionnaire and 980 completed the survey. Of note response percentage (54.1%) in current smokers was significantly lower than that recorded among never and past smokers (64.1% and 63.0% respectively). Logistic regression model was used in order to study the determinants of smoking cessation. Results: After a follow-up period of 9.2±0.8 years (mean±SD), 274 subjects (30.5%) had stopped smoking. This proportion was similar in both sexes (30.0% in men, 28.8% in women) and was not significantly affected by occupation. However, higher quit ratio was found in the younger age group (aged 35 years or younger) than the older age group (more than 35 years) (33.8% and 26.9% respectively, p=0.027). In respect to smoking intensity, heavy smokers who smoked 11-40 cigarettes/day at baseline were less likely to quit smoking than people smoking 1-10 cigarettes/day (23.6% vs. 36.9%, p<0.001). Asthma at baseline was associated with an increase in smoking cessation (45.4% vs. 30.0%), while nasal allergies and chronic bronchitis were not. Only smoking intensity was a significant predictor of smoking cessation in the multivariable logistic regression model. Conclusion: About 30% of current smokers had quit smoking over a ten-year period. Light smokers were more likely to stop smoking than heavy smokers.
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