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Factors associated with quit attempts and smoking cessation in Brazil: findings from the International Tobacco Control Brazil Survey
| 1 | Brazilian National Cancer Institute, Prevention and Surveillance Coordination, Brazil |
| 2 | University of South Carolina, Department of Health Promotion, Education & Behavior, United States of America |
| 3 | Cancer Foundation, Health Promotion, Brazil |
| 4 | Brazilian National Cancer Institute, Clinical Research Division and Stricto Sensu Post-Graduation Program in Oncology, Brazil |
| 5 | University of Waterloo, Department of Psychology and School of Public Health and Health Systems, Canada |
| 6 | Ontario Institute for Cancer Research, Canada |
Publication date: 2018-03-01
Tob. Induc. Dis. 2018;16(Suppl 1):A343
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Download abstract book (PDF)ABSTRACT
Background:
In Brazil, the treatment of tobacco dependence is available at no cost. This study aimed to identify factors associated with attempting to quit and of successful smoking cessation in a population-based sample of Brazilian smokers.
Methods:
Data came from the first two waves of the International Tobacco Control (ITC) Brazil Survey, conducted in 2009 and 2012/2013 in three cities: Rio de Janeiro, São Paulo, and Porto Alegre. Prospective cohort data were collected from 488 adults (≥18 years) who smoked at Wave 1 who were resurveyed at Wave 2. Crude and adjusted relative risks (RR) for two outcomes (making a quit attempt between Wave 1 and Wave 2 and successfully quitting by Wave 2) were estimated. Multivariable multilevel logistic regression models were used, whereby variables were added to the models in a series of blocks.
Results:
Nearly two-thirds (65.6%) of smokers attempted to quit between waves, and 23.4% had quit at Wave 2. Intention to quit smoking at Wave 1 was the only variable associated with attempt to quit by Wave 2 (OR=2.85; 95%CI 1.64-4.94; p< 0.001). Smokers of higher socioeconomic status (ORhigh versus low=1.80; 95%CI 1.05-3.10; p=0.03) and lower nicotine dependence (ORlow HSI versus high HSI=1.94; 95%CI 1.10-3.43; p=0.02) were more likely to successfully quit. The presence of another adult smoker at home was negatively related to successful quitting (OR=0.50; 95%CI 0.26-0.94; p= 0.03).
Conclusions:
These results are generally consistent with prior research and have potential to inform governmental interventions to promote tobacco cessation, particularly among disadvantaged groups.
In Brazil, the treatment of tobacco dependence is available at no cost. This study aimed to identify factors associated with attempting to quit and of successful smoking cessation in a population-based sample of Brazilian smokers.
Methods:
Data came from the first two waves of the International Tobacco Control (ITC) Brazil Survey, conducted in 2009 and 2012/2013 in three cities: Rio de Janeiro, São Paulo, and Porto Alegre. Prospective cohort data were collected from 488 adults (≥18 years) who smoked at Wave 1 who were resurveyed at Wave 2. Crude and adjusted relative risks (RR) for two outcomes (making a quit attempt between Wave 1 and Wave 2 and successfully quitting by Wave 2) were estimated. Multivariable multilevel logistic regression models were used, whereby variables were added to the models in a series of blocks.
Results:
Nearly two-thirds (65.6%) of smokers attempted to quit between waves, and 23.4% had quit at Wave 2. Intention to quit smoking at Wave 1 was the only variable associated with attempt to quit by Wave 2 (OR=2.85; 95%CI 1.64-4.94; p< 0.001). Smokers of higher socioeconomic status (ORhigh versus low=1.80; 95%CI 1.05-3.10; p=0.03) and lower nicotine dependence (ORlow HSI versus high HSI=1.94; 95%CI 1.10-3.43; p=0.02) were more likely to successfully quit. The presence of another adult smoker at home was negatively related to successful quitting (OR=0.50; 95%CI 0.26-0.94; p= 0.03).
Conclusions:
These results are generally consistent with prior research and have potential to inform governmental interventions to promote tobacco cessation, particularly among disadvantaged groups.
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