Coordenação de Ensino, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil.
Department of Health Promotion, Education & Behavior, University of South Carolina, Columbia, USA.
Public Health. 2019 Sep;174:127-133. doi: 10.1016/j.puhe.2019.06.004. Epub 2019 Jul 27.
This study aimed to identify factors associated with attempting to quit and successful smoking cessation in a population-based sample of Brazilian smokers.
This is a prospective cohort study.
Data came from the first two waves of the International Tobacco Control Brazil Survey, conducted in 2009 and 2012/2013 in three cities: Rio de Janeiro, São Paulo, and Porto Alegre. Data were collected from 488 adults (aged ≥18 years) who smoked at Wave 1 and who were resurveyed at Wave 2. Crude and adjusted relative risks 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.
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 (odds ratio [OR] = 2.85; 95% confidence interval [CI] 1.64-4.94; P < 0.001). Smokers of higher socio-economic status (OR high versus low = 1.80; 95% CI 1.05-3.10; P = 0.03) and lower nicotine dependence (OR low Heaviness of Smoking Index [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).
These results are generally consistent with prior research and have potential to inform governmental interventions to promote tobacco cessation, particularly among disadvantaged groups.
本研究旨在确定与巴西吸烟者尝试戒烟和成功戒烟相关的因素。
这是一项前瞻性队列研究。
数据来自于 2009 年和 2012/2013 年在三个城市（里约热内卢、圣保罗和阿雷格里港）进行的国际烟草控制巴西调查的前两个波次。数据来自于 488 名在第 1 波次吸烟且在第 2 波次被重新调查的成年人（年龄≥18 岁）。估计了两个结果（第 1 波次至第 2 波次之间尝试戒烟和第 2 波次成功戒烟）的粗相对风险和调整后相对风险。使用多变量多水平逻辑回归模型，其中变量按系列块添加到模型中。
近三分之二（65.6%）的吸烟者在波次之间尝试戒烟，23.4%的吸烟者在第 2 波次戒烟。第 1 波次的戒烟意愿是唯一与第 2 波次尝试戒烟相关的变量（比值比[OR]为 2.85；95%置信区间[CI]为 1.64-4.94；P<0.001）。社会经济地位较高（OR 高 vs 低=1.80；95%CI 1.05-3.10；P=0.03）和尼古丁依赖程度较低（OR 低吸烟严重程度指数[HSI] vs 高 HSI=1.94；95%CI 1.10-3.43；P=0.02）的吸烟者更有可能成功戒烟。家中有另一位成年吸烟者会对成功戒烟产生负面影响（OR=0.50；95%CI 0.26-0.94；P=0.03）。
这些结果与先前的研究基本一致，有可能为促进烟草戒断的政府干预提供信息，特别是在弱势群体中。
