Prevalence of smoking among adults in Ningbo City from 2018 to 2021 / 预防医学

ABSTRACT

Objective@#To analyze the prevalence of smoking among adults in Ningbo City from 2018 to 2021, so as to provide the scientific evidence for improving the tobacco control policy and evaluating the effectiveness of the tobacco control policy. @*Methods@#The permanent residents at ages of 15 to 69 years were recruited from 10 counties ( districts ) in Ningbo City using the stratified multistage random sampling method from 2018 to 2021, and subjects' demographic features, smoking and secondhand smoke exposure were collected using the National Questionnaire for Surveillance on Healthy Literacy and Tobacco Epidemic in Chinese Residents. All data were standardized to the Sixth National Population Census in 2010. The prevalence of smoking, smoking cessation and exposure to secondhand smoke and the trends for the prevalence were estimated among adults in Ningbo City from 2018 to 2021.@*Results@#A total of 6 581, 6 340, 6 380 and 6 400 valid questionnaires were recovered from 2018 to 2021, and the effective recovery rates were 99.20%, 97.46%, 97.76% and 98.02%, respectively. The respondents had male to female ratios of 1∶1.05, 1∶1.07, 1∶1.05 and 1∶1.14, and had urban-rural population ratios of 1∶0.75, 1∶0.62, 1∶0.60 and 1∶0.78 from 2018 to 2021, respectively. The prevalence of current smoking was 21.99%, 21.42%, 22.07% and 20.30%, and the standardized prevalence was 22.03%, 20.12%, 21.33% and 19.38% from 2018 to 2021, respectively, appearing no significant changing trend ( χ2trend=3.751, P=0.053 ). The prevalence of current smoking was significantly higher among rural residents than among urban residents, and higher in men than in women ( all P<0.05 ). The prevalence of smoking cessation was 24.44%, 27.11%, 26.97% and 29.59%, and the standardized prevalence was 21.96%, 26.90%, 24.92% and 28.38% from 2018 to 2021, appearing a tendency towards a rise ( χ2rend=11.193, P=0.001 ). The prevalence of exposure to secondhand smoke was 52.40%, 50.18%, 48.99% and 44.58%, and the standardized prevalence was 54.08%, 51.45%, 49.95% and 46.76% from 2018 to 2021, showing a tendency towards a decline ( χ2rend=62.094, P<0.001 ) .@*Conclusions@#The prevalence of current smoking was approximately 20% among adults in Ningbo City from 2018 to 2021, with a tendency towards a decline in the prevalence of exposure to secondhand smoke and a tendency towards a rise in the prevalence of smoking cessation. Rural male residents are key targets for tobacco control.