E-Cigarette Use Behavior and Influencing Factors Among People Aged 15 Years and Above - Beijing Municipality, China, 2016-2023.

What is already known about this topic?: The electronic cigarette (e-cigarette) market in China has been gradually expanding. Substantial evidence indicates that e-cigarettes pose considerable health risks to the human body.

What is added by this report?: The prevalence of e-cigarette ever use among Beijing residents aged ≥15 years ranged from 5.7% to 8.6% during 2016-2023, while current use ranged from 1.6% to 2.7%, with both metrics peaking in 2021. Current smokers who had attempted to quit within the past year showed the highest odds of e-cigarette use.

What are the implications for public health practice?: The public are not fully aware of the academic and clinical controversies regarding e-cigarettes' effectiveness for smoking cessation and may underestimate their health risks. There is an urgent need for targeted knowledge campaigns and for the provision of more accessible smoking cessation services.