Changes in e-cigarette use and related behaviors following the 2022 e-cigarette tax increase in China: A prospective longitudinal observational study

This study suggests a possible association between the China's 2022 e-cigarette tax increase and changes in e-cigarette use. However, its effectiveness was diminished due to the large number of e-cigarette users who switched to conventional cigarettes. China's 2022 e-cigarette tax increase also affected social norms regarding e-cigarette use and exposure to e-cigarette advertising. The findings may inform future policy considerations for a comprehensive strategy.