Family Environment and Community Context for Longitudinal Cigarette Smoking Trajectories Among Chinese Young People.

Tobacco use is the leading cause of preventable death, and China accounts for about 30% of worldwide smokers and 40% of global tobacco consumption. This study examines socioeconomic and community disparities in smoking among young Chinese people from 2010 to 2016. Data were from 953 people aged 16 to 25 in four waves of the China Family Panel Studies (CFPS). Two-level logistic regressions were fitted to account for both inter-individual and intra-individual differences over time. Weight-adjusted multilevel regression results showed a decrease in cigarette smoking among rural young people (OR = 0.71, 95% CI = [0.52, 0.98]) from 2010 to 2016. Higher family income was related to higher odds of cigarette smoking among young people (OR = 1.75, 95% CI = [1.10, 2.80]). Cigarette smoking among young people in families with higher incomes increased over time. Policies and interventions targeting the young should consider the socioeconomic disparities and multilevel context.