Air pollution as a catalyst for supporting tobacco control policies? Evidence from a nationwide study on Chinese medical students.

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Abstract

PURPOSE

Few studies have discussed how the increasing ambient air pollution may affect policy-related attitudes. Medical professionals constitute an important interest group who analyse and solve public issues within a medicalised framework. The current study investigates whether ambient air pollution is associated with a greater likelihood of supporting tobacco control measures among medical students.

METHODS

We conducted multistage sampling among the medical students from 42 cities in China. We employed propensity-score matching to eliminate the selection bias and used multilevel logistic regressions for the main analysis (n1=9458, n2=42).

RESULTS

we found that city-level air particulate matter is consistently associated with the support for tobacco control among medical students, net of other individual-level and city-level covariates. For one standard increase in air particulate matter, people are 1.21 times more likely to fully support tobacco control measures (p<0.05). This association is significantly stronger among medical students who are financially worse-off and are ethnic majority.

CONCLUSIONS

Environmental pollution has a significant correlation with people's attitudes towards health policies, even when such policies are not directly concerned with the natural environment. Policy makers may use this opportunity to implement tobacco control measures against the backdrop of China's pollution crisis.

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