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doi: 10.19945/j.cnki.issn.1006-3250.2022.03.013 27

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Associations between e-cigarette use and independent variables were examined using chi-square tests for categorical variables and independent-samples t- tests for continuous variables

In two other cross-sectional studies of the Chinese population 18 and of the middle-aged and elderly population 19 , after adjusting for potential confounders, smoking and HUA were found to be negatively associated with the overall population and the male population, while no significant association was observed in women