Unadjusted and adjusted odds of current STC (n = 4515).

*The odds ratio presents the odds of using smokeless tobacco among current users compared to never users.**Excluded from the multivariate model because of high collinearity with age.比值比（Odds Ratio）用于体现当前无烟烟草使用者与从未使用者的无烟烟草使用比值之比。该指标因与年龄存在高度共线性，已被排除在多变量模型之外。