Odds ratios (95% confidence intervals) obtained from multivariable adjusted^a multilevel logistic models (model 1–6).

Abstract

<p>^a All the six models used the same set of covariates: sex, residence, smoking history, dietary habit, alcohol drinking history, exercise practicing, sleep quality and number of chronic disease.</p><p>^bMLO: main lifetime occupation</p><p>Odds ratios (95% confidence intervals) obtained from multivariable adjusted<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0131331#t002fn001" target="_blank">^a</a> multilevel logistic models (model 1–6).</p