Additional file 1 of Dose-response association of sleep quality with anxiety symptoms in Chinese rural population: the Henan rural cohort

Additional file 1: Table S1. Difference of demographic characteristics of participants with between missing and non-missing on PSQI score stratified by gender. Table S2. OR (95% CI) of sleep quality and anxiety symptoms included participants with shift working stratified by gender. Table S3. OR (95% CI) of sleep quality and anxiety symptoms included participants with shift workers stratified by gender.