Using the third year data of the eighth National Health and Nutrition Examination Survey, 3874 people were selected as subjects. 
National Health and Nutrition Examination Survey
Complex sampling analysis was applied to all analyses, and 307 people were exposed to the SHS group (SHSG) and 3567 people were not exposed to the SHS group (NSHSG). 
Complex sampling analysis
Complex sample linear regression analysis was conducted to confirm the effect of exposure to SHS on oral health and GAD.



Complex sample linear regression analysis