Variables
Crude OR (95% CI) Adjusted OR (95% CI) Adjusted OR (95% CI)
Period of COVID-19 epidemic (in reference to Period 1) ^ Period of COVID-19 epidemic (in reference to Period 1) ^ Period of COVID-19 epidemic (in reference to Period 1) ^ Period of COVID-19 epidemic (in reference to Period 1) ^
Period 2 0.68 (0.34, 1.34) 0.65 (0.32, 1.32) 0.58 (0.28, 1.21)
Period 3 0.60 (0.39, 0.94)* 0.54 (0.34, 0.85)** 0.54 (0.34, 0.87)*
Period 4 0.32 (0.16, 0.63)** 0.29 (0.14, 0.59)*** 0.30 (0.14, 0.63)**
Family function
Poor/fair vs Good 3.20 (2.12, 4.83)*** 3.02 (1.97, 4.63)*** 2.45 (1.56, 3.83)***
Age (in reference to <29 years) Age (in reference to <29 years)
30-34 1.41 (0.89,2.23) 1.30 (0.81,2.09)
>34 1.78 (1.06,3.00)* 1.52 (0.89,2.59)
Education (in reference to Junior high or below) Education (in reference to Junior high or below) Education (in reference to Junior high or below)
Senior high 0.90 (0.45, 1.82) 1.06 (0.51, 2.8)
College or more 0.80 (0.41, 1.57) 1.07 (0.53, 2.13)
Hukou
Urban vs Rural 0.87 (0.58, 1.32) 0.86 (0.56, 1.31)
Family income (in reference to ≥100,000 RMB) Family income (in reference to ≥100,000 RMB)
50,000-100,000 1.17 (0.75, 1.83) 1.06 (0.67, 1.68)
<50,000 2.02 (1.21, 3.36)** 1.75 (1.03, 2.96)*
Insurance
No vs Yes 2.22 (1.25, 3.94)** 2.46 (1.36, 4.44)**
First-time father
No vs Yes 1.36 (0.90, 2.04) 1.30 (0.85, 1.97)
Sleep quality Sleep quality
Poor/fair vs Good 3.18 (2.19, 4.63)***
Smoking
Yes vs No 1.50 (1.03, 2.20)*
Drinking
Yes vs No 1.05 (0.71, 1.53)
Exercise
Yes vs No 0.92 (0.63, 1.34)