Effect of the COVID-19 Epidemic on Body Mass Index: Findings from a Large Survey during Wuhan Lockdown

Table 3

Comparison of BMI distribution between residents living in and those who left Wuhan, by social and demographic characteristics. Wuhan, China, 2020.

Variable	Group	Wuhan, N = 8110; mean (SE)	Other regions, N = 3096; mean (SE)	t/F
Sex	Male	24.1 (0.05)	23.4 (0.08)	7.0677	<0.001
	Female	21.8 (0.05)	20.8 (0.08)	9.3046	<0.001
Age	18–29 years	22.0 (0.08)	21.5 (0.09)	3.6819	<0.001
	30–44 years	23.3 (0.06)	22.9 (0.09)	2.9833	0.003
	45+ years	23.7 (0.06)	23.6 (0.17)	0.3166	0.752
Marital status	Married	23.4 (0.05)	23.0 (0.08)	3.9922	<0.001
	Unmarried	22.2 (0.08)	21.5 (0.09)	5.0837	<0.001
	Divorced/widowed	23.3 (0.17)	22.5 (0.35)	1.6317	0.103
Education attainment	Junior high school or less	23.6 (0.12)	23.1 (0.20)	2.1455	0.032
	High school	23.3 (0.08)	22.5 (0.14)	4.5065	<0.001
	Junior college	23.1 (0.08)	22.3 (0.13)	5.0751	<0.001
	Undergraduate college	22.8 (0.07)	22.2 (0.11)	4.5848	<0.001
	Graduate school or higher	22.7 (0.13)	22.1 (0.15)	3.3564	0.001
Hometown location	Urban region	23.1 (0.05)	22.3 (0.07)	8.5401	<0.001
	Suburban region	23.0 (0.09)	22.5 (0.16)	3.1032	0.002
	Rural region	22.7 (0.14)	22.5 (0.23)	0.5079	0.612
Household income per capita in 2019	0–9,999 RMB	23.1 (0.09)	22.1 (0.16)	5.5208	<0.001
	10,000–49,999 RMB	23.0 (0.06)	22.2 (0.09)	6.9979	<0.001
	50,000–99,999 RMB	23.1 (0.09)	22.5 (0.13)	3.6626	<0.001
	100,000+ RMB	23.1 (0.11)	22.8 (0.16)	1.7103	0.087
Total	23.0 (0.04)	22.3 (0.06)	9.5002	<0.001