Table 1

Prevalence of overweight and obesity according to demographic characteristics

		Overweight			Obesity
Characteristic	n	PR (%)	χ²	p Value	PR (%)	χ²	p Value
Area
Urban	10 733	32.9	4.25	0.088	14.6	<0.001	0.996
Rural	10 106	31.6		0.088	14.6		0.996
Sex
Male	9873	34.3	40.58	<0.001	16.3	50.82	<0.001
Female	10 966	30.2		<0.001	12.8		<0.001
Age
18–24	1128	14.5	694.27	<0.001	7.8	130.16	<0.001
25–34	2787	27.1			15.8
35–44	4749	34.3			15.5
45–54	5627	39.8			16.5
55–64	4483	40.5			15.7
65–79	2065	37.0			13.9
Education
Primary school and below	6143	34.5	27.81	<0.001	15.3	7.79	0.171
Junior middle school	5977	31.1			15.1
Senior middle school	5349	33.5			14.1
Undergraduate and above	3370	30.1			13.6
Marriage
Unmarried	1569	16.7	393.12	<0.001	10.2	56.95	<0.001
Married	17 861	34.8			15.4
Separated/divorced/widowed	1409	37.4			14.1
Occupation
Manual	11 689	32.0	3.09	0.364	14.2	33.61	<0.001
White collar	4078	32.1			12.9
Other	5072	33.4			17.0

Complex weighted computation was used in the statistical analysis.
PR, prevalence rate.