Annals of Occupational and Environmental Medicine

Table 2 General characteristics of bus company employees and general workers

From: Cardiovascular disease risk differences between bus company employees and general workers according to the Korean National Health Insurance Data

		Bus company employees		General workers
		n	%	n	%	p-value
Total		15,719	100.0	8,033,907	100.0
Sex	Male	15,130	96.3	5,139,814	64.0	< 0.0001
Sex	Female	589	3.8	2,894,093	36.0
Age	15–29	52	0.3	1,242,608	15.5	< 0.0001
	30–39	1088	6.9	2,338,147	29.1
	40–49	5656	36.0	2,227,686	27.7
	50–59	7638	48.6	1,668,020	20.8
	> 60	1285	8.2	557,446	6.9
Income level	25%P	181	1.2	1,805,809	22.5	< 0.0001
	50%P	640	4.1	1,852,773	23.1
	75%P	13,072	83.2	2,135,139	26.6
	100%P	1826	11.6	2,240,186	27.9
Obesity^a	yes	6410	40.8	2,708,099	33.7	< 0.0001
Obesity^a	no	9309	59.2	5,325,808	66.3
Smoking	yes	3756	23.9	4,282,941	53.3	< 0.0001
Smoking	no	11,963	76.1	3,750,966	46.7
Heavy drinking^b	yes	3104	19.8	1,362,534	17.0	< 0.0001
Heavy drinking^b	no	12,615	80.3	6,671,373	83.0
Lack of exercise^c	yes	5904	37.6	4,923,386	61.3	< 0.0001
Lack of exercise^c	no	9815	62.4	3,110,521	38.7

^aObesity is defined as having a body mass index of above 25 kg/m²
^bHeavy drinking is defined as a person who reportedly drink > 7 glasses of alcoholic beverage in a week
^cLack of exercise is defined as performing moderate to high-intensity exercises in < 3 times a week

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ISSN: 2052-4374

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