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Table 1 Comparisons of the characteristics of the study subjects according to the on-call work

From: The association between Korean employed workers’ on-call work and health problems, injuries

Characteristics On-call work n(%) P-value
Yes No
2722(9.3) 26,524(90.7)
Sex Male 1813(10.2) 15,999(89.8) < 0.001
Female 909(7.9) 10,525(92.1)  
Age(years) 15-29 417(8.2) 4684(91.8) 0.004
30-49 1621(9.4) 15,651(90.6)  
≥ 50 684(10.0) 6189(90.0)  
Education Below middle school 261(9.5) 2489(90.5) 0.008
High school 1018(10.0) 9174(90.0)  
College and beyond 1443(8.9) 14,861(91.1)  
Income < 100 156(6.7) 2183(93.3) < 0.001
(10,000won/month) 100-199 948(8.7) 9962(91.3)  
200-299 945(10.4) 8161(89.6)  
≥ 300 673(9.8) 6208(90.2)  
Smoking Never 1376(8.8) 14,263(91.2) < 0.001
Quit 273(8.5) 2957(91.5)  
Current 1073(10.3) 9304(89.7)  
Drinking No 608(9.8) 5576(90.2) 0.004
≤ 1/week 1318(8.8) 13,732(91.2)  
≥ 2/week 796(9.9) 7216(90.1)  
Obesity No 2658(9.3) 26,063(90.7) 0.022
Yes 64(12.2) 461(87.8)  
Hypertension No 2597(9.3) 25,278(90.7) 0.794
Yes 125(9.1) 1246(90.9)  
Employment type Regular 2266(9.1) 22,651(90.9) 0.003
Temporary 456(10.5) 3873(89.5)  
Working time ≤ 40 1034(8.9) 10,553(91.1) 0.159
(Hours/week) 41-60 1432(9.5) 13,631(90.5)  
> 60 256(9.9) 2340(90.1)  
Job type Professional 185(7.3) 2356(92.7) < 0.001
Office 860(9.1) 8607(90.9)  
Service 677(9.1) 6749(90.9)  
Physical 1000(10.2) 8812(89.8)  
Shift work No 2200(8.3) 24,247(91.7) < 0.001
Yes 522(18.6) 2277(81.4)  
Physical exposure No 1580(8.5) 16,953(91.5) < 0.001
Yes 1142(10.7) 9571(89.3)  
Chemical exposure No 1719(8.1) 19,563(91.9) < 0.001
Yes 1003(12.6) 6961(87.4)  
Ergonomic exposure No 2199(9.0) 22,285(91.0) < 0.001
Yes 523(11.0) 4239(89.0)  
Work-related stress No 673(8.3) 7481(91.7) < 0.001
Yes 2049(9.7) 19,043(90.3)