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. 2021 Apr 16;36(17):e119. doi: 10.3346/jkms.2021.36.e119

Table 2. Characteristics of the study participants (n = 110).

Characteristics No. (%)
Demographic characteristics
Age, yr
20–29 32 (29.1)
30–39 40 (36.4)
40–49 22 (20.0)
50–59 8 (7.3)
≥ 60 8 (7.3)
Sex
Male 71 (64.5)
Female 39 (35.5)
Highest level of education attained
College or above 32 (29.1)
High school or below 78 (70.9)
Household income
Very low 3 (2.7)
Low 11 (10.0)
High 15 (13.6)
Very high 21 (19.1)
No response 60 (54.5)
Occupational characteristics
Working hours
< 40 55 (50.0)
41–52 29 (26.4)
53–60 17 (15.5)
> 60 9 (8.2)
Working schedule
Day time 92 (83.6)
Evening time 5 (4.5)
Rotating day and night 3 (2.7)
Irregular working time 10 (9.1)
Classification of occupation
Non-manual worker 69 (62.7)
Manual worker 41 (37.3)
Job satisfaction
Very satisfied 5 (4.5)
Satisfied 27 (24.5)
Dissatisfied 66 (60.0)
Very dissatisfied 12 (10.9)
Lifestyle
Alcohol use disorder 33 (30.0)
Ever-smoking 33 (30.0)
Physical activity
Active 48 (43.6)
Inactive 62 (56.4)
Health status
Sleep disorder 31 (28.2)
Depression 7 (6.4)
Occupational injury 9 (8.2)
Perceived health status
Excellent 13 (11.8)
Good 40 (36.4)
Fair 47 (42.7)
Poor 8 (7.3)
Very poor 2 (1.8)
Unmet medical needs
No 43 (39.1)
Yes 53 (48.2)
No need for hospital examination 14 (12.7)