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Table 1 Demographic and occupational characteristics of study population

From: A study on the relationship between job stress and nicotine dependence in Korean workers

Characteristics Frequency (n) Percentage (%)
Total 4,639 100.0
Age (years)
 Under 29 1,327 28.6
 30 ~ 39 1,965 42.4
 40 ~ 49 1,007 21.7
 Over 50 340 7.3
Gender
 Female 1,090 23.5
 Male 3,549 76.5
Education (years)
 Middle school (≤9) 211 4.5
 High school (≤12) 1,896 40.9
 College(≤16) 2,348 50.6
 Graduate(16 <) 184 4.0
Marital status
 Single 1,945 41.9
 Married 2,648 57.1
 Divorced/Separated 46 1.0
Employment type
 Regular 4,172 89.9
 Contract 335 7.2
 Part-time/temporary 132 2.9
Working hour (/week)
 Under 40 168 3.6
 40 ~ 43 2,022 43.7
 44 ~ 47 664 14.3
 48 ~ 55 1,004 21.6
 Over 56 781 16.8
Job type
 White-collar 2,483 53.5
 Blue-collar 2,156 46.5
Industry type
 Manufacturing 3,295 71.0
 Non-manufacturing 1,344 29.0
Position
 Rank-and-file worker 2,959 63.8
 Assistant manager/ deputy manager 956 20.6
 Manager or higher 724 15.6
Industry size (person/site)
 Under 50 468 10.1
 50 ~ 99 1,663 35.9
 100 ~ 299 1,139 24.5
 Over 300 1,369 29.5
Existence of break
 No 1,324 28.5
 Yes 3,315 71.5