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Table 1 Demographic characteristics of 14,847 respondents from six companies

From: Association between overtime work hours and preventive dental visits among Japanese workers

 

Men

Women

N

%

N

%

Total

11,179

75.3

3668

24.7

Age, years

29

893

8.0

716

19.5

 30–39

2338

20.9

932

25.4

 40–49

4177

37.4

1298

35.4

 50–59

3771

33.7

722

19.7

Occupation

 clerk

3388

30.3

1385

37.8

 sales

4291

38.4

861

23.5

 research and development

1428

12.8

820

22.4

 engineer

276

2.5

86

2.3

 production line and engineer

1567

14.0

380

10.4

 others

228

2.0

135

3.7

 missing

1

0.0

1

0.0

Marriage status

 Married

8794

78.7

1779

48.5

 Single

2085

18.7

1680

45.8

 Divorce or bereavement

261

2.3

179

4.9

 Missing

39

0.3

30

0.8

Education (graduate status)

 Junior high school or high school

1638

14.7

913

24.9

 Junior college or technical school or high professional school

464

4.2

695

18.9

 College

6093

54.5

1354

36.9

 More than graduate school

2945

26.3

680

18.5

 Missing

39

0.3

26

0.7

Dental problems

 No

10,264

91.8

3410

93.0

 Yes

615

5.5

221

6.0

 Missing

300

2.7

37

1.0

Overtime work hours

 None

1301

11.6

643

17.5

 < 20

6266

56.1

2302

62.8

 20, < 40

2765

24.7

596

16.2

 40

813

7.3

105

2.9

 Missing

34

0.3

22

0.6

  1. Overtime work hours: average number of overtime work hours in a month