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Table 1 Demographic and occupational characteristics of the subjects stratified by age

From: Fixed night workers and failed smoking cessation

 

Total

19- to 40-year-old men

41- to 60-year-old men

p-value

N

%(SE)

N

%(SE)

N

%(SE)

 

Age (mean (SD))

38.2 (0.1)

32.1 (0.1)

49.6 (0.1)

<0.01

Work schedule

 Day time (06 am-06 pm)

4119

83.6 (0.5)

1594

79.6 (0.9)

2525

86.4 (0.6)

 

 Evening time (02 pm-12 am)

361

7.3 (0.4)

190

9.5 (0.7)

171

5.9 (0.4)

 

 Fixed overnight (09 pm-08 am)

196

4.0 (0.3)

99

4.9 (0.5)

97

3.3 (0.3)

 

 Night-included regular rotation

251

5.1 (0.3)

121

6.0 (0.5)

130

4.4 (0.4)

<0.01

Job category

 Office work

2036

41.6 (0.7)

959

48.5 (1.1)

1077

37.0 (1.1)

 

 Service and sales work

824

16.9 (0.5)

392

19.8 (0.9)

432

14.8 (0.9)

 

 Manual work

2032

41.5 (0.7)

627

31.7 (1.0)

1405

48.2 (1.0)

<0.01

Type of employment

 Permanent

2603

52.8 (0.7)

1324

66.1 (1.1)

1279

43.8 (0.9)

 

 Temporary

297

6.0 (0.3)

176

8.8 (0.6)

121

4.1 (0.4)

 

 Daily workers

246

5.0 (0.3)

74

3.7 (0.4)

172

5.9 (0.4)

 

 aOther

1781

36.1 (0.7)

430

21.4 (0.9)

1351

46.2 (0.9)

<0.01

Work hour

 40 h per week or less

1938

39.3 (0.7)

742

37.0 (1.1)

1196

40.9 (0.9)

 

 More than 40 h per week

2989

60.7 (0.7)

1262

63.0 (1.1)

1727

59.1 (0.9)

0.01

Educational level

 Middle school or less

749

15.2 (0.5)

51

2.6 (0.4)

698

23.9 (0.8)

 

 High school

1926

39.1 (0.7)

814

40.6 (1.1)

1112

38.0 (0.9)

 

 University or more

2252

45.7 (0.7)

1139

56.8 (1.1)

1113

38.1 (0.9)

<0.01

Home income quartile

 Low

272

5.6 (0.3)

103

5.1 (0.5)

169

5.8 (0.4)

 

 Medium low

1115

22.8 (0.6)

499

25.0 (1.0)

616

21.3 (0.8)

 

 Medium high

1685

34.5 (0.7)

762

38.2 (1.1)

923

31.9 (0.9)

 

 High

1818

37.2 (0.7)

632

31.7 (1.0)

1186

41.0 (1.2)

0.01

Marriage status

 Positive

3981

80.8 (0.6)

1291

64.4 (1.1)

2690

92.0 (0.5)

 

 Negative

946

19.2 (0.6)

713

35.6 (1.1)

233

8.0 (0.5)

<0.01

Perceived stress

 Low

3441

69.8 (0.7)

1306

65.2 (1.1)

2135

73.0 (0.8)

 

 High

1486

30.2 (0.7)

698

34.8 (1.1)

788

27.0 (0.8)

<0.01

  1. aincludes employer, self-employed, unpaid family workers, etc.