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Table 2 Occupational characteristics of the subjects

From: Occupational Factors Associated with Changes in the Body Mass Index of Korean Male Manual Workers

Variables

5 years or less*

More than 5 years*

 

No(%)

BMI change

No(%)

BMI change

Working hours

≤ 9 hours

44(29.1)

0.29 ± 1.04

36(24.3)

0.31 ± 0.85

 

> 9 hours, < 12 hours

74(49.0)

0.33 ± 1.07

78(52.7)

0.21 ± 1.09

 

≥ 12 hours

33(21.9)

0.71 ± 1.02

34(23.0)

0.37 ± 1.05

Shift work

No shift work

114(75.5)

0.35 ± 0.98

90(60.8)

0.23 ± 1.07

 

Two shifts

11( 7.3)

0.50 ± 1.24

19(12.8)

0.29 ± 0.84

 

Three shifts

26(17.2)

0.58 ± 1.30

39(26.4)

0.36 ± 1.02

Sitting time (% of workday)

0-24%

26(17.2)

0.43 ± 1.20

33(22.3)

0.37 ± 0.93

 

25-49%

50(33.1)

0.38 ± 0.92

54(36.5)

0.04 ± 1.08

 

50-74%

47(31.1)

0.25 ± 0.89

37(25.0)

0.40 ± 0.92

 

75-100%

27(17.9)

0.74 ± 1.35

24(16.2)

0.45 ± 1.14

Job stress

     

Job demand

Low

84(55.6)

0.45 ± 1.16

101(68.2)

0.22 ± 1.01

 

High

63(41.7)

0.36 ± 0.93

46(31.1)

0.42 ± 1.04

Insufficient job control

Low

102(67.5)

0.56 ± 1.06

102(68.9)

0.25 ± 0.96

 

High

45(29.8)

0.10 ± 1.03

45(30.4)

0.34 ± 1.16

Inadequate social support

Low

100(66.2)

0.46 ± 1.10

107(72.3)

0.18 ± 1.03

 

High

46(30.5)

0.31 ± 1.00

40(27.0)

0.55 ± 0.96

Job insecurity

Low

110(72.8)

0.39 ± 1.10

113(76.4)

0.23 ± 0.96

 

High

36(23.8)

0.49 ± 0.97

33(22.3)

0.44 ± 1.21

Organizational injustice

Low

105(69.5)

0.43 ± 1.10

109(73.6)

0.17 ± 0.98

 

High

41(27.2)

0.36 ± 1.00

37(25.0)

0.60 ± 1.07

Lack of reward

Low

102(67.5)

0.57 ± 1.13

97(65.5)

0.15 ± 0.98

 

High

45(29.8)

0.07 ± 0.82

50(33.8)

0.53 ± 1.06

Poor occupational climate

Low

76(50.3)

0.45 ± 1.21

85(57.4)

0.24 ± 0.95

 

High

70(46.4)

0.37 ± 0.89

61(41.2)

0.33 ± 1.12

  1. * Length of experience working at the present post.
  2. † Mean ± SD, kg/m2.