Table 1 Comparison with detection rates of occupational stress among employees with different individual characteristics

Gender

1.198

0.274

3.893

0.048

 Male

463(87.7)

230

49.7

243

52.5

 Female

65(12.3)

37

56.9

26

40.0

Age/years

4.055

0.256

31.189

< 0.001

 20~

109(20.6)

50

45.9

31

28.4

 30~

158(29.9)

85

53.8

96

60.8

 40~

168(31.8)

91

54.2

96

57.1

 50~

93(17.7)

41

44.1

46

49.5

Marital Status

2.243

0.134

9.628

0.002

 Single

126(23.9)

61

48.4

49

38.9

 Married

402(76.1)

206

51.2

220

54.7

Education level

1.648

0.649

4.858

0.183

 High School and below

56(10.6)

24

42.9

27

48.2

 Junior college

129(24.4)

66

51.2

73

56.6

 Undergraduate

276(52.3)

141

51.1

130

47.1

 Master and above

67(12.7)

36

53.7

39

58.2

Working years/years

2.191

0.534

19.678

< 0.001

  < 10

188(35.6)

89

47.3

75

39.9

 10~

105(19.9)

61

58.1

64

61.0

 20~

144(27.3)

74

51.4

87

60.4

 30~

91(17.2)

43

47.3

43

47.3

Work category

4.947

0.293

7.848

0.097

 Management

10(1.9)

6

60.0

5

50.0

 Maintenance

187(35.4)

91

48.7

99

52.9

 Dispatching

30(5.7)

12

40.0

19

63.3

 Substation operation

235(44.5)

129

54.9

122

51.9

 Other

66(12.5)

29

43.9

24

36.4

Shift system

0.120

0.729

1.807

0.179

 Day shift

373(70.6)

189

50.7

183

49.1

 Shift work

155(29.4)

78

50.3

86

55.5

Monthly income/yuan

9.478

0.024

7.430

0.059

  <  5000

96(18.2)

38

39.6

42

43.8

 5000~

206(39.0)

100

48.5

98

47.6

 7000~

174(33.0)

95

54.6

96

55.2

 9000~

52(9.8)

34

65.4

33

63.5

Noise exposure

2.433

0.119

9.551

0.002

 No

349(66.1)

168

48.1

161

46.1

 Yes

179(33.9)

99

55.3

108

60.3

Electromagnetic radiation exposure

1.213

0.271

10.331

0.001

 No

198(37.5)

94

47.5

83

41.9

 Yes

330(62.5)

173

52.4

186

56.4

18.071

< 0.001

6.686

0.010

 No

197(37.3)

76

38.6

86

43.7

 Yes

331(62.7)

191

57.7

183

55.3

Visual display terminal operation

13.638

< 0.001

18.567

< 0.001

 No

352(66.7)

158

44.9

156

44.3

 Yes

176(33.3)

109

61.9

113

64.2

Smoking

0.343

0.558

3.228

0.072

 No

368(69.7)

183

49.7

178

48.4

 Yes

160(30.3)

84

52.5

91

58.9

Drinking

2.738

0.098

3.172

0.075

 No

182(34.5)

83

45.6

83

45.6

 Yes

346(65.5)

184

53.2

186

53.8

Exercise

5.682

0.017

2.144

0.285

 No

129(24.4)

77

59.7

71

55.0

 Yes

399(75.6)

190

47.6

198

49.6

Sleeping time/h

6.337

0.042

5.243

0.073

  <  6

157(29.7)

73

46.5

85

54.1

 6~

245(46.4)

132

53.9

131

53.5

 7~

126(23.9)

51

40.5

53

42.1