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Table 5 Univariate and multivariate logistic regression analysis of factors influencing shoulder symptoms, stratified by sex

From: Work-related and personal factors in shoulder disorders among electronics workers: findings from an electronics enterprise in Taiwan

 

Men

Women

 

Shoulder symptoms

No shoulder symptoms

Univariate analysis

Multivariate modeld

Shoulder symptoms

No shoulder symptoms

Univariate analysis

Multivariate modeld

 

n

%

n

%

OR

95%CI

p-value

OR

95%CI

p-value

n

%

n

%

OR

95%CI

p-value

OR

95%CI

p-value

Age (years)

      

0.04

1.46

1.01–2.11a

0.05

    

1.1

0.66–1.81

0.72

   

  > 40e

    

1

–

              

 ≦40

    

1.45

1.01–2.07a

              

Body mass index (kg/m2)

    

1

0.96–1.05

0.99

       

0.95

0.90–1.01

0.10

   

Psychological stress

      

0.86

         

0.02

  

0.16

 Nevere

    

1

–

        

1

–

 

1

–

 

 Some periods

    

1.11

0.59–2.08

        

1.82

0.76–4.36

 

1.15

0.33–3.96

 

 Several periods

    

1.16

0.62–2.18

        

1.63

0.66–4.01

 

0.72

0.18–2.88

 

 Permanent

    

1.40

0.62–3.15

        

8.94

2.22–35.95b

 

5.50

0.55–54.66

 

Work-related physical fatigue

      

0.24

         

0.06

  

0.49

 Never or almost nevere

    

1

–

        

1

–

 

1

–

 

 Seldom

    

1.01

0.47–2.17

        

2.00

0.70–5.69

 

2.02

0.48–8.58

 

 Quite often

    

1.46

0.69–3.09

        

2.80

0.98–8.04c

 

2.94

0.61–14.24

 

 Yes, nearly always

    

1.24

0.48–3.19

        

5.13

1.38–19.11a

 

1.53

0.17–14.22

 

Repetition risk

      

< 0.01

  

0.09

      

< 0.01

  

0.12

 Noe

89

13.5

291

61.5

1

–

 

1

–

 

22

22.9

69

39.7

1

–

 

1

–

 

 Low

40

21.3

93

19.7

1.41

0.91–2.18

 

1.02

0.62–1.69

 

13

13.5

35

20.1

1.17

0.53–2.59

 

0.84

0.33–2.10

 

 High

59

31.4

89

18.8

2.17

1.45–3.25b

 

1.64

1.00–2.68a

 

61

63.5

70

40.2

2.73

1.52–4.93b

 

1.71

0.79–3.70

 

Posture risk

      

< 0.01

  

0.14

      

< 0.01

  

0.14

 Noe

78

41.5

276

58.4

1

–

 

1

–

 

21

21.9

71

40.8

1

–

 

1

–

 

 Low

58

30.9

115

24.3

1.78

1.19–2.67b

 

1.37

0.83–2.26

 

35

36.5

47

27.0

2.52

1.31–4.85b

 

2.12

0.99–4.57c

 

 High

52

27.7

82

17.3

2.24

1.46–3.45b

 

1.89

1.01–3.52a

 

40

41.7

56

32.2

2.42

1.28–4.55b

 

1.52

0.66–3.51

 

Force risk

      

< 0.01

  

0.06

      

0.27

   

 Noe

84

44.7

287

60.7

1

–

 

1

–

 

26

27.1

64

36.8

1

–

    

 Low

45

23.9

69

14.6

2.23

1.43–3.49b

 

1.68

0.99–2.85c

 

29

30.2

46

26.4

1.55

0.81–2.98

    

 High

59

31.4

117

24.7

1.72

1.16–2.56b

 

0.92

0.52–1.64

 

41

42.7

64

36.8

1.58

0.86–2.88

    

Vibration risk

      

0.22

         

0.89

   

 Noe

170

90.4

441

93.2

1

–

    

85

88.5

155

89.1

1

–

    

 Yes

18

9.6

32

6.8

1.46

0.80–2.67

    

11

11.5

19

10.9

1.06

0.48–2.32

    
  1. OR odds ratio; CI confidence interval; ap < 0.05, bp < 0.01, cp = 0.05(borderline significant); dMultivariable model included: independence of risk factors in the univariate analysis and no model selection; eReference group