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Table 3 Odds ratio (OR) and 95% confidence intervals (CI 95) for individual and professional factors associated with Work Ability score – WAS (moderate-poor) vs (excellent-good)

From: Work ability assessment in a worker population: comparison and determinants of Work Ability Index and Work Ability score

Variable

N (%)

Univariable analysis

Multivariable analysis

  

OR

95% CI

P-value

OR

95% CI

P-value

Gender

   

0.99

   

  Female

620 (18.1)

1

     

  Male

1702 (18.1)

1

0.90 -1.11

    

Age

   

< 0.0001

  

< 0.0001

  [40–45]

733 (13.4)

1

  

1

  

  [45–50]

656 (17.0)

1.33

1.18-1.49

 

1.25

1.10-1.42

 

  [50–55]

576 (25.0)

2.15

1.90-2.43

 

1.87

1.63-2.15

 

  [55–60]

309 (30.6)

2.86

2.45-3.34

 

2.73

2.29-3.26

 

  [60–65]

48 (24.5)

2.10

1.50-2.93

 

3.09

2.15-4.44

 

BMI*

   

< 0.0001

   

  Normal

721 (16.3)

1

     

  Underweight

17 (14.3)

0.86

0.51-1.44

    

  Overweight

972 (18.6)

1.18

1.06-1.31

    

  Obesity

612 (19.9)

1.28

1.13-1.44

    

Daily smoking habits

   

< 0.0001

 

0,06

 

  Non-smoker

1611 (17.5)

1

  

1

  

  Former smoker

110 (20.5)

1.21

0.98-1.51

 

1.27

0.97-1.66

 

  From 1 to 10 cigarettes

112 (14.9)

0.83

0.67-1.02

 

1.30

0.92-1.85

 

  From 11 to 20 cigarettes

219 (20.8)

1.24

1.06-1.45

 

0.99

0.70-1.40

 

  From 21 to 30 cigarettes

167 (20.0)

1.18

0.99-1.41

 

1.47

1.08-2.00

 

  > 30 cigarettes

103 (23.6)

1.46

1.16-1.83

 

1.19

0.86-1.65

 

Health status

       

  Number of diseases

 

1.18

1.16-1.19

< 0.0001

1.09

1.07-1.10

< 0.0001

  FICD / Yes

163 (36.6)

2.74

2.25-3.34

< 0.0001

1.45

1.14-1.85

0.003

  MSD / Yes

1380 (28.1)

2.89

2.64-3.17

< 0.0001

1.95

1.74-2.20

< 0.0001

  Mental diseases / Yes

501 (38.0)

3.27

2.90-3.70

< 0.0001

1.98

1.70-2.30

< 0.0001

Type of work function

   

< 0.0001

  

< 0.0001

  Mixed

960 (16.5)

1

  

1

  

  Physical

1043 (24.8)

1.67

1.51-1.84

 

1.65

1.48-1.85

 

  Mental

319 (11.4)

0.65

0.57-0.74

 

0.78

0.67-0.91

 

Firm size*

   

< 0.0001

   

  1-9

307 (15.6)

0.70

0.59-0.82

    

  10-49

623 (16.1)

0.72

0.63-0.83

    

  50-249

681 (17.2)

0.80

0.70-0.92

    

  >=250

377 (21.0)

1

     
  1. * Taken into account in the multivariable analysis but not part of the equation following Wald’s step-by-step descending method.
  2. To help to read the table, let us comment on one example: in the multivariable analysis, taking the age category [40–45] as a reference, the probability to obtain a poor to moderate WAS is significantly higher in the other age categories.
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BMC Public Health

ISSN: 1471-2458

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