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Table 4 Poisson regression—Gross and adjusted prevalence ratio according to factors associated with reduced WAI of Technical-Administrative Workers in Education at the Federal University of Juiz de Fora, Juiz de Fora, 2013 (N = 538)

From: Work ability and associated factors of Brazilian technical-administrative workers in education

Variables

PR

Gross

95 % CI

p value

PR

Adjusted

95 % CI

p value

Age

 Up to 34 years old

1

  

1

  

 35 to 49 years old

1.36

0.66–2.78

0.400

1.33

0.79–3.42

0.182

 50 or older

2.02

1.07–3.82

0.031

2.58

1.25–5.09

0.010

Sex

 Male

1

  

1

  

 Female

2.19

1.38–3.47

0.001

2.77

1.25–3.60

0.006

Level of education

 University degree or higher

1

  

1

  

 Up to secondary school

2.24

1.43–3.51

0.000

2.37

1.13–3.59

0.018

Self-assessed overall health

 Good

1

  

1

  

 Bad

3.61

2.29–5.71

0.000

2.96

1.32–3.93

0.003

Signs and symptoms of depression (PHQ9)

 Absent

1

  

1

  

 Present

5.11

3.21–8.14

0.000

4.86

2.23–6.55

0.000

Level of physical activity

 Active or very active

1

  

1

  

 Insufficiently active

1.14

0.69–1.89

0.618

0.01

0.57–1.75

0.995

 Sedentary

2.22

1.23–3.86

0.005

3.00

1.38–4.68

0.003

Social support at work

 Strong social support

1

  

1

  

 Low social support

2.88

1.86–4.45

0.000

4.01

1.66–4.37

0.000

  1. WAI work ability index, PR prevalence ratio
  2. 95 % CI: 95 % confidence interval
  3. Source: The author, 2013