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Table 5 Prevalence and association of occupation with chronic low back pain

From: Increase of chronic low back pain prevalence in a medium-sized city of southern Brazil

Variable

  

     Crude analyses

 

Adjusted analyses**

N

%

PRR

95% CI†

P

PRR

95% CI†

P

Occupation

    

0,001*

  

0,03*

Never Worked

195

4.6

1

-

 

1

-

 

Trade/sales

480

6.3

1.35

0.65-2.82

 

1.36

0.62-3.00

 

Health

124

8.9

1.91

0.82-4.47

 

1.53

0.62-3.75

 

Education

205

8.3

1.79

0.77-4.14

 

1.66

0.71-3.89

 

Manufacturing

350

10.0

2.16

1.00-4.64

 

2.07

0.94-4.54

 

Cleaning

346

14.4

3.11

1.49-6.49

 

2.11

1.00-4.54

 

Services

864

10.3

2.23

1.15-4.33

 

2.30

1.13-4.65

 

Civil construction

99

9.1

1.96

0.79-4.88

 

2.47

0.92-6.64

 

Agriculture

66

16.7

3.59

1.43-9.01

 

2.78

1.03-7.51

 
  1. * Wald Test for Heterogeneity.
  2. **Adjusted for the variables from 1st, 2nd and 3rd levels.
  3. † 95% Confidence Interval.
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