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Table 3 Risk (combined variable) for LBP lasting seven or more consecutive days after one year of follow-up (LBP at t1) in univariate analyses.

From: Physical characteristics of the back are not predictive of low back pain in healthy workers: A prospective study

  

Asymptomatic workers

Mildly symptomatic workers

   

LBP at t1

   

LBP at t1

  
  

n

%

RR

95%CI

P-value

n

%

RR

95%CI

P-value

Combined variable

Normal

156

7.7

1.00

 

0.591

173

15.6

1.00

  
 

Abnormal

171

9.4

1.22

(0.60 – 2.49)

 

146

15.8

1.01

(0.61 – 1.68)

0.971

  1. P value calculated with Chi-square tests/RR = relative risk/95%CI = 95% confidence interval