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Table 3 Overview of variables measured in this study

From: Multidisciplinary outpatient care program for patients with chronic low back pain: design of a randomized controlled trial and cost-effectiveness study [ISRCTN28478651]

Variable

Time Measured

 

Baseline T0

3 months

6 months

9 months

12 months

  

T1

T2

T3

T4

Inclusion/exclusion

x

    

Informed consent

x

    

Randomization

x

    

Prognostic variable

     

   Demographic variables (age, gender, ect)

x

    

   Potentional work-related physical factors (DMQ)

x

    

   Potential work-related psychosocial factors (JCQ)

x

    

Outcome measures

     

Primary

     

   Return to work

x

x

x

 

x

Secondary

     

   Pain intensity (VAS)

x

x

x

 

x

   Functional status (RDQ-24)

x

x

x

 

x

   Pain coping (PCI)

x

x

x

 

x

   Quality of life (Euroqol)

x

x

x

 

x

   Patient Satisfaction with Occupational Health Services (PSOHSQ)

 

x

   

   Cost diaries

 

x

x

x

x