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Table 3 primary (dependent) and secondary (independent) outcome

From: Derivation and validation phase for the development of clinical prediction rules for rehabilitation in chronic nonspecific low back pain patients: study protocol for a randomized controlled trial

Measures

0 weeks

9 weeks

6 months

1 year

Primary outcome:

    

MODI

X

X

X

X

Secondary outcome

    

Impairments:

    

Duration low back pain*

X

X

X

X

Pelvis impairments*

X

X

  

Respiratory impairments*

X

X

  

PIT

X

X

  

SLR

X

X

  

Beighton scale

X

X

  

ASLR

X

X

  

SKET

X

X

  

Waiters bow

X

X

  

Pelvic tilt

X

X

  

Side support test

X

X

  

Extensor endurance test

X

X

  

Active sit up

X

X

  

VAS*

X

X

X

X

Secondary outcome

    

Activities and participation:

    

RMDQ

X

X

  

SF-36

X

X

  

Hours physical activity/week*

X

X

X

X

Secondary outcome

    

contextual factors:

    

Tampa scale

X

X

X

X

FABQ

X

X

  

Gender*

X

   

Age*

X

X

X

X

Height*

X

   

Weight*

X

X

X

X

BMI*

X

X

  

Smoking*

X

X

  

Profession*

X

X

X

X

Previous therapy*

X

   

Comorbidity*

X

X

  
  1. *Information obtained through anamnesis.
  2. MODI: modified oswestry disability questionnaire, PIT: prone instability test, SLR: straight leg raise, ASLR: active straight leg raise, SKET: sitting knee extension test, VAS: visual analogue scale, RMDQ: roland morris disability questionnaire, FABQ: fear avoidance belief questionnaire, BMI: body mass index.
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Trials

ISSN: 1745-6215