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. 2011 May 22;9:36. doi: 10.1186/1477-7525-9-36

Table 4.

Relationship between patient-reported outcome and clinical measuresa

Patient-reported outcome measure Clinical outcome measures
BASDAI BASDAI fatigue BASDAI pain Total back pain BASFI Patient's global assessment of disease severity Physician's global assessment of disease severity

FACIT-Fatigue -0.60 -0.69 -0.47 -0.27 -0.56 -0.41 -0.25

SF-36

 Physical function -0.45 -0.36 -0.40 -0.41 -0.72 -0.46 -0.36

 Role-physical -0.37 -0.32 -0.29 -0.37 -0.40 -0.42 -0.29

 Bodily pain -0.58 -0.45 -0.55 -0.55 -0.57 -0.64 -0.42

 General health -0.31 -0.30 -0.25 -0.20 -0.38 -0.30 -0.31

 Vitality -0.35 -0.49 -0.21 -0.24 -0.33 -0.30 -0.10a

 Social function -0.38 -0.41 -0.25 -0.30 -0.42 -0.37 -0.24

 Role-emotional -0.22 -0.22 -0.16a -0.16a -0.19a -0.20 -0.18a

 Mental health -0.24 -0.27 -0.15a -0.12a -0.21 -0.18a -0.10a

 PCS -0.47 -0.36 -0.43 -0.46 -0.65 -0.52 -0.40

 MCS -0.22 -0.30 -0.11a -0.11a -0.15a -0.16a -0.10a

a p < 0.001 for correlations indicated.