Table 2

Univariable and multivariable associations of performance-based tests with the BASFI questionnaire (tests 1 to 6 and 8 together, test 7 separate) (n = 126)

Tests 1 to 6 plus 8

R-square

Beta

P value


Univariable

0.31

Performance

0.56

0.000

Multivariable

0.54

Performance

0.19

0.018

Exertion

0.38

0.000

Pain

0.26

0.008


Test 7

Univariable

0.39

Performance

0.63

0.000

Multivariable

0.51

Performance

0.49

0.000

Exertion

0.00

0.991

Pain

0.36

0.001


Tests: 1) climbing stairs, 2) bending, 3) reaching up, 4) putting on socks, 5) reclining and declining from a chair, 6) getting up from the floor, 7) looking over the shoulder, 8) physically demanding activity. BASFI, Bath Ankylosing Spondylitis Functional Index.

van Weely et al. Arthritis Research & Therapy 2012 14:R52   doi:10.1186/ar3765

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