Moving instead of asking? Performance-based tests and BASFI-questionnaire measure different aspects of physical function in ankylosing spondylitis

Table 3 Associations of performance-based tests with the BASDAI questionnaire and BASMI (tests 1 to 6 plus 8 together, test 7 separate) (n = 126)

Tests 1 to 6 plus 8	R-square	Beta	Pvalue
BASDAI	0.08	0.28	0.002
BASMI (n = 98)	0.24	0.50	0.000
Test 7
BASDAI	0.00	-0.06	0.534
BASMI (n = 97)	0.60	0.77	0.000

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. BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; BASMI, Bath Ankylosing Spondylitis Metrology Index.

ISSN: 1478-6362