112 patients (71 females) with a mean age of 39.93 (SD: 12.92) answered the 66 questions on the provisional scale.
Elimination left 18 daily activity questions. The interrater reliability of the scale was 0.79 and Cronbach’s α was 0.90. Face
and content validities were determined. It showed good convergence with the Quebec Back Pain Disability Scale (r: 0.82),
the Oswestry Disability Index (r: 0.76), Waddell’s Functional Index (r: 0.68), and the Visual Analog Scale of Handicap (VAShandicap)
(r: 0.49) The scale showed no significant or fair relationship (divergence) with VAS-lumbar, VAS-radicular, Beck
Depression Inventory, morning stiffness, night pain, finger tip-ground distance, radicular pain duration, or modified Sch¨ober’s
index. The scale had two main factors. First represents activities implicating forward bending and second represents standing
activities.
112 patients (71 females) with a mean age of 39.93 (SD: 12.92) answered the 66 questions on the provisional scale.Elimination left 18 daily activity questions. The interrater reliability of the scale was 0.79 and Cronbach’s α was 0.90. Faceand content validities were determined. It showed good convergence with the Quebec Back Pain Disability Scale (r: 0.82),the Oswestry Disability Index (r: 0.76), Waddell’s Functional Index (r: 0.68), and the Visual Analog Scale of Handicap (VAShandicap)(r: 0.49) The scale showed no significant or fair relationship (divergence) with VAS-lumbar, VAS-radicular, BeckDepression Inventory, morning stiffness, night pain, finger tip-ground distance, radicular pain duration, or modified Sch¨ober’sindex. The scale had two main factors. First represents activities implicating forward bending and second represents standingactivities.
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