Condition-specific outcome measures for low back pain. Part I: validation.
A literature review of the nine most widely used, condition-specific, self-administered assessment questionnaires for low back pain has been undertaken. General and historic aspects, reliability, responsiveness and minimum clinically important difference, external validity, floor and ceiling effects and available languages were analysed for the nine most-used outcome tools. When considering which condition-specific measure to employ, the present overview on assessment tools should provide the necessary information to define the technical aspects of the nine questionnaires. These criteria, however, are only part of the consideration. In part II the construction of these scales in relationship to the measurement domains will be evaluated.
Müller
U
U
Institute for Evaluative Research in Orthopaedic Surgery, University of Bern, Murtenstrasse 35, P.O. Box 8354, 3001 Bern, Switzerland. umueller@memced.org
Duetz
M S
MS
Roeder
C
C
Greenough
C G
CG
D004185:Disability Evaluation; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis* / Q000503:physiopathology*; D017063:Outcome Assessment, Health Care / Q000379:methods* / Q000592:standards*; D011795:Surveys and Questionnaires / Q000592:standards