Kristian Thorborg's Phd Thesis

Results
The total search identified 2737 publications. Following the screening of titles and abstracts, 2628
publications were excluded. Out of the remaining 109 publications, which were read in full, 68
publications were excluded since they did not fulfil our predefined inclusion criteria (Figure 9),
leaving 41 studies, involving 12.779 patients, as our final data for reviewing (Table 2, Appendix B).
In three situations we found publications containing information on psychometric properties of
PRO questionnaires based upon the evaluation of the same group of patients: (1)[104,105];
(2)[106-108]; and (3).[109-111] These may therefore be considered as one study. We did not
exclude any of these part-studies, since each part included different measurement aspects and/or
results.
A total of 13 PRO questionnaires were identified in the included studies (Table 3). Twelve PRO
questionnaires considered the hip region and one questionnaire considered the groin region.
Table 3. Included PRO questionnaires for patients with hip and/or groin disability
The PRO questionnaires were assessed in three main target populations: Total hip replacement,
hip osteoarthritis, and various forms of hip and groin pain or dysfunction (Table 4, Appendix C).
The inter-tester reliability of the independent ratings based upon the criteria list was good (k=
0.79, CI 95% 0.73 - 0.84).[103] Disagreement was mainly caused by reading errors where one of
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