Quality of the psychometric properties (overall rating and quality of evidence) according to the COSMIN guidelines
| Questionnaires | Structural validity | Internal consistency | Cross-cultural validity | Reliability | Measurement error | Hypotheses testing: construct validity | Responsiveness | |||||||
| Overall rating | Evidence (quality) | Overall rating | Evidence (quality) | Overall rating | Evidence (quality) | Overall rating | Evidence (quality) | Overall rating | Evidence (quality) | Overall rating | Evidence (quality) | Overall rating | Evidence (quality) | |
| HAGOS | ? | Very low | + | High | + | High | + | High | − | High | + | High | + | High |
| iHOT-33 | ? | Very low | + | Very low | + | High | + | High | − | Moderate | + | High | + | High |
| iHOT-12 | ? | Low | + | Moderate | + | High | + | Moderate | − | Low | + | High | ? | High |
| HOS | ? | Very low | + | High | + | High | + | High | ? | High | + | High | + | High |
+, sufficient; −, insufficient; ±, inconsistent; ?, indeterminate.
COSMIN, Consensus-based Standards for the selection of health Measurement Instruments; HAGOS, Hip and Groin Outcome Score; HOS, Hip Outcome Score; iHOT, International Hip Outcome Tool.