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23 September 2022: Clinical Research

Reliability and Validity of Patient-Reported Outcome Measures for Ankle Instability in Hebrew

Uri Gottlieb 1ABCDEF* , Tomer Yona 2BDE , David Shein Lumbroso 1BDE , Jay R. Hoffman 1E , Shmuel Springer 1ABCDEF

DOI: 10.12659/MSM.937831

Med Sci Monit 2022; 28:e937831

Table 3 Psychometric characteristics of all instruments.

InstrumentSample size (n)Internal consistency (α)Test-retest reliability (ICC)Construct validityFloor and ceiling effects (CAI group)Cut-off scoreSEMMDC
AII1680.86 (0.82–0.89)0.82 (0.71–0.90)CAIT: 0.85IdFAI: 0.90FAAM: 0.75FAAM 0.83SF-12 PCS: 0.36SF-12 MCS: 0.12Floor: NoneCeiling: 7.5%≥50.711.96
CAIT1720.89 (0.86–0.91)0.88 (0.79–0.93)AII: 0.85IdFAI: 0.87FAAM: 0.84FAAM: 0.87SF-12 PCS: 0.44SF-12 MCS: 0.17None≤231.855.14
IdFAI1620.91 (0.89–0.93)0.73 (0.56–0.84)AII: 0.90CAIT: 0.87FAAM: 0.75FAAM: 0.84SF-12 PCS: 0.49SF-12 MCS: 0.11None≥133.18.6
FAAM1610.95 (0.94–0.96)0.84 (0.73–0.91)AII: 0.75CAIT: 0.84IdFAI: 0.76FAAM: 0.84SF-12 PCS: 0.49SF-12 MCS: 0.20Floor: NoneCeiling: 5.7%≤97.54.512.5
FAAM1610.96 (0.95–0.97)0.88 (0.79–0.93)AII: 0.83CAIT: 0.88IdFAI: 0.84FAAM: 0.84SF-12 PCS: 0.42SF-12 MCS: 0.19Floor: NoneCeiling: 1.1%≤
ICC – Intraclass Correlation Coefficient; CAI – Chronic Ankle Instability; SEM – Standard Error of the Measurement; MDC – Minimal Detectable Change; AII – Ankle Instability Instrument; CAIT – Cumberland Ankle Instability Tool; IdFAI – Identification of Functional Ankle Instability; FAAM – Foot and Ankle Ability Measure; ADL – Activities of Daily Living; SF – short-form; PCS – Physical Component Score; MCS – Mental Component Score.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750