Frailty Assessment Scale for Heart Failure: Development and Psychometric Validation.

Area of Science:

• Cardiology
• Geriatrics
• Psychometrics

Background:

• Frailty is a prevalent condition in heart failure patients.
• Existing frailty scales lack specific psychometric validation in this population.
• The Clinical Frailty Scale is one such example.

Purpose of the Study:

• To develop and validate the Frailty Assessment Scale for Heart Failure (FAS-HF).
• To provide a reliable and valid instrument for assessing frailty in heart failure patients.

Main Methods:

• A three-phase study involving conceptualization, item generation, expert consensus (Delphi method), and psychometric evaluation.
• Cross-sectional field testing with 184 heart failure patients in Taiwan.
• Reliability (Cronbach's α, test-retest) and validity (factor analysis, ROC curve) were assessed.

Main Results:

• The 15-item FAS-HF covers physical, psychological, and social domains, with scores from 0-45.
• Confirmatory factor analysis indicated acceptable model fit (GFI=0.91, AGFI=0.87, RMSEA=0.06).
• The scale demonstrated high reliability (Cronbach's α=0.87, test-retest=0.99) and strong discrimination (AUC=0.94).

Conclusions:

• The FAS-HF is a reliable and valid instrument for assessing frailty in heart failure patients.
• The scale exhibits good discriminative ability.
• FAS-HF can be utilized as an effective frailty indicator in clinical practice for heart failure management.