Publication date: Dec 01, 2025

Physician educators’ distress and well-being are of emerging concern in academic medicine. The Physician Well-Being Index-Expanded (ePWBI) is known for measuring physician distress and well-being, yet its psychometric properties in Asian contexts, including Hong Kong (HK), remain unexamined. This study evaluated the reliability and validity of the ePWBI in determining the distress and well-being of HK physician educators. This cross-sectional validation study recruited 333 physician educators using convenience sampling at a HK medical school from October 2020 to January 2021, during the COVID-19 pandemic. Participants voluntarily completed the 9-item ePWBI and 5-item World Health Organization Well-Being Index (WHO-5) instruments in an online survey. Psychometric validation included within-network analyses (confirmatory factor analysis [CFA], one-way ANOVA, independent t-tests), and between-network analyses (ROC curves and correlational analyses with the WHO-5). Using data from 333 physician educators, the ePWBI demonstrated excellent construct validity. CFA results indicated good data fit to the a priori model: Comparative Fit Index=0. 99, Tucker-Lewis Index=0. 99, Standardized Root Mean Square Residual=0. 05, and Root Mean Square Error of Approximation=0. 02 [90% CI 0. 00-0. 05]. Most factor loadings ranged from 0. 36 to 0. 69 and were statistically significant (p

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