Objective:

To evaluate the psychometric properties of the Chinese-language 14-item Warwick–Edinburgh Mental Well-Being Scale (WEMWBS) in patients with heart failure or myocardial infarction.

Approach:

• Study Design: Cross-sectional validation study involving 392 patients with heart failure or myocardial infarction.
• Validity Assessment: Construct validity was examined using exploratory and confirmatory factor analyses; convergent validity was assessed using factor loadings, composite reliability (CR), and average variance extracted (AVE); criterion-related validity was evaluated using the WHO…
• Reliability Assessment: Internal consistency was estimated using Cronbach’s α; item-level performance was examined using item response theory under the graded response model.

Key Findings:

• The Chinese-language WEMWBS showed excellent internal consistency (Cronbach’s α = 0.961).
• The modified one-factor confirmatory factor model demonstrated acceptable fit indices.
• Criterion-related validity was supported by a strong positive correlation with the WHO-5 (r = 0.746).
• Item response theory analyses indicated generally satisfactory item discrimination and ordered threshold parameters.

Interpretation:

The Chinese-language WEMWBS demonstrated satisfactory psychometric properties in patients with heart failure or myocardial infarction.

Limitations:

• The study is cross-sectional, limiting the ability to assess responsiveness and predictive validity.
• Further longitudinal and intervention studies are needed to evaluate clinical utility.

Conclusion:

The findings support the use of the Chinese-language WEMWBS in cardiovascular care.