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Evaluation of the Health Utilities Index Mark-3 in heart failure
Susan J Pressler1, George J Eckert, Gwendolyn C Morrison
1The University of Michigan School of Nursing, 400 N. Ingalls, Ann Arbor, MI 48109, USA. spressle@umich.edu
Insights
The Health Utilities Index Mark-3 (HUI-3) shows adequate reliability and validity for heart failure cost-effectiveness studies, despite some limitations in responsiveness and internal consistency.
Area of Science:
- Health Economics
- Quality of Life Measurement
- Cardiology
Background:
- Heart failure (HF) significantly impacts patients' quality of life.
- Cost-effectiveness studies require validated instruments to assess health utilities.
Purpose of the Study:
- To evaluate the Health Utilities Index Mark-3 (HUI-3) for reliability, validity, and responsiveness in heart failure patients.
- To determine the suitability of the HUI-3 for cost-effectiveness analyses in HF.
Main Methods:
- 211 HF patients were enrolled; 165 completed a 26-week study.
- Health-related quality of life was assessed using HUI-3, SF-12, LHFQ, and CHQ at multiple time points.
- Reliability (internal consistency, test-retest) and validity (associations with other QoL measures, discrimination by NYHA class) were analyzed.
Main Results:
- HUI-3 indicated moderate/fair quality of life, with pain, ambulation, cognition, and emotion most affected.
- Internal consistency reliability was low (Cronbach's alpha = 0.51), but test-retest reliability was adequate (ICC = 0.68).
- HUI-3 scores correlated with SF-12, LHFQ, and CHQ, and discriminated by NYHA class and perceived health, but showed lower responsiveness than LHFQ/CHQ.
Conclusions:
- The HUI-3 demonstrated satisfactory reliability and validity in this heart failure cohort.
- These findings support the HUI-3's use in cost-effectiveness studies for heart failure.
- Consideration of HUI-3's limitations in responsiveness and internal consistency is warranted.
Background:
The purpose of this study was to evaluate the reliability, validity, and responsiveness to change of the Health Utilities Index Mark-3 (HUI-3) in heart failure (HF) for use in cost-effectiveness studies.
Methods And Results:
Two hundred eleven patients with HF recruited from outpatient clinics were enrolled; 165 completed the 26-week study. Patients completed 4 health-related quality of life questionnaires (baseline and 4, 8, and 26 weeks), including the HUI-3, the Medical Outcomes Study Short-form 12 (SF-12), the Minnesota Living with Heart Failure Questionnaire (LHFQ), and the Chronic Heart Failure Questionnaire (CHQ). The HUI-3 indicated moderate or fair health-related quality of life overall; the attributes most impaired were pain, ambulation, cognition, and emotion. Internal consistency reliability (Cronbach's alpha = 0.51) was low and test-retest reliability (intraclass correlation coefficient = 0.68) was adequate. The HUI-3 total score was significantly associated with the SF-12, LHFQ, and CHQ total scores. It discriminated among patients with varying New York Heart Association class (P < .001) and varying perceived health (P < .001). The HUI-3 was less responsive to perceived change in health condition than the LHFQ or the CHQ.
Conclusions:
The HUI-3 demonstrated satisfactory reliability and validity in this sample supporting its use in cost-effectiveness studies.
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