Evaluating interventions in health: a reconciliatory approach

Area of Science:

• Health Economics
• Quality of Life Research
• Health Policy Evaluation

Background:

• Health-related Quality of Life (HR QoL) measures are increasingly scrutinized for their reliance on preference-based evaluations of health states.
• Criticisms stem from alternative frameworks emphasizing 'experience' (Kahneman) and 'capability' (Sen) over preferences.
• Disagreements also exist regarding the source of health state valuations (public, patients, professionals) and aggregation methods (individual vs. collective).

Purpose of the Study:

• To analyze the disagreements between different approaches to evaluating health states for HR QoL measures.
• To explore the potential for reconciling diverse perspectives on health state valuation.
• To assess whether existing HR QoL instruments can integrate various evaluation attributes.

Main Methods:

• Conceptual analysis of differing perspectives on health state valuation.
• Review of existing Health-related Quality of Life instruments.
• Examination of potential policy implications arising from different valuation approaches.

Main Results:

• Many perspectives on health state valuation capture important, distinct aspects of quality of life.
• It may be counterproductive to reject any single approach to health state valuation.
• Existing HR QoL instruments may already incorporate elements of experience, capability, and diverse stakeholder input.

Conclusions:

• Reconciliation between 'experience', 'capability', and preference-based approaches to HR QoL is possible.
• Existing HR QoL measurement tools may offer a foundation for integrating these diverse viewpoints.
• Further refinement of current instruments could enhance their ability to capture a comprehensive view of health-related quality of life.