What is the purpose of comparative effectiveness?

• A. To inform patients, providers, and decision-makers about which interventions are most effective for which patients under which circumstances
• B. To reduce hospital budgets
• C. To standardize care regardless of patient
• D. To reduce costs by limiting options

Answer: (A)

Comparative effectiveness is about generating and applying evidence that directly compares different interventions to see which works best for specific patients in real-world settings. It focuses on head-to-head comparisons of benefits and harms, taking into account patient characteristics, preferences, and context, so decisions can be tailored rather than assuming one option fits everyone. This helps patients, clinicians, and decision-makers choose the most effective option for a given situation. It is not primarily about cutting budgets, standardizing care for all patients, or limiting choices to reduce costs; those may be incidental effects, but the core aim is informing choices with evidence on what works best for whom and under what circumstances.