Effectiveness refers to the ability of an intervention (drug, device, treatment, test, pathway etc.) to provide the desired outcome(s) in the relevant patient population. Effectiveness is typically assessed through a clinical trial. When considered at the same time as cost-effectiveness and side effects, the effectiveness of an intervention can be measured in QALYs, or quality-adjusted life years.


How to cite: Effectiveness [online]. (2016). York; York Health Economics Consortium; 2016. https://yhec.co.uk/glossary/effectiveness/


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