A clinical outcome assessment (COA) is a measure that captures how a patient feels, functions, or survives. COAs are categorised into several types based on the reporter or the method of assessment:
Observer-reported outcomes (ObsROs), which are reports from individuals other than the patient (e.g. caregivers) Clinician-reported outcomes (ClinROs), which represent a healthcare professional’s evaluation of a patient’s condition Performance outcomes (PerfOs), which are objective measures of a patient’s ability to perform specific tasks
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