Glossary

PROs are defined by the Food and Drug Administration (FDA) Guidance for Industry PRO Measures: Use in Medical Product Development to Support Labeling Claims as “any report of the status of a patient’s health condition, health behavior, or experience with healthcare that comes directly from the patient, without interpretation of the patient’s response by a clinician or anyone else.” This definition reflects the key domains of

• Health-related quality of life (including functional status)
• Symptoms and symptom burden (e.g., pain, fatigue)
• Experience with care
• Health behaviors (e.g., smoking, diet, exercise).

PROMs are defined by NQF in PROs in Performance Measurement as an “instrument, scale, or single-item measure used to assess the patient-reported outcome (PRO) concept as perceived by the patient, obtained by directly asking the patient to self-report.” (p. 27)

A patient-reported outcome-based performance measure (PRO-PM) is a performance measure that is based on patient-reported outcome measure (PROM) data aggregated for an accountable healthcare entity. The data are collected directly from the patient using the PROM tool, which can be an instrument, scale, or single-item measure.

A process measure is a measure that focuses on steps that should be followed to provide good care. There should be a scientific basis for believing that the process, when executed well, will increase the probability of achieving a desired outcome.

A proportion is a score derived by dividing the number of cases that meet a criterion for quality (the numerator) by the number of eligible cases within a given time frame (the denominator) where the numerator cases are a subset of the denominator cases (for example, percentage of eligible women with a mammogram performed in the last year).