In Portugal, patient experience indicators are among those used to contract primary' health care. While most OECD health care systems have at least few surveys to collect PREMs, it is often not done in a standardised way (as seen in Korea and Australia) and it is often collected infrequently (in Japan, for example, PREMs are collected once every three years). In a system where PROM data are publicly reported, they can be used to help patients make better-informed choices. Ideally, PROM data should be fed back to clinicians to help them improve the care and outcomes of patients.