Common Metrics

Worldwide, many different questionnaires are being used to measure patient-reported outcomes. Because each questionnaire includes unique items, scores are usually difficult to compare between questionnaires for the same patient-reported outcome. This is a widely recognized barrier to applications for which data needs to be pooled across data sources, such as for comparing quality of care provided by different healthcare providers.

Transparency in Healthcare links questionnaires for the same patient-reported outcome domain to a common scale using state-of-the-art psychometric techniques. Such common metrics allow hospitals, healthcare providers or researchers to compare outcomes, even when different questionnaires were used.  

At his point, we have developed common metrics for pain, physical functioning and fatigue, which include many of the most commonly used, validated questionnaires. Healthcare organizations or professionals with data on any of these domains can obtain linked scores at no cost.

If you are interested in obtaining linked scores or in participating in the development of new common metrics for other domains, please contact Martijn Oude Voshaar for additional details.