Partnership between patients and health‐care professionals (HCPs) is a concept that needs a valid, practical measure to facilitate its use by patients and HCPs.

Objective

To co‐construct a tool for measuring the degree of partnership between patients and HCPs.

Design

The CADICEE tool was developed in four steps: (1) generate key dimensions of patient partnership in clinical care; (2) co‐construct the tool; (3) assess face and content validity from patients’ and HCPs’ viewpoints; and (4) assess the usability of the tool and explore its measurement performance.

Results

The CADICEE tool comprises 24 items under 7 dimensions: 1) relationship of Confidence or trust between the patient and the HCPs; 2) patient Autonomy; 3) patient participation in Decisions related to care; 4) shared Information on patient health status or care; 5) patient personal Context; 6) Empathy; and 7) recognition of Expertise.Assessment of the tool’s usability and measurement performance showed, in a convenience sample of 246 patients and relatives, high face validity, acceptability and relevance for both patients and HCPs, as well as good construct validity.

Conclusions

The CADICEE tool is developed in co‐construction with patients to evaluate the degree of partnership in care desired by patients in their relationship with HCPs. The tool can be used in various clinical contexts and in different health‐care settings.