Adaptation and qualitative evaluation of encounter decision aids in breast cancer care

Shared decision-making is currently not widely implemented in breast cancer care. Encounter decision aids support shared decision-making by helping patients and physicians compare treatment options. So far, little was known about adaptation needs for translated encounter decision aids, and encounter decision aids for breast cancer treatments were not available in Germany. This study aimed to adapt and evaluate the implementation of two encounter decision aids on breast cancer treatments in routine care.

We conducted a multi-phase qualitative study: (1) translation of two breast cancer Option Grid™ decision aids; comparison to national clinical standards; cognitive interviews to test patients' understanding; (2) focus groups to assess acceptability; (3) testing in routine care using participant observation. Data were analysed using qualitative content analysis.

Physicians and patients reacted positively to the idea of encounter decision aids, and reported being interested in using them; patients were most receptive. Several adaptation cycles were necessary. Uncertainty about feasibility of using encounter decision aids in clinical settings was the main physician-reported barrier. During real-world testing (N = 77 encounters), physicians used encounter decision aids in one-third of potentially relevant encounters. However, they did not use the encounter decision aids to stimulate dialogue, which is contrary to their original scope and purpose.

The idea of using encounter decision aids was welcomed, but more by patients than by physicians. Adaptation was a complex process and required resources. Clinicians did not follow suggested strategies for using encounter decision aids. Our study indicates that production of encounter decision aids alone will not lead to successful implementation, and has to be accompanied by training of health care providers.