15250-m-cuypers

66 Chapter 4 ABSTRACT Many new decision aids (DAs) are developed while aspects of existing DAs could also be useful, leading to a sub-optimal use of resources. To support treatment decision- making in prostate cancer (Pca) patients, a pre-existing evidence-based Canadian DA was adjusted to Dutch clinical setting. After analyses of the original DA and routines in Dutch Pca care, adjustments to the DA structure and content were made. Subsequent usability testing (N=11) resulted in 212 comments. Care providers mainly provided feedback on medical content, patients commented most on usability and summary layout. All participants reported the DA was comprehensible and well-structured and would recommend DA use. After usability testing final adjustments to the DA were made. The presented methods could be useful for cultural adaptation of pre-existing tools into other languages and settings, ensuring optimal usage of previous scientific and practical efforts and allowing for a global, incremental DA development process.