Abstract
Eighty Dutch investigators (response 41%) involved in biobank research responded to a web-based survey addressing communication of results of biobank research to individual participants. Questions addressed their opinion towards an obligation to communicate results and related issues such as ownership of blood samples, privacy, therapeutic relationship, costs and implications for participants. Most researchers (74%) indicated that participants only have to be informed when results have implications for treatment or prevention. Researchers were generally not inclined to provide more feedback to patients as compared with healthy participants, nor were they inclined to provide feedback in return for participants' contribution to the biobank. Our results demonstrate major and significant differences in opinion about the feedback of individual results within the community of biobank researchers.