Participants' Understanding of Informed Consent for Biobanking: A Systematic Review.

Nurses are increasingly asked to obtain consent from participants for biobanking studies. Biobanking has added unique complexities to informed consent. The purpose of this systematic review was to evaluate participants' level of understanding of the information presented during the informed consent process unique to the donation of biological specimens for research. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were utilized to conduct the review. PubMed, EMBASE, CINAHL, PsycINFO, Scopus, Web of Science, and ProQuest bibliographic databases were searched. Results indicated that elements of informed consent unique to biobanking were poorly understood. Most studies had authors or funding associated with a biobank. Only one study disclosed and assessed participants' understanding of moral risks. Increased disclosures, values-clarification, and presenting information via multiple modalities may facilitate understanding. There is a need to improve the quality of informed consent for biobanking studies by utilizing standardized instruments, definitions, and encouraging research about informed choice outside the biobanking industry.