PROJECT NARRATIVE: Genetic counseling and health education are essential components of any early diagnosis program for sickle cell disease to ensure that risk results are effectively communicated by healthcare workers to those at-risk couples and their families. These are also important within the context of culture and health literacy because health beliefs and attitudes of the general public have a significant impact on health seeking behaviors that substantially influence reproductive decisions made by individuals and families.

PROJECT NARRATIVE The central goal of the proposed research is to determine the cost-effectiveness of integrating whole genome sequencing into the care of healthy adults. We will assess the health impact and cumulative healthcare costs of participants of a randomized clinical trial of whole genome sequencing five years after they received results, and we will extend these analyses over patients' lifetimes using decision analytic models. Findings will inform development of clinical guidelines and reimbursement strategies to accelerate the integration of sequencing into medical care.

Whole genome sequencing has vast potential to improve the care of generally healthy adults by identifying predispositions for disease to facilitate targeted prevention and screening efforts, by informing treatment options when illnesses do develop, and more. It may also cause more harm than good through false-positive findings, through unnecessary monitoring because of incomplete genetic penetrance, and because the conditions identified by genomic sequencing may lack effective prevention options.

The advent of clinical genome sequencing to identify patients at risk for serious diseases and to tailor treatments promises to greatly improve health outcomes and provide a foundation for the delivery of Precision Medicine. However, even as laboratory methods to perform sequencing become highly efficient, uncertainty around the optimal breadth and economic value of sequencing as well as ambiguity around which individuals should be tested presents a critical barrier to wider use.