1. IMPACT-FH Study for Implementing Innovative Family Communication and Cascade Testing Strategies for Familial Hypercholesterolemia.
- Author
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Jones LK, Campbell-Salome G, Walters NL, Brangan A, Morgan KM, Tricou EP, Lindsey Mills ZT, McGowan MP, Gidding SS, Johns AM, Kirchner HL, Rahm AK, and Sturm AC
- Abstract
Background: Relatives of probands diagnosed with familial hypercholesterolemia (FH) should undergo cascade testing for FH., Objectives: The purpose of this study was to evaluate probands' choices of innovative strategies to communicate their FH result with relatives and facilitate cascade testing uptake., Methods: Probands with an FH genetic result from the MyCode Community Health Initiative could choose to share their FH result with adult blood relatives via the Family and Healthcare Professional Packet (packet), family sharing and cascade chatbots (chatbot), and/or FH Outreach and Support Program (direct contact). Cascade testing uptake was measured as reported completion of genetic or cholesterol testing. Generalized estimating equations models were used to identify factors associated with testing., Results: One hundred seventy five probands received an FH result, median age was 58.9 (IQR: 44.9-69.3), and 58.9% were female. Probands shared information about 1,915 adult and 163 minor relatives (11.9 relatives per proband). Seventy percent of probands (121/175) selected at least one strategy for at least one adult relative. An average of 1.2 strategies was selected per adult relative. Cascade testing was completed for 26.6% (144/541) of adults with at least one strategy selected, 2.4% (33/1,374) of adults without a strategy selected, and 25.2% (41/163) of minor relatives. Factors associated with increased cascade testing uptake were selection of at least one strategy (6.32 higher odds), specifically, selection of direct contact (16.78 higher odds)., Conclusions: Strategies implemented improved FH cascade testing uptake compared to previous estimates and in families where no strategy was selected. Overall uptake remains insufficient, which can be attributed to probands reluctance to select a strategy for many relatives., Competing Interests: Dr Jones is a consultant for Novartis. Dr McGowan is on the advisory board for Novartis. Dr Gidding is a consultant for Esperion. Dr Sturm is an employee and stockholder in 23andMe; and on the advisory board for Nest Genomics. Research reported in this publication was supported by the 10.13039/100000050National Heart, Lung, And Blood Institute of the 10.13039/100000002National Institutes of Health under Award Number R01HL148246. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (© 2024 The Authors.)
- Published
- 2024
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