Jeffrey B. Geske et al. JCHF 2018;j.jchf.2018.02.010 Predictive Model for Positive Genetic Assessment Clinical markers of a positive genetic test for HCM include increased wall thickness, septal morphology, family history (Hx), younger age, and lack of systemic hypertension diagnosis (Dx). Reprinted with permission from Bos et al. (15). FH = family history; HCM = hypertrophic cardiomyopathy; MLVWT = maximum left ventricular wall thickness; SCD = sudden cardiac death. Jeffrey B. Geske et al. JCHF 2018;j.jchf.2018.02.010 2018 American College of Cardiology Foundation