Table 2.

Predictive testing for variants of class 3/4/5

Do you offer predictive testing for the following variants?	Yes	No	Only to affected individuals	No response
Class 5 variant	146 (97%)	2 (1%)	1 (1%)	1 (1%)
Class 4 variant	123 (82%)	2 (1%)	23 (15%)	2 (1%)
Class 3 variant	18 (12%)	35 (23%)	95 (63%)	2 (1%)

Considering predictive testing for class 4 variants	Yes	No	Defer to Cardiologist to decide	No response
Are you entirely reassuring that non-carriers have low risk of developing the family phenotype?	22 (15%)	101 (67%)	21 (14%)	6 (4%)
Do you recommend cardiac assessment of non-carrier if one has not been performed?	95 (63%)	37 (25%)	10 (7%)	8 (5%)
Do you recommend discontinuation of cardiac follow-up of asymptomatic individuals with negative test?	40 (27%)	51 (34%)	52 (35%)	7 (5%)
Do you counsel patients about the possibility of reclassification of variants?	123 (82%)	14 (9%)	13 (9%)	0