Table 1. Sociodemographic and clinical characteristics of HCM mutation carriers and a comparison of mutation carriers applying for an insurance without and with experienced problems.

Characteristics	All mutation carriers		Mutation carriers applying for an insurance				P-value
	n=228		Without problems n=27		With problems n=39
	n	%	n	%	n	%
Age (mean (SD))	49.0 (15.4)		42.6 (13.8)		45.3 (11.3)		0.413
Male	112	49.1	10	37.0	23	59.0	0.132
Having children	184	80.7	18	66.7	33	84.6	0.135
Partner	192	84.2	22	81.5	34	87.2	0.729
Level of education
Low	71	31.1	3	11.1	9	23.1	0.411
Medium	102	44.7	12	44.4	17	43.6
High	55	24.1	12	44.4	13	33.3
Ethnic background
Dutch	224	98.2	27	100	38	97.4	1.000
Other	4	1.8	0	0	1	0.6
Physical comorbidity	101	44.3	8	29.6	17	43.6	0.307
Clinical diagnosis of HCM	135	59.2	14	51.9	36	92.3	<0.001
Heart complaints	59	25.9	9	33.3	23	59.0	0.049
SCD in familya
Yes	120	53.1	20	74.1	21	53.8	0.058
No	59	26.1	6	22.2	8	20.5
Does not know	47	20.8	1	3.7	10	25.6
Years since DNA test result (mean (SD))	3.3 (1.4)		3.5 (1.0)		3.9 (1.5)		0.290
DNA test in predictive setting	123	53.9	14	51.9	6	15.4	0.002

HCM, hypertrophic cardiomyopathy; SCD, sudden cardiac death. P-values <0.05 are in bold text.

^aUnknown in two mutation carriers.