Table 1

Baseline characteristics of eligible patients in the Royal Brompton and Harefield Hospital Cardiovascular Research Centre Biobank cohort

Total cohort, n=1236DCM, n=703HCM, n=533
Age (years)61.4±15.660.8±15.162.2±16.3
Male (%)840 (68.0)459 (65.3)381 (71.5)
Self-reported ethnicity (%)
 Afro-Caribbean43 (3.5)31 (4.4)12 (2.3)
 African36 (2.9)20 (2.8)16 (3.0)
 Asian122 (9.9)40 (5.7)82 (15.4)
 Caucasian996 (80.6)592 (84.2)403 (75.6)
 Chinese4 (0.3)2 (0.3)2 (0.4)
 Mixed5 (0.4)2 (0.3)3 (0.6)
 Other30 (2.4)16 (2.2)15 (2.8)
NYHA class at enrolment (%)*
 I526 (45.0)309 (45.6)217 (44.3)
 II498 (42.6)273 (40.3)225 (45.9)
 III129 (11.0)87 (12.8)42 (8.6)
 IV15 (1.3)9 (1.3)6 (1.1)
  • *Missing data, n=68, 5.5%.

  • DCM, dilated cardiomyopathy; HCM, hypertrophic cardiomyopathy; NYHA, New York Heart Association.