Table 1

Characteristics of investigated cohorts

Patients with CHBGeneral population comparatorsSiblings of patients with CHBSiblings of general population comparators
n (females/males)119 (63/56)1190 (630/560)128*1,071*
Age at inclusion†
mean (SD), years
7.5 (10.7)7.4 (10.6)11.7 (14.1)10.0 (12.8)
Follow-up time mean (SD), years17.1 (8.0)16.9 (8.2)18.4 (7.3)18.2 (8.0)
Complete atrioventricular block‡, n119000
  • *Information on sex not available.

  • †Inclusion refers to first year of data included in the current study.

  • ‡Pacemaker treatment is described in online online supplementary table 4.

  • CHB, congenital heart block.