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Table 3 Underlying cardiac disease by age group

From: Seven years of use of implantable cardioverter-defibrillator therapies: a nationwide population-based assessment of their effectiveness in real clinical settings

Underlying cardiac disease, n (%) Age group, n (%)
<10 years 10 to 19 20 to 29 30 to 39 40 to 49 50 to 59 60 to 69 70 years or more
Cardiomyopathy 1 (100) 6 (42.9) 12 (44.4) 22 (44.0) 50 (42.0) 93 (32.4) 111 (33.0) 78 (33.2)
Chagas’ heart disease 0 (0.0) 0 (0.0) 4 (14.8) 18 (36.0) 44 (37.0) 96 (33.4) 100 (29.8) 50 (21.3)
Congenital heart disease 0 (0.0) 4 (28.6) 4 (14.8) 0 (0.0) 8 (6.7) 6 (2.1) 13 (3.9) 10 (4.3)
Ischemic heart disease 0 (0.0) 2 (14.3) 4 (14.8) 6 (12.0) 10 (8.4) 65 (22.6) 89 (26.5) 76 (32.3)
Other causes (myocarditis, valvular heart disease, hypertensive heart disease) 0 (0.0) 2 (14.3) 3 (11.1) 4 (8.0) 7 (5.9) 27 (9.4) 23 (6.8) 21 (8.9)
Total 1 (100) 14 (100) 27 (100) 50 (100) 119 (100) 287 (100) 336 (100) 235 (100)