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. 2016 Dec 23;19(11):1826–1832. doi: 10.1093/europace/euw337

Table 1.

Demographics and baseline clinical parameters

Parameter All patients (n=510) Transvenous ICD (n=448) Subcutaneous ICD (n=62) P-values
Male gender, n (%) 399 (78) 354 (79) 45 (73) 0.250
Age, years 65 ±13 67 ±11 47 ±13 <0.001
BMI classification 0.001
 Underweight, n (%) 10 (2) 10 (2) 0 (0)
 Normal weight, n (%) 189 (37) 154 (34) 35 (56)
 Overweight and obese, n (%) 311 (61) 286 (64) 25 (40)
LV ejection fraction, % 36 ±11 34 ±10 49 ±14 <0.001
New York Heart Association <0.001
 Class I, n (%) 107 (21) 66 (15) 41 (66)
 Class II, n (%) 270 (53) 256 (57) 14 (23)
 Class III, n (%) 128 (25) 121 (27) 7 (11)
 Class IV, n (%) 5 (1) 5 (1) 0 (0)
Secondary prevention of SCD, n (%) 123 (24) 91 (20) 32 (52) <0.001
Cardiomyopathy
 Ischaemic, n (%) 286 (56) 268 (60) 18 (29) <0.001
 Dilated, n (%) 97 (19) 94 (22) 3 (5) 0.002
 Hypertrophic, n (%) 25 (5) 16 (4) 9 (15) <0.001
 Hypertensive, n (%) 16 (3) 15 (3) 1 (2) 0.706
 Valvular, n (%) 20 (4) 18 (4) 2 (3) 1.000
 ARVD, n (%) 10 (2) 7 (2) 3 (5) 0.110
 Congenital, n (%) 5 (1) 4 (1) 1 (2) 0.478
 Other, n (%) 5 (1) 3 (1) 2 (3) 0.114
Channelopathies/Other
 Idiopathic VF, n (%) 20 (4) 13 (3) 7 (11) 0.001
 Brugada, n (%) 15 (3) 2 (0.4) 13 (21) <0.001
 Long QT syndrome, n (%) 5 (1) 3 (1) 2 (3) 0.114
 Other, n (%) 6 (1) 5 (1) 1 (2) 0.542
Coronary artery disease, n (%) 293 (57) 275 (61) 18 (29) <0.001
Myocardial infarction, n (%) 269 (53) 252 (56) 17 (27) <0.001
Coronary artery bypass graft, n (%) 97 (19) 92 (21) 5 (8) 0.019
PTCA, n (%) 194 (38) 181 (40) 13 (21) 0.003
Chronic kidney disease, n (%) 87 (17) 83 (19) 4 (6) 0.018
Diabetes, n (%) 134 (27) 127 (28) 7 (11) 0.004
COPD, n (%) 82 (16) 80 (18) 2 (3) 0.001

BMI, body mass index; LV, left ventricular; SCD, sudden cardiac death; ARVD, arrhythmogenic right ventricular dysplasia; VF, ventricular fibrillation; PTCA, percutaneous transluminal coronary angioplasty; COPD, chronic obstructive pulmonary disease.