Table 1 Baseline characteristics

Sample - n (%)

351

284

(80.9%)

67

(19.1%)

-

Male - n (%)

297

(84.6%)

238

(83.8%)

59

(89.1%)

0.385^§

Age - years

60.6 ± 11.9

61.4 ± 11.8

56.9 ± 11.8

0.542^†

Body mass index - Kg/cm²

27.3 ± 4.5

27.2 ± 4.5

28.1 ± 4.7

0.481^†

Heart failure - n (%)

255

(72.6%)

213

(75.0%)

42

(62.7%)

0.042^§

LVEF - %

31.4 ± 11.0

31.1 ± 11.1

32.6 ± 10.6

0.445^†

Atrial fibrillation - n (%)

124

(35.3%)

99

(34.9%)

25

(37.3%)

0.552^§

Diabetes mellitus - n (%)

130

(37.0%)

104

(36.6%)

26

(38.8%)

0.410^§

Hypertension - n (%)

226

(64.4%)

182

(65.1%)

41

(61.2%)

0.535^§

Dyslipidemia - n (%)

258

(73.5%)

211

(74.3%)

47

(70.1%)

0.980^§

Glomerular filtration rate – ml/min

78.2 ± 26.4

76.7 ± 26.5

84.7 ± 25.5

0.043^†

Primary prevention - n (%)

280

(79.8%)

226

(79.6%)

54

(80.6%)

0.983^§

Indication - n (%)

 DCM

 HCM

 ICM

 Other

79

38

190

44

(22.5%)

(10.8%)

(54.1%)

(12.5%)

69

24

157

34

(24.3%)

(8.4%)

(55.3%)

(12.0%)

10

14

13

10

(14.9%)

(20.9%)

(49.3%)

(14.9%)

0.010^§

0.084^§

0.004^§

0.286^§

0.255^§

ICD manufacturer - n (%)

 Abbott/St Jude

 Biotronik

 Boston/Guidant

 Medtronic

 Microport/Sorin

67

68

78

84

54

(19.1%)

(19.4%)

(22.2%)

(23.9%)

(15.4%)

60

49

70

56

49

(21.1%)

(17.3%)

(24.6%)

(19.7%)

(17.3%)

7

19

8

28

5

(10.4%)

(28.4%)

(11.9%)

(41.8%)

(7.5%)

< 0.001^§

0.045^§

0.039^§

0.024^§

< 0.001^§

0.046^§

Type of ICD - n (%)

 VVI

 VDD

 DDD

292

6

53

(83.2%)

(1.7%)

(15.1%)

243

4

37

(85.6%)

(1.4%)

(13.0%)

49

2

16

(73.1%)

(3.0%)

(23.9%)

0.049^§

0.014^§

0.332*

0.026^§

Shocks - n (%)

69

(19.7%)

58

(20.4%)

11

(16.4%)

0.423^§

Number of shocks

0 (0–46)

0 (0–46)

0 (0–12)

0.291^#

ATP - n (%)

56

(16.0%)

45

(15.8%)

11

(16.4%)

0.982^§

Number of ATP

0 (0–56)

0 (0–45)

0 (0–56)

0.785^#

Pacing - n (%)

 0

 1–25

 26–50

 51–75

 76–99

 100

271

41

13

4

13

9

(77.2%)

(14.3%)

(4.5%)

(1.4%)

(4.5%)

(3.1%)

228

33

7

2

9

5

(80.3%)

(11.6%)

(2.5%)

(0.7%)

(3.2%)

(1.8%)

43

8

6

2

4

4

(64.2%)

(11.9%)

(9.0%)

(3.0%)

(6.0%)

(6.0%)

0.047^§

0.033^§

0.716^§

0.040*

0.206*

0.489*

0.106*