Table 1 Open in new tab Baseline...

	Abnormal Riata	Normal Riata	P
Age, years	66 ± 11	68 ± 10	0.05
Mean time since implantation, years	6.7 ± 1.2	5.9 ± 1.4	<0.001
Venous access, %
Subclavian	35	29	0.45
Cephalic	65	71
DFT testing^a, mean energy, J	15 ± 6	16 ± 5	0.18
Male sex, %	80	78	0.74
BMI, kg/m²	27 ± 5	28 ± 4	0.58
LVEF, %	32 ± 13	31 ± 13	0.56
CAD, %	70	71	0.88
Diabetes mellitus, %	25	27	0.76
ICD indication, %
Primary prevention	58	61
Secondary prevention	42	39	0.67

	Abnormal Riata	Normal Riata	P
Age, years	66 ± 11	68 ± 10	0.05
Mean time since implantation, years	6.7 ± 1.2	5.9 ± 1.4	<0.001
Venous access, %
Subclavian	35	29	0.45
Cephalic	65	71
DFT testing^a, mean energy, J	15 ± 6	16 ± 5	0.18
Male sex, %	80	78	0.74
BMI, kg/m²	27 ± 5	28 ± 4	0.58
LVEF, %	32 ± 13	31 ± 13	0.56
CAD, %	70	71	0.88
Diabetes mellitus, %	25	27	0.76
ICD indication, %
Primary prevention	58	61
Secondary prevention	42	39	0.67

Table 1

Baseline characteristics

	Abnormal Riata	Normal Riata	P
	N = 69	N = 215	P
Age, years	66 ± 11	68 ± 10	0.05
Mean time since implantation, years	6.7 ± 1.2	5.9 ± 1.4	<0.001
Venous access, %
Subclavian	35	29	0.45
Cephalic	65	71
DFT testing^a, mean energy, J	15 ± 6	16 ± 5	0.18
Male sex, %	80	78	0.74
BMI, kg/m²	27 ± 5	28 ± 4	0.58
LVEF, %	32 ± 13	31 ± 13	0.56
CAD, %	70	71	0.88
Diabetes mellitus, %	25	27	0.76
ICD indication, %
Primary prevention	58	61
Secondary prevention	42	39	0.67

	Abnormal Riata	Normal Riata	P
	N = 69	N = 215	P
Age, years	66 ± 11	68 ± 10	0.05
Mean time since implantation, years	6.7 ± 1.2	5.9 ± 1.4	<0.001
Venous access, %
Subclavian	35	29	0.45
Cephalic	65	71
DFT testing^a, mean energy, J	15 ± 6	16 ± 5	0.18
Male sex, %	80	78	0.74
BMI, kg/m²	27 ± 5	28 ± 4	0.58
LVEF, %	32 ± 13	31 ± 13	0.56
CAD, %	70	71	0.88
Diabetes mellitus, %	25	27	0.76
ICD indication, %
Primary prevention	58	61
Secondary prevention	42	39	0.67

Data are expressed as mean ± SD.

P < 0.05 indicates statistical significance.

BMI, body mass index; CAD, coronary artery disease; LVEF, left ventricular ejection fraction; NS, non-significant.

^aDFT = defibrillation threshold, instead of a real DFT a safety margin testing was performed with a safety margin of ≥10 J.