TABLE 4.

Univariate Cox analysis for transplant/mortality

	HR (95% CI)	P value
Age (+5y)	1.153 (1.094, 1.216)	<0.001
Female	0.997 (0.692, 1.437)	0.989
ICM	1.139 (0.891, 1.455)	0.298
EF Pre-Ablation (+5%)	0.696 (0.655, 0.739)	<0.001
NYHA (Ref=I)
II	2.361 (1.457, 3.824)	<0.001
III	5.483 (3.466, 8.672)	<0.001
IV	13.525 (8.149,	<0.001
ICD	2.983 (1.741, 5.113)	<0.001
CRT	2.192 (1.705, 2.818)	<0.001
Electrical Storm	2.639 (2.047, 3.403)	<0.001
ICD Shocks	2.008 (1.477, 2.731)	<0.001
Syncope	1.244 (0.806, 1.921)	0.324
Prior VT Ablation	1.214 (1.087, 1.355)	<0.001
Prior Heart Surgery	1.188 (0.906, 1.558)	0.212
Hypertension	1.093 (0.839, 1.425)	0.510
Hyperlipidemia	1.426 (1.080, 1.882)	0.012
Atrial Fibrillation	1.474 (1.131, 1.920)	0.004
Diabetes Mellitus	2.186 (1.682, 2.841)	<0.001
Chronic Kidney Disease	2.589 (2.027, 3.308)	<0.001
Baseline Creatinine	1.382 (1.271, 1.503)	<0.001
Amiodarone	2.125 (1.599, 2.823)	<0.001
≥2 AAD	1.822 (1.364, 2.434)	<0.001
Beta Blocker	1.340 (0.969, 1.854)	0.077
Hemodynamic Support Device	4.847 (3.399, 6.913)	<0.001
Epi Access	1.104 (0.843, 1.446)	0.474
Ablation (Ref=Endo)
None	1.366 (0.339, 5.506)	0.661
Epi	0.569 (0.291, 1.111)	0.098
Endo+Epi	1.151 (0.843, 1.571)	0.376
Number of VTs Induced
1	1.218 (0.685, 2.165)	0.503
2	2.535 (1.452, 4.429)	0.001
≥3	2.936 (1.706, 5.052)	<0.001
VT Mappability (Ref=All Unmappable)
Both Unmappable and Mappable	1.336 (0.933, 1.913)	0.114
All Mappable	0.542 (0.391, 0.751)	<0.001
Total Lesion Time	1.004 (1.000, 1.008)	0.077
Procedure Time (+15m)	1.033 (1.016, 1.049)	<0.001
Acute Outcome
Not Tested	4.272 (2.740, 6.660)	<0.001
Partial/Failure	3.028 (2.318, 3.955)	<0.001
Procedural Complications	2.300 (1.559, 3.393)	<0.001