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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Heart Rhythm. 2015 May 30;12(9):1997–2007. doi: 10.1016/j.hrthm.2015.05.036

TABLE 3.

Univariate Cox analysis for VT recurrence

HR (95% CI) P value
Age (+5y) 1.033 (1.000, 1.068) 0.051
Female 1.306 (1.031, 1.654) 0.027
ICM 0.810 (0.684, 0.959) 0.015
EF Pre-Ablation (+5%) 0.871 (0.841, 0.902) <0.001
NYHA (Ref=I)
  II 1.721 (1.343, 2.206) <0.001
  III 2.077 (1.609, 2.682) <0.001
  IV 2.811 (1.939, 4.075) <0.001
ICD 2.361 (1.697, 3.285) <0.001
CRT 1.524 (1.268, 1.833) <0.001
Electrical Storm 1.583 (1.327, 1.888) <0.001
ICD Shocks 1.714 (1.400, 2.099) <0.001
Syncope 1.064 (0.779, 1.453) 0.697
Prior VT Ablation 1.159 (1.065, 1.261) <0.001
Prior Heart Surgery 1.023 (0.842, 1.243) 0.820
Hypertension 1.123 (0.937, 1.346) 0.208
Hyperlipidemia 1.224 (1.019, 1.470) 0.030
Atrial Fibrillation 1.209 (1.002, 1.460) 0.048
Diabetes Mellitus 1.343 (1.100, 1.640) 0.004
Chronic Kidney Disease 1.308 (1.089, 1.570) 0.004
Baseline Creatinine 1.165 (1.052, 1.290) 0.003
Amiodarone 1.237 (1.031, 1.484) 0.022
≥2 AAD 1.522 (1.230, 1.883) <0.001
Beta Blocker 1.251 (1.005, 1.558) 0.045
Hemodynamic Support Device 1.727 (1.203, 2.478) 0.003
Epi Access 1.316 (1.093, 1.585) 0.004
Ablation (Ref=Endo)
  None 2.272 (0.940, 5.490) 0.068
  Epi 0.761 (0.503, 1.151) 0.196
  Endo+Epi 1.237 (0.995, 1.537) 0.055
Number of VTs Induced
  1 1.031 (0.719, 1.476) 0.870
  2 1.867 (1.310, 2.660) <0.001
  ≥3 2.226 (1.582, 3.133) <0.001
VT Mappability (Ref=All Unmappable)
  Both Unmappable and Mappable 1.291 (0.972, 1.716) 0.078
  All Mappable 0.765 (0.610, 0.959) 0.021
Total Lesion Time 1.000 (0.997, 1.004) 0.832
Procedure Time (+15m) 1.031 (1.020, 1.043) <0.001
Acute Outcome
  Not Tested 2.400 (1.689, 3.410) <0.001
  Partial/Failure 1.845 (1.529, 2.227) <0.001
Procedural Complications 1.098 (0.759, 1.590) 0.619