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Table 2 Cox regression multivariate analysis to assess predictors of recurrence

From: Impact of baseline impedance of pulmonary vein antrum on success of catheter ablation for paroxysmal atrial fibrillation guided by ablation index

Factor

Hazard ratio (95%CI)

P value

Age (years)*

1.01 (0.95–1.09)

0.66

LAD (mm)*

1.02 (0.92–1.14)

0.71

BMI (kg/m2)*

0.92 (0.77–1.11)

0.40

LVEF (%)*

0.95 (0.75–1.19)

0.64

Ratio of impedance drop (%)*

0.85 (0.53–1.35)

0.48

First-pass PVI rate (%)*

0.45 (0.18–1.10)

0.08

Baseline impedance (Ω)#

1.06 (1.01–1.10)

< 0.01

PAF duration (years)#

1.18 (1.06–1.32)

< 0.01

AI#

0.92 (0.86–0.99)

0.03

  1. *The HRs and P values of the variables in the equation at the first step of the backward LR method in Cox’s proportional hazards model
  2. #The variables in the equation at the last step of the backward LR method
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BMC Cardiovascular Disorders

ISSN: 1471-2261

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