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. Author manuscript; available in PMC: 2016 Oct 1.

Published in final edited form as: Heart Rhythm. 2015 Jun 19;12(10):2058–2066. doi: 10.1016/j.hrthm.2015.06.030

Table 5.

Hazard ratios from the Cox model for Predictions of VF, VFL or SCD.

	Univariate Analysis				Multivariate Analysis
Covariate	Beta	HR [exp(beta)]	95% CI	p-value	beta	HR [exp(beta)]	95% CI	p-value
α₁	−4.06	0.0173	(3.83E-3 0.0785)	<0.001	0.367062	1.44	(0.0823 25.3)	0.802
α₂	−3.46	0.0316	(7.82E-3 0.127)	< 0.001	−3.06931	0.0465	(0.00528 0.409)	<0.01
TS	−0.242	0.785	(0.672 0.918)	<0.01	−0.11552	0.891	(0.763 1.04)	0.144
TO	12.4	2.45E+05	(0.732 8.2E10)	0.0559	8.649373	5.71E+03	(3.20E-06 1.02E13)	0.426
Number of PVCs/hr	0.032	1.03	(1.02 1.05)	< 0.001	0.018571	1.02	(0.997 1.04)	0.0932
LF/HF	−2.39	0.0919	(0.0277 0.305)	< 0.001	−1.26969	0.281	(0.0479 1.65)	0.160
SDNN	−0.0041	0.996	(0.990 1.00)	0.19	−0.00422	0.996	(0.983 1.01)	0.537
Mean heart rate	0.0201	1.02	(0.996 1.04)	0.097	0.012986	1.01	(0.984 1.04)	0.380
pNN50	0.0015	1.00	(0.989 1.01)	0.817	−0.00421	0.996	(0.970 1.02)	0.752
HRVTI	−0.0213	0.979	(0.955 1.00)	0.088	0.024206	1.02	(0.974 1.08)	0.348