Table 3

Univariate Cox Regression Analysis Among Patients Experiencing Appropriate Shocks

β CoefficientHR (95% CI)p Value
Age−0.020.98 (0.96–1.0)0.12
Male1.082.95 (1.02–8.53)0.04
Proband−0.350.71 (0.33–1.53)0.38
Spontaneous type 1 ECG pattern0.912.50 (1.16–5.39)0.02
Symptoms0.972.63 (1.40–4.92)<0.01
 Syncope−0.080.93 (0.32–2.67)0.89
 Aborted SCD1.514.53 (1.57–13.0)<0.01
Family history of SCD−0.420.66 (0.31–1.42)0.29
Previous AF−0.310.73 (0.22–2.44)0.61
Previous SND0.571.77 (0.42–7.50)0.44
EPS inducibility0.902.44 (1.18–6.02)0.04
SCN5A mutation0.291.33 (0.24–7.45)0.74
Implantation during or after 2005−1.180.31 (0.12–0.77)0.01

The HR for age considers every year increase.

AF = atrial fibrillation; CI = confidence interval; HR = hazard ratio; other abbreviations as in Table 1.