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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Heart Rhythm. 2007 Oct 6;5(2):208–214. doi: 10.1016/j.hrthm.2007.10.006

Figure 2.

Figure 2

Kaplan-Meier clinical event curves of patients as stratified by RTI:DIStdErr or QTVI (QT Variability Index) predictions. Patients with a RTI:DIStdErr over 5.5ms sustain a 210% increase in the rate of clinical events compared to patients with RTI:DIStdErr below 5.5ms. QTVI was a weaker predictor, but itself identified a group with a 54% increase in rate of events.