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. Author manuscript; available in PMC: 2013 Oct 7.
Published in final edited form as: Epilepsia. 2008 May 9;49(11):1893–1907. doi: 10.1111/j.1528-1167.2008.01656.x

Table 3.

Rates of the different types of events, comparing seizure onset channels (SOZ) with channels outside the seizure onset zone (NSOZ)

Event type Rate SOZ Rate NSOZ Rate threshold Sensitivity Specificity
Spikes 20.4 ± 15.1 5.2 ± 9.1 24.4 33.4% 95%
Spikes with ripples 9.6 ± 7.5 1.8 ± 4.7 13.3 30.2% 95%
Spikes with fast ripples 7.3 ± 7.7 0.5 ± 1.9 3.9 54.5% 95%
Ripples 25.8 ± 21.5 5.8 ± 10.5 27.6 37.5% 95%
Fast ripples 24.3 ± 32.4 1.9 ± 4.7 11.4 52.5% 95%

The threshold rate indicates above which rate channels could be placed in the SOZ with 95% specificity. The best sensitivity was found for the rate of spikes with fast ripples and fast ripples alone.