TABLE 2.

Statistical Comparison (by Rank Order and Distance) of Electrodes Highlighted by the GC Map (Based on Interictal Baseline Data) Compared With the Ictally Active Electrode (IAE) Set Identified From Ictal Data and Ultimate Resection. Individual Patients are Shown in Order of Rank Order Correspondence, with Best Correspondence (Lowest P value) at the Top of the List

Comparison of the causality ranking of the IAE set with the causality rankings of a set of the same number of electrodes selected by chance (by sum of the rank orders)					Comparison of the distances of the 1 or 5 highest causality electrodes to the IAE set or RZ set compared with the corresponding expected distance of electrodes selected at random.
Patient number	Rank order sum	Rank order sum by chance	Probability of obtaining observed value by chance		Distance from highest causality electrode to IAE set (mm)	Mean distance from top five electrodes to IAE set (mm)	Expected distance of random set of electrodes to IAE set (mm)	Distance from highest causality electrode to RZ set (mm)	Mean distance from top five electrodes to RZ set (mm)	Expected distance of random set of electrodes to RZ set (mm)
22	2566	3595	<.001		0	12	13	0	35	42
14	646	1013	<.001		0	4	15	0	5	27
1	719	1199	<.001		5	1	12	0	0	11
12	1447	1936	.002		0	8	12	0	2	28
13	1317	1807	.002		0	53	37	N/Aa	N/A	N/A
6	829	1210	.003		0	4	15	0	4	24
21	389	676	.005		8	30	39	0	31	39
23	912	1212	.007		0	2	18	0	1	18
2	558	769	.008		0	14	21	11	19	25
3	817	1067	.009		0	8	17	0	9	27
25	345	620	.01		6	20	27	0	21	27
24	1050	1356	.02		0	9	16	0	22	25
5	901	1177	.02		11	10	15	0	2	12
10	479	647	.02		18	8	14	44	9	20
15	1063	1284	.05		18	23	20	18	28	23
8	2696	3099	.05		0	7	11	0	20	28
4	437	548	.06		10	14	12	0	2	13
11	203	260	.13		0	14	17	0	12	16
20	713	838	.16		21	21	30	0	10	21
18	593	657	.20		15	14	11	0	7	10
19	286	325	.24		10	15	18	0	10	14
17	914	977	.28		0	14	20	0	5	17
16	456	475	.39		16	19	18	10	6	16
9	611	595	.57		10	25	19	0	34	21
7	1810	1732	.70		10	8	17	0	2	33
Combined P value: < 10−20				Mean	6	14	19	4	12	22
				Median	5	14	17	0	9	22
				Pairedb	P < .0001	P = .003		P < .001	P < .001

^aNot applicable: no resection was done.

^bWilcoxon signed rank test.