Table 1:

Subject characteristics and procedures timeline

	All patients	Acute Stroke and TIA	Acute stroke with LVO
Number	100	63	7
Demographics/medical history
Age	64.5±15.8	64.8±16.7	68.9±12.54
Sex	53M/47F	38M/25F	4M/3F
Race
White	52	34
Hispanic	30	18
Asian	14	9
Black	4	2
Clinical Scales
NIHSS score^	4.4±5.6	5.0±6.3	12.4±7.7
RACE score^	1.6±2.3	1.8±2.4	5.6±3.6
Timeline relative to ED presentation and EEG acquisition
LKW-ED arrival (h:m)	3:22 [00:11–20:25]	3:50 [00:27–20:25]	3:22 [00:45–12:58]
LKW-EEG Acquisition (h:m)	9:27 [00:55–22:50]	11:49 [00:55–22:42]	14:15 [3:30–19:05]
ED admit-EEG (h:m)	3:47 [00:36–19:28]	4:02 [00:45–19:21]	4:33 [1:38–18:20]
Time from consent-start EEG recording	00:09 [00:00:36–23:00]	00:09 [00:00:36–23:00]	00:10 [00:02–00:23]
Brain Injury
Infarct volume (cc)	n/a	19.4±41*	100.3±69.0
Lesion side	n/a	23L/27R*	2L/5R

Data are mean±SD or median [range].

^*Injury data provided for the 50 patients with stroke. Infarct volume range=0–206.7 cc.

^{^}NIHSS scores ranged from 0–27; RACE scores, from 0–9.