Table 3.

Area under the curve (AUC) for the receiver-operating characteristic (ROC) by individual Alberta Stroke Program Early CT Score (ASPECTS) regions and reading systems.

Region	Reading system	AUC	SE	95% CI	Chi-square	p-Value
C: caudate head	Medical	0.89	0.042	0.81–0.97	1.10	0.295
	Smartphone	0.83	0.050	0.73–0.92
I: insular ribbon	Medical	0.69	0.146	0.41–0.98	2.96	0.085
	Smartphone	0.44	0.019	0.41–0.48
IC: internal capsule	Medical	0.72	0.145	0.44–1	0.00	0.973
	Smartphone	0.73	0.145	0.45–1
L: lentiform nucleus	Medical	0.87	0.039	0.8–0.95	0.03	0.854
	Smartphone	0.86	0.040	0.78–0.94
M1: anterior MCA cortex	Medical	0.82	0.045	0.73–0.91	1.80	0.180
	Smartphone	0.74	0.052	0.64–0.84
M2: MCA cortex lateral to insular ribbon	Medical	0.80	0.052	0.7–0.91	2.44	0.119
	Smartphone	0.68	0.069	0.54–0.81
M3: posterior MCA cortex	Medical	0.72	0.053	0.61–0.82	0.77	0.379
	Smartphone	0.67	0.057	0.55–0.78
M4: anterior MCA territories	Medical	0.72	0.049	0.62–0.81	0.47	0.493
	Smartphone	0.68	0.048	0.59–0.78
M5: lateral MCA territories	Medical	0.69	0.059	0.57–0.8	3.16	0.075
	Smartphone	0.78	0.047	0.69–0.88
M6: posterior MCA territories	Medical	0.72	0.053	0.62–0.82	0.00	0.944
	Smartphone	0.72	0.052	0.62–0.82

CI: confidence interval; ICC: Intraclass correlation coefficient; MCA: middle cerebral artery.