TABLE 2.

Demographic of subjects in the independent dataset, and characteristics of NCCT images

Variable	Cohort (n = 207)	p‐value (ASPECTS >6 vs. ≤6)
Clinical variables
Age, years; median (IQR)	72 (63–81)	0.7135
Female, no. (%)	81 (39.1)	0.2619
History of diabetes, no. (%)	35 (16.9)	1.0000
History of hyperlipidemia, no. (%)	49 (23.7)	0.6562
History of coronary heart disease, no. (%)	31 (15.0)	1.0000
History of atrial fibrillation, no. (%)	126 (60.9)	0.7135
History of hypertension, no. (%)	133 (64.3)	0.9973
History of tobacco use, no. (%)	56 (27.1)	0.9592
History of stroke, no. (%)	22 (10.6)	1.0000
Onset to CT time, minutes; median (IQR)	270 (210–360)	0.0033*
Occlusion site		0.8259
ICA	59 (28.5)
M1	102 (49.3)
M2	19 (9.2)
ACA	3 (1.4)
Tandem	24 (11.6)
Prognosis related
CTP core volume (CBF < 30%; ml), median (IQR);	22 (9.2–44) (subjects:144)	0.0000*
90DmRS; median (IQR)	3 (1–5)	0.0719
Preoperative NIHSS; median (IQR)	17 (13–20)	0.0081*
Postoperative 1D NIHSS changes; median (IQR)	−3 (−8–0)	0.1147
Symptomatic intracranial hemorrhage, no. (%)	22 (10.6)	0.7588
Intravenous infusion of Tirofiban, no. (%)	49 (23.7)	0.1228
NCCT ASPECTS score
ASPECTS by radiologist, median (IQR)	6 (4–8)	Reference
ASPECTS by DA‐net, median (IQR)	6 (4–9)	0.0000*
ASPECTS by Radiomics, median (IQR)	5 (4–6)	0.0395*

Note: The p‐value was from Kolmogorov–Smirnov (K‐S) test between ASPECTS score >6 and ASPECTS score ≤6 provided by radiologist scoring in each index.

*indicates p < .05.