Table 1:

Univariate analysis of the baseline variables according to the asymmetry index of cerebral veins^{^a}

Variable	High AI (n = 27)	Low AI (n = 27)	P Value
Mean age (yr)	69 ± 13	69 ± 14	.926
Sex, female (%)	8 (30%)	13 (48%)	.264
Serum glucose (mmol/L)	141 ± 41	159 ± 72	.268
Systolic BP (mm Hg)	156 ± 19	153 ± 24	.653
Time to imaging (min)	175 ± 58	186 ± 68	.514
Time to treatment (min)	222 ± 68	235 ± 60	.448
Baseline NIHSS score	15 (6–18)	9 (5–14)	.096
Stroke risk factors
Atrial fibrillation (%)	13 (48%)	11 (41%)	.785
Hypertension (%)	20 (74%)	18 (67%)	.766
Diabetes mellitus (%)	7 (26%)	9 (33%)	.766
Hyperlipidemia (%)	11 (41%)	9 (33%)	.779
Current smoking (%)	11 (41%)	4 (15%)	.066
Coronary heart disease (%)	7 (26%)	8 (30%)	1.000
Hyperhomocysteinemia (%)	9 (33%)	7 (26%)	.766
White blood cell/mm³	7.1 ± 2.2	8.3 ± 2.4	.052
PT (sec)	12.7 ± 0.9	12.4 ± 1.4	.368
APTT (sec)	27.6 ± 5.6	25.3 ± 3.4	.066
INR	1.06 ± 0.08	1.03 ± 0.12	.325
Fibrinogen level (g/L)	7.7 ± 24.9	2.8 ± 0.9	.313
Serum creatinine level (mg/dL)	0.82 ± 0.14	0.99 ± 0.93	.366
Serum urea nitrogen level (mg/dL)	16.2 ± 5.1	16.1 ± 4.3	.909
TIMI grading	1 (0–1)	2 (0–3)	.002^{^b}
Sites of occlusion			.042^{^b}
Proximal	22	14
Distal	5	13
DWI lesion volume (mL)	37 ± 57	15 ± 33	.091
PWI lesion volume (mL)	120 ± 83	58 ± 67	.004^{^b}
24-Hour DWI lesion volume (mL)	66 ± 82	35 ± 69	.131
Hemorrhagic transformation (%)	11 (41%)	7 (26%)	.387
HI	7 (26%)	5 (19%)	.745
PH	4 (15%)	2 (33%)	.669
sICH	1 (4%)	2 (7%)	1.000
Favorable outcome	17 (63%)	13 (48%)	.412

Note:—BP indicates blood pressure; PT, prothrombin time; APTT, activated partial thromboplastin time; INR, international normalized ratio; HI, hemorrhagic infarction; PH, parenchymal hematoma; sICH, symptomatic intracerebral hemorrhage.
↵a Table cells express results in mean ± SD for normally distributed continuous variables, n (%) for dichotomous variables, and median (interquartile range) for ordinal variables and non-normally distributed continuous variables, respectively.
↵b P < .05.