Table 1.

Clinical Characteristics and Imaging Findings of Patients with low and high grade stenotic basilar artery plaque.

	ALL (n=126)	Low grade stenosis (<50%, n=46)	High grade stenosis (≥50%, n=80)	p value
Age	61.5±10.0	63.70±9.4	60.3±10.1	0.07
Sex (male)	82 (65.1%)	33(71.7%)	49(61.3%)	0.23
Diabetes	42 (33.3%)	15 (32.6%)	27 (33.8%)	0.90
Smoking	35 (27.8%)	13 (28.3%)	22 (27.5%)	0.93
Hypertension	101(80.2%)	37 (80.4%)	64 (80.0%)	0.96
Hyperlipidemia	65 (51.6%)	18 (39.1%)	47 (58.8%)	0.03*
Coronary Artery Disease	5 (4.0%)	3 (6.5%)	2 (2.5%)	0.27
Pre-admission Aspirin use	31 (24.6%)	9 (19.6%)	22 (27.5%)	0.32
Pre-admission Statin use	17 (13.5%)	4 (8.7%)	13 (16.3%)	0.23
NIHSS score (median and range)	1 (0,11)	2 (0,11)	0(0,6)	<0.001*
Degree of Stenosis (%)	52.6±15.8	35.2±9.7	62.6±7.9	<0.001*
Enhancement Percentage (%)	17.4±28.4	21.1 ±33.1	15.3 ±25.3	0.27
Intraplaque Haemorrhage	22 (17.5%)	9 (19.6%)	13(16.3%)	0.63
Minimum Lumen Area	3.2±2.97	5.1±3.4	2.1±1.3	<0.001*
Plaque Burden (%)	84.0±9.1	75.9±8.2	88.6±5.7	<0.001*
Symptomatic	66 (52.4%)	28(60.9%)	38 (47.5%)	0.15

NIHSS: National Institute of Health Stroke Scale

^*Statistically significant