International Scholarly Research Notices

Clinical Study

Prevalence, Comorbid Associations and Prognostic Value of the Hyperdense Middle Cerebral Artery Sign

Table 3

Initial deficit and disability associated with the presence of an HMCAS on NECT.


	First-ever strokes HMCAS −ve	First-ever strokes HMCAS +ve	Significance^‡

Initial severity
(mean SSS)	46.2 ± 3.15	27.9 ± 7.64	0.002
Disability at 3–6 months
(mean mRS)	2.0 ± 0.45	4.4 ± 1.1	<0.001
mRS ≤ 2: (%)	40 ()	3 ()	<0.001

	First-ever MCA strokes HMCAS −ve	First-ever MCA strokes HMCAS +ve

Initial severity
(mean SSS)	43.6 ± 3.47	27.9 ± 7.64	0.006
Disability at 3–6 months
(mean mRS)	2.6 ± 0.67	4.4 ± 1.1	0.008
mRS ≤ 2: (%)	17 ()	3 ()	0.05

Two-tailed -test (SSS) and Fisher’s exact test after linear regression analysis.
SSS: Scandinavian Stroke Score [24]. Range from 2 in a maximally-impaired patient to 58 in a normal person.
mRS: modified Rankin score. 0–2 (no–mild disability), 3-4 (significant disability), and 5-6 (high level disability or death). Dichotomized mRS ≤ 2 as favourable and mRS ≥ 2 as poor outcome.