Diagnostic accuracy of double inversion recovery in delineation of multiple sclerosis lesions and its clinical correlation with expanded disability scoring system

Egyptian Journal of Radiology and Nuclear Medicine

Table 5 Relationship between cortical affection and clinical outcome (EDSS) of the patients

EDSS	Cortical lesion (n = 41)		No cortical lesion (n = 49)		Test of significance	P value
EDSS	No	%	No	%	Test of significance	P value
> 4	38	92.7	0	0.0	χ² = 15.71	< 0.001**
≤ 4	3	7.3	49	100.0	χ² = 15.71	< 0.001**
Median (range)	5.50 (2.00–8.50)		2.50 (1.00–3.50)		Z = 4.33	< 0.001**