Table 5. Multivariable logistic regression analyses performed on all ISA patients vs others.

Effect	mean±sd or n (%)	OR(95% CI)	p-value
Disease course	657 (38.38)	4.03(3.19–5.09)	<0.0001
(PP vs RR)
EDSS	458 (43.79)	2.44(1.97–3.01)	<0.0001
(= >4 vs <4)
Geographical areas	1288(63.32)	1.37(1.14–1.64)	0,0007
(South-Islands vs Centre-North)