Table 5.

Univariate Logistic regression analysis. Relative risk of clinical conversion in our RIS patients at 24 months of follow-up, according to different clinical and neuroradiological variables.

Clinical and neuroradiological variables	OR	95% CI	P
Age at diagnosis: < 37 years	17.333	(1.387–216.602)	0.025
Gender	0.100	(0.07–1.490)	0.095
Headaches	0.400	(0.051–3.125)	0.382
Pathological cerebrospinal fluid (OCB + IgG)	1.000	(0.108–9.229)	1.000
NMR: > 9 lesions in T2 mode	1.750	(0.124–24.650)	0.678
NMR: > 1 lesion in T1 mode	2.889	(0.325–25.702)	0.341
NMR: > 1 spinal cord lesion	0.100	(0.007–1.490)	0.095
NMR: > 1 gadolinium-enhancing lesion	0.154	(0.017–1.369)	0.093

OR Regression coefficient, CI Confidence Interval, CSF Cerebrospinal Fluid, OCB Oligoclonal Bands, IgG Immunoglobulin G, NMR Nuclear Magnetic Resonance.