Table 2

 Performance of the McDonald and modified criteria*† in optic neuritis and non-optic neuritis subgroups

TPFPTNFNSensitivitySpecificity
*TP, true positive (criteria positive and CDMS); FP, false positive (criteria positive and not MS); TN, true negative (criteria negative and not MS); FN, false negative (criteria negative and CDMS); sensitivity, TP/(TP+FN); specificity, TN/(TN+FP).
†Brain and spinal cord MRI findings are included, except that in patients with a brain stem or spinal cord syndrome, lesions in the symptomatic region (that is, infratentorial and spinal cord, respectively) were excluded.
CDMS, clinically definite multiple sclerosis; MRI, magnetic resonance imaging; MS, multiple sclerosis.
Optic neuritisMcDonald criteria for MS122371643%95%
Modified criteria for MS20237871%95%
Non-optic-neuritisMcDonald criteria for MS6111555%92%
Modified criteria for MS10210191%83%