Table 3: Predictive factors analysis for good visual outcome.

Final
BCVA ≥20/60
N (%)
Final BCVA<20/60
N (%)
Univariate Analysis Multivariate Analysis
Predictive Factors Odds ratio (95%CI) p value Odds ratio (95%CI) p value
Mean age at onset (years) 40.25 45.64 1.034 (1.009-1.061) 0.009 1.061(1.025-1.098) 0.068
Female:male (N) 61:16 60:13 0.826 (0.366-1.864) 0.645
Bilaterality 19 (50) 19 (50) 1.074 (0.514-2.242) 0.849
Ocular pain 63 (48.1) 68 (51.9) 0.948 (0.857-2.199) 0.744
Normal disc appearance 51 (49.0) 53 (51.0) 1.431 (0.714-2.859) 0.313
Abnormal disc appearance
- Edema 26 (56.5) 20 (43.5) 0.740 (0.368-1.488) 0.398
- Disc hemorrhage 8 (66.67) 4 (33.33) 0.500 (0.144-1.738) 0.275
Initial BCVA >20/60 27 (84.4) 5 (15.6) 0.136 (0.049-0.378) <0.001 0.328 (0.089-1.208) 0.024
Cause of optic neuritis
- NMO 18 (31.0) 40 (69.0) 1.959 (1.672-4.006) 0.768
- MS 12 (25.2) 11 74.8) 0.961 (0.395-2.338) 0.93
- Idiopathic 47 (68.1) 22 (31.2) 0.275 (0.140-0.542) <0.001 2.803 (0.977-8.044) 0.030

Abbreviations: BCVA = Best Corrected Visual Acuity; N = Number; NMOSD = Neuromyelitis Optica Spectrum Disease; MS = Multiple Sclerosis;