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Table 1 Characteristics of Omani patients with multiple sclerosis in comparison to a control group (N = 52)

From: Retinal nerve fiber layer thickness in multiple sclerosis with and without optic neuritis: a four-year follow-up study from Oman

Participants (n) Control group MS group
Total With ON Without ON
Subjects 25 27 14 13
Eyes 50 51a 25a 26
Age (years)
 Mean 34 30 28 34
Gender (n [%])
 Male 9 (36) 7 (25.9) 4 (28.6) 3 (23.1)
 Female 16 (64) 20 (74.1) 10 (71.4) 10 (76.9)
Visual acuity 0.718 0.728 0.709
MS subtype (n [%])
RR 25 (92.6) 13 (92.9) 12 (92.3)
SP 1 (3.7) 0 (0) 1 (7.7)
CIS 1 (3.7) 1 (7.1) 0 (0)
  1. Abbreviations: MS multiple sclerosis, ON optic neuritis, RR relapsing-remitting, SP secondary progressive, CIS clinically isolated syndrome
  2. aIncluding three MS patients with unilateral ON