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Table 3: The frequencies of spinal MRI findings and associations with monophasic/relapsing disease
MRI Findings Monophasic Disease (n = 50) (n) (%) Recurrent Disease (n = 27) (n) (%) P Value Unadjusted OR (95% CI)
LETM (n = 42) (54.5%) 22 (44%) 20 (74.1%) .022^{^a} 3.63 (1.30–10.14)
Multifocal lesions (n = 16) (22.5%) 9/44 (20.5%) 7 (25.9%) .808 1.36 (0.44–4.21)
Distribution .304 
    Cervical (n = 21) (27.3%) 14 (28%) 7 (25.9%) 
    Cervicothoracic (n = 14) (18.2%) 6 (12%) 8 (29.6%) 
    Thoracic (n = 35) (45.5%) 25 (50%) 10 (37%) 
    Holocord (n = 7) (9.1%) 5 (10%) 2 (7.4%) 
Brain stem extension (n = 5) (6.5%) 1/46 (2.2%) 4/25 (16%) .049^{^a} 8.57 (0.90–81.46)
Location .521 
    Gray matter (n = 3) (3.9%) 3 (6%) 0 
    Gray + white matter (n = 65) (84.4%) 42 (84%) 23 (85.2%) 
    White matter (n = 9) (11.7%) 5 (10%) 4 (14.8%) 
>1/2 of the cord area (n = 55) (71.4%) 33 (66%) 22 (81.5%) .242 2.26 (0.73–7.04)
Cord expansion (n = 48) (62.3%) 26 (52%) 22 (81.5%) .021^{^a} 4.06 (1.32–12.42)
T1 hypointensity (n = 23) (30.3%) 11/49 (22.4%) 12 (44.4%) .089 2.76 (1.01–7.61)
BSLs (n = 27) (35.1%) 12 (24%) 15 (55.6%) .012^{^a} 3.95 (1.45–10.74)
Owl's eyes sign (n = 2) (2.6%) 2 (4%) 0 .539 0.58 (0.06–5.88)
Enhancement (n = 48) (62.3%) 26 (52%) 22/26 (84.6%) .011^{^a} 5.07 (1.52–16.87)
Brain involvement (n = 17) (27%) 11/43 (25.6%) 6/20 (30%) .950 1.24 (0.38–4.04)
↵a Significant.