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Table 2 Univariable analysis of potential the risk factors for predicting the prognosis of NMOSD

From: Free thyroxine level is associated with both relapse rate and poor neurofunction in first-attack Neuromyelitis Optica Spectrum Disorder (NMOSD) patients

Factor

Statistical value

Relapse

Final EDSS

HR (95% CI)

P value

β (95% CI)

P value

Male sex - no. (%)

27 (24.77)

0.71 (0.35, 1.42)

0.331

0.06 (−0.72, 0.83)

0.887

Age (years)

42.21 ± 15.45

1.00 (0.99, 1.02)

0.699

0.00 (− 0.02, 0.03)

0.754

Hypertension - no. (%)

13 (11.93)

2.76 (1.37, 5.56)

0.004*

−0.17 (−1.20, 0.87)

0.754

Diabetes - no. (%)

7 (6.42)

1.64 (0.65, 4.14)

0.293

−0.15 (− 1.51, 1.21)

0.830

Initial EDSS

4.89 ± 1.80

0.95 (0.82, 1.11)

0.536

0.36 (0.19, 0.53)

< 0.001*

Vision (EDSS of vision)

1.71 ± 1.98

1.05 (0.91, 1.21)

0.491

0.01 (−0.15, 0.18)

0.866

Anti-AQP-4 antibody - no. (%)

 Not tested

30 (27.52)

1.0

   

 Negative

30 (27.52)

0.72 (0.33, 1.57)

0.413

0.03 (−0.86, 0.92)

0.942

 Positive

49 (44.95)

1.20 (0.64, 2.23)

0.569

0.69 (−0.11, 1.49)

0.094

Autoimmune - no. (%)

5 (4.59)

1.98 (0.61, 6.41)

0.256

0.56 (−1.04, 2.15)

0.495

Corticosteroid - no. (%)

95 (87.16)

1.06 (0.51, 2.21)

0.881

0.53 (−0.46, 1.52)

0.299

IVIG - no. (%)

5 (4.59)

0.91 (0.22, 3.73)

0.891

1.29 (−0.29, 2.87)

0.112

Immunosuppressant - no. (%)

26 (23.85)

1.41 (0.76, 2.62)

0.272

−0.42 (−1.20, 0.36)

0.295

Rehabilitation - no. (%)

23 (21.1)

1.24 (0.65, 2.37)

0.510

0.19 (−0.63, 1.01)

0.653

FT3 - pmol/L

4.55 ± 0.83

0.96 (0.69, 1.34)

0.827

0.20 (−0.21, 0.60)

0.343

FT4 - pmol/L

11.46 ± 2.49

1.16 (1.04, 1.28)

0.006*

0.19 (0.06, 0.32)

0.006*

TSH -μIU/mL

3.21 ± 9.39

0.98 (0.93, 1.03)

0.419

−0.02 (−0.06, 0.01)

0.216

  1. no. Number, EDSS Expanded Disability Status Scale, IVIG Intravenous immunoglobulin, FT3 Free triiodothyronine; FT4 Free thyroxine, TSH Thyroid stimulating hormone
  2. *P < 0.05 indicates a significant difference between the two groups