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Table 1 Change in MRI parameters from baseline to Year 3 (pooled treatment groups)

From: Changes in magnetic resonance imaging disease measures over 3 years in mildly disabled patients with relapsing-remitting multiple sclerosis receiving interferon β-1a in the COGnitive Impairment in MUltiple Sclerosis (COGIMUS) study

 

MRI Parameter

 

T2 lesions

T1 Gd+ lesions

T1 black holes

Lesion volume, mm3

Baseline

Year 3

Baseline

Year 3

Baseline

Year 3

   N

158

158

154

154

156

156

   Mean (SD)

5990.1 (7111.6)

5345.9 (6755.3)

73.8 (252.1)

25.6 (125.5)

1263.1 (2430.6)

1185.4 (2520.7)

   Median

3378.5

2825.0

0.0

0.0

436.3

341.9

   Q1, Q3

1052.9, 7358.5

782.0, 6918.5

0.0, 0.0

0.0, 0.0

76.5, 1189.2

67.9, 1160.0

Absolute change, mm 3

   N

158

154

156

   Mean (SD)

−644.2 (3072.1)

−48.2 (269.3)*

−77.7 (1056.8)

   Median

−135.6

0.0

0.0

   Q1, Q3

−719.8, 86.7

0.0, 0.0

−89.5, 73.4

Percentage change

   N

158

34

132

   Mean (SD)

−7.6 (34.1)c

−60.5 (149.4)

0.3 (67.8)

   Median

−7.3

−100.0

−4.7

   Q1, Q3

−23.8, 4.0

−100.0, −100.0

−32.1, 19.5

  1. Gd+, gadolinium-enhancing; IFN, interferon.
  2. *P = 0.0034 vs baseline; Wilcoxon signed rank test.
  3. Percentage change was not calculated for patients with a lesion volume of 0 mm3 at baseline.
  4. P < 0.0001 vs baseline; Wilcoxon signed rank test.