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Table 1 Demographic and clinical characteristics of the study population

From: Longitudinal analysis of cerebral aqueduct flow measures: multiple sclerosis flow changes driven by brain atrophy

 

MS

(n = 40)

RRMS (n = 26)

PMS

(n = 14)

HCs (n = 20)

MS vs. HCs

p-value

RRMS vs. PMS

p-value

Female, n (%)

24 (60)

15 (57.7)

9 (64.3)

15 (75)

0.39

0.746

Age, mean ± SD

51.6 ± 9.1

48.8 ± 9.7

56.7 ± 4.9

47.4 ± 12.9

0.146

0.002

Follow-up period, mean ± SD

5.6 ± 0.6

5.5 ± 0.6

5.7 ± 0.6

5.5 ± 0.5

0.858

0.423

Disease duration, mean ± SD

16.2 ± 10.6

12.2 ± 9.0

23.6 ± 9.6

–

–

< 0.001

EDSS at BL, median (IQR)

2.5 (1.5–4.75)

1.5 (1.5–2.5)

5.5 (3.4–6.5)

–

–

< 0.001

EDSS at FU, median (IQR)

2.5 (1.5–6.0)

2.0 (1.5–3.0)

6.0 (4.0–6.5)

–

 

< 0.001

DMT use at baseline, n (%)

      

 Interferon-β

12 (30)

10 (38.4)

2 (21.4)

–

–

0.51

 Glatiramer acetate

12 (30)

6 (23.1)

6 (42.9)

–

 Natalizumab

7 (17.5)

4 (15.4)

3 (21.4)

–

 No DMT

9 (22.5)

6 (23.1)

3 (21.4)

–

 T2 LV change, mean ± SD

13.8 ± 34.4

20.5 ± 39.7

0.9 ± 14.6

–

 

0.095

 Annualized T2 LV change, mean ± SD

2.5 ± 6.6

3.8 ± 7.7

0.2 ± 2.6

–

–

0.112

 WBV loss, mean ± SD

− 2.6 ± 1.5

− 2.6 ± 1.4

− 2.5 ± 1.5

–

–

0.831

 Annualized WBV loss, mean ± SD

− 0.43 ± 0.22

− 0.48 ± 0.27

− 0.46 ± 0.27

–

–

0.779

 vCSF expansion, mean ± SD

13.7 ± 10.5

12.5 ± 9.9

15.8 ± 11.6

–

–

0.384

 Annualized vCSF expansion, mean ± SD

2.29 ± 1.8

2.26 ± 1.8

2.89 ± 2.1

–

–

0.353

 Thalamus atrophy, mean ± SD

− 4.7% ± 4.7

− 4.5% ± 5.0

− 5.1%4.3

–

–

0.701

 Annualized thalamus atrophy, mean ± SD

− 0.85 ± 0.88

− 0.81 ± 0.9

− 0.92 ± 0.8

–

–

0.724

  1. The T2-LV, WBV, vCSF and thalamic volume changes are expressed in longitudinal % change. The lesion and brain volumes are measured as milliliters (mL)
  2. MS multiple sclerosis, RRMS relapsing-remitting multiple sclerosis, PMS progressive multiple sclerosis, HCs healthy controls, EDSS Expanded Disability Status Scale, DMT disease modifying treatment, LV lesion volume, WBV whole brain volume, vCSF ventricular cerebrospinal fluid, SD standard deviation, IQR interquartile range, BL baseline, FU follow-up
  3. χ2 and Student’s t-test were used. p-value lower than 0.05 was considered statistically significant and shown in italics