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Table 1 Clinical data of MS patients from the 6 MS centres; counts, means and (standard deviations)

From: Chronic cerebrospinal venous insufficiency in multiple sclerosis: clinical correlates from a multicentre study

MS centre 1 2 3 4 5 6 All centres
RR/SP/PP 104/37/7 97/68/44 74/34/8 62/34/22 19/28/2 32/26/12 388/227/95
Age 43(10) 49(11) 43(10) 45(10) 43(10) 44(11) 45(11)
Age at onset 31(10) 36(10) 32(10) 32(8) 29(10) 34(10) 33(10)
Disease duration 12(8) 14(8) 11(8) 13(8) 14(9) 10(6) 12(8)
EDSS 3.5(2.3) 5(2.3) 4.4(2.2) 5.7(1.5) 4.5(1.9) 4.4(2.2) 4.4(2.2)
MSSS 4.1(2.9) 6(2.7) 5.4(2.7) 4.8(1.7) 6.1() 5.3(2.6) 5.3(2.6)
  1. p < 0.001 for all parameters except disease duration (p = 0.022).
  2. RR: relapsing-remitting; SP: secondary progressive; PP: primary progressive