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Table 2: 
Demographic and clinical characteristics of subjects without Gd administrationa
Center A (n = 58)Center B (n = 28)Center C (n = 7)
RRMS (n = 20)SPMS (n = 10)PPMS (n = 10)HC (n = 18)RRMS (n = 19)HC (n = 9)HC (n = 7)
Sex (female/male)12:84:65:511:713:66:35:2
Age (yr)50.5 ± 8.4 (33–65)63.4 ± 4.7 (54–70)55.8 ± 4.6 (49–65)51.9 ± 6.8 (36–61)33.5 ± 8.7 (17–49)32.4 ± 11.9 (21–56)38.6 ± 11.8 (26–53)
Disease duration (yr)18.8 ± 5.8 (9–29)20.7 ± 7.6 (10–33)19.5 ± 4.6 (12–27)NA4.3 ± 2.5 (1–10)NANA
EDSS score3.5 (2.5–6.5)5 (3.5–8)5.5 (3–7.5)NA3 (0–6.5)NANA
  • Note:—NA indicates not applicable.
  • ↵a Data are presented as mean ± SD (range).