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Table 1: 
Demographic and clinical characteristics of patients with multiple sclerosis (n = 193) and healthy controls (n = 193)a
MS (n = 193)HC (n = 193)P Value
Female (No.) (%)130 (67.4)130 (67.4)1.000
Age (mean) (SD) (yr)42.2 (13.9)42.9 (17.5).676
BMI (mean) (SD)26.8 (5.8)26.8 (5.7).94
Disease duration (mean) (SD) (yr)12.0 (9.4)NA–
EDSS (median) (range)2 (0.0–6.5)NA–
Smoking history (No.) (%)73 (46.8)58 (32.4).005b
Heart disease (No.) (%)30 (19.7)20 (12.4).053
Hypertension (No.) (%)38 (25.3)19 (11.3).001b
  • Note:—EDSS indicates Expanded Disability Status Scale; IQR, interquartile range; NA, not applicable.
  • ↵a χ2 and Student t test were used for comparing variables between groups.
  • ↵b An α level of .05 was considered significant.