Table 1

Demographics and clinical features of patients with MS and HC from Western Australia

CharacteristicsMean±SD or number (%) of patients with MS (n=550)Mean±SD or number (%) of HC (n=299)
Sex
 Females412 (75)218 (73)
 Males138 (25)81 (27)
 Ratio F/M3:12.7:1
Age at disease onset, years35.4±10.9 (10–67)N/A
 Females34.9±10.6 (10–67)
 Males37.2±11.9 (12–64)
Age at sample collection, years47.7±12.4 (15–83)43.7±8.4 (23–69)
 Females47.5±12.2 (19–83)43.7±8.6 (23–69)
 Males48.4±12.9 (15–79)43.8±7.9 (29–64)
Primary progressive MSN/A
 Females19 (4.6)
 Males20 (14.5)
Not Primary progressive MS
 Females393 (95.4)
 Males118 (85.5)
Helicobacter pylori
 Females
  Positive50 (12.1)48 (22.0)
  Negative362 (87.9)170 (78.0)
 Males
  Positive23 (16.5)16 (19.8)
  Negative116 (84.5)65 (81.2)
  • F/M, female/male; HC, healthy controls; MS, multiple sclerosis; N/A, not applicable.