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Table 1 Demographic data for ankylosing spondylitis patients and healthy controls

From: Markers of intestinal inflammation in patients with ankylosing spondylitis: a pilot study

  Ankylosing spondylitis patients (n= 39) Healthy controls (n= 42)
Age (years) 47 (20 to 85) 39 (27 to 70)
Male 82 52
HLA-B27 76 Not available
Disease duration (years) 22 (2 to 62) Not applicable
Ethnicity   
   Caucasian 77 54
   Asian 8 36
   Hispanic 15 10
  1. Data presented as mean (range) or percentage.