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Table 1 Patient population

From: Altered microbiota associated with abnormal humoral immune responses to commensal organisms in enthesitis-related arthritis

Feature Enthesitis-related arthritis Controls
Number 25 13
Age, years, median, range 13.0, 7.0 to 19.0 13.0, 5.8 to 18.0
Male:female, number 11:14 6:7
Body mass index, median, range 20, 16 to 41 23.7, 14.0 to 43.0
Disease duration, years, median, range 2.4, 0 to 8.2 N/A
HLA-B27+, number 9/24 (38%) 0/3
Known inflammatory bowel disease, number 2 (8.0%) 0
Erythrocyte sedimentation rate, median, range 9, 3 to 56  
Medications   
None, number 7 (28%) 13 (100%)
Methotrexate alone, number 2 (8.0%)  
Pentasa alone, number 1 (4.0%)  
Anti-TNF +/− conventional DMARD 15 (60%)  
  1. DMARD, disease-modifying anti-rheumatic drug (methotrexate, leflunomide); TNF, tumor necrosis factor; N/A, not applicable.