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Table 3 The extent and severity of IBD among different ethnic groups

From: Prevalence of inflammatory bowel disease in two districts of Sri Lanka: a hospital based survey

  Sinhala Tamil Muslims
General population of the two districts* 83.5% 8% 6.5%
   UC 209 (89.7%) 17 (7.3%) 7 (3%)
   Extent of UC    
   Distal 103 (91.2%) 7 (6.2%) 3 (2.6%)
   Left sided 43 (86%) 4 (8%) 3 (6%)
   Extensive 51 (88%) 6 (10%) 1 (2%)
   Severity of UC    
   Mild 90 (92.8%) 4 (4.1%) 3 (3.1%)
   Moderate 48 (98%) - 1 (2%)
   Severe 18 (90%) 2 (10%) -
CD 50 (90.9%) 4 (7.3%) 1 (1.8%)
Extent of CD    
   Only small intestinal involvement 6 (85.7%) 1 (14.3%) -
   Only large intestinal involvement 41 (93.2%) 2 (4.5%) 1 (2.3%)
   Large and small intestinal involvement 3 (75%) 1 (25%) -
   Perianal disease 3 (75%) - 1 (25%)
   Upper gastrointestinal involvement 3 (100%) - -
Severity of CD    
   Mild 23 (88.5%) 3 (11.5%) -
   Moderate 9 (90%) 1 (10%) -
   Severe 8 (88.9%) - 1 (11.1%)
  1. *Other ethnic groups 2%