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Table 1 Distribution of clinical variables by H. pylori status

From: Gastric Helicobacter pylori infection associates with an increased risk of colorectal polyps in African Americans

  H. pylori positive N = 366 H. pylori negative N = 890 P value
Gastric lesions    
 - No gastric lesion, n (%) 8 (2) 691 (78) <0.001
 - Chronic Active Gastritis, n (%) 305 (83) 62 (7)
 - Intestinal metaplasia, n (%) 46 (13) 98 (11)
 - Other lesions, n (%) 7 (2) 35 (4)
Polyp, no (%)1 158 (43) 298 (34) 0.001
Polyp size in cm, mean (SD)1* 0.2 (0.15) 0.2 (0.15) 0.2
Polyp Histology*    
 - Advanced Adenoma, n (%) 21 (13) 32 (11) 0.6
 - Non-advanced adenoma, n (%) 87 (55) 160 (54)
 - Hyperplastic polyp, n (%) 50 (32) 106 (36)
Polyp Location1*    
 - Right side, n (%) 51 (32) 95 (32) 0.9
 - Left side, n (%) 84 (53) 164 (55)
 - Both sides, n (%) 23 (15) 38 (13)
  1. 1“Polyp” label in this table includes adenoma and hyperplastic polyp.
  2. *Among subjects with polyps.