Skip to main content

Table 5 Prevalence of endoscopic abnormalities by Hp status, 309 CANHelp project participants with endoscopy data, 2008–2013

From: Burden of disease from Helicobacter pylori infection in western Canadian Arctic communities

  Hp positive Hp negative
(n = 224) (n = 85)
n % 95% CI n % 95% CI
Normal gastric mucosaa 177 79 74, 84 65 77 68, 86
Normal duodenal mucosa 204 91 87, 95 82 96 93, 100
Normal gastric and duodenal mucosaa 162 72 66, 78 62 74 64, 83
Esophagitis/esophageal erosions 19 8 5, 12 9 11 5, 19
Barrett’s esophagus 8 4 2, 7 6 7 3, 15
Gastric inflammation, erosions, or ulcersa 46 21 15, 26 17 20 12, 29
 Gastritisa 33 15 10, 19 10 12 5, 19
 Gastric erosionsa 17 8 4, 11 9 11 5, 19
 Gastric ulcera 6 3 1, 6 3 4 1, 10
Duodenal inflammation, erosions, or ulcers 20 9 5, 13 3 4 1, 10
 Duodenitis 16 7 4, 11 3 4 1, 10
 Duodenal erosions 3 1 0, 4 0 0 0, 4
 Duodenal ulcer 3 1 0, 4 0 0 0, 4
  1. Hp H. pylori, CI binomial Wald confidence interval (binomial exact CI for numerators < 10; one-sided binomial exact 97.5% CI for numerators of 0)
  2. aOne Hp-negative participant was missing gastric mucosa assessment, so the denominator is 84 for gastric abnormalities among Hp-negatives