Abstract
Recent data on the prevalence of H. pylori infection in Jamaica are lacking. It is postulated that there has been a decline in the prevalence of H. pylori infection and its associated complications. We determined sociodemographic characteristics, prevalence of H. pylori infection and clinical outcomes among adults undergoing esophagogastroduodenoscopy (EGD) and histology at the University Hospital of the West Indies (UHWI) between May 2018 and December 2020. A cross-sectional study of patients (≥18 years old), who underwent EGD and histological evaluation for H. pylori infection, was conducted. Associations of H. pylori positivity and gastric cancer with sociodemographic/clinical variables and endoscopic findings were determined by stepwise logistic regression using backward selection. Unadjusted and adjusted odds ratios with related 95% confidence intervals (Cis) were calculated for H. pylori positivity and gastric cancer status. There were 323 participants (mean age 58.6± 17.8 years, 54.2% females). H. pylori prevalence was 22.2% (n= 70 of 315), 5.6% had gastric neoplasia (GN), 15.5% gastric atrophy, 11.4% intestinal metaplasia and 3.7% dysplasia on histology. Mucositis (64.5%), gastric ulcer (14.9%), and duodenal ulcer (13.9%) were the most common endoscopic findings. Participants with peptic ulcer disease (PUD) (unOR=4.0; p= .017), gastric cancer (unOR=9.5; p= .003), gastric atrophy (unOR=12.8; p< .001), and intestinal metaplasia (unOR=5.0; p< .001) had a significantly higher odds of being H. pylori positive, but after multivariable analyses only gastric atrophy remained significant (aOR=27.3; p< .001). Participants with mucositis had a significantly lower odds of gastric cancer (unOR 0.1; p= .035) while participants with dysplasia had significantly higher odds (unOR 8.0; p= .042), but these were no longer significant after multivariable analyses (aOR=0.2; p= .156 and aOR=18.9; p= .070, respectively). Histology based prevalence of H. pylori infection is lower than previously reported in Jamaica. Gastric atrophy is a significant predictor of H. pylori positivity.
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