The potential role of nontyphoidal salmonellosis in gastric cancer: a nationwide matched cohort study

Background The research is to explore the association between nontyphoidal salmonellosis (NTS) and subsequent gastric cancer. Methods We conducted a retrospective study by analyzing hospitalization dataset from the National Health Insurance Research Database in Taiwan. Patients aged 20 years and old...

Full description

Saved in:
Bibliographic Details
Published in:Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association 2021-03, Vol.24 (2), p.292-301
Main Authors: Chang, Renin, Wei, James Cheng-Chung, Lin, Mei-Chen, Hung, Yao-Min
Format: Article
Language:English
Subjects:
Abdominal Surgery
Adult
Aged
Cancer Research
Cohort analysis
Databases, Factual
Female
Gastric cancer
Gastroenterology
Humans
Incidence
Male
Malignancy
Medicine
Medicine & Public Health
Middle Aged
Oncology
Original Article
Propensity Score
Retrospective Studies
Salmonella
Salmonella Infections - complications
Salmonellosis
Sensitivity analysis
Stomach Neoplasms - epidemiology
Stomach Neoplasms - microbiology
Surgical Oncology
Taiwan - epidemiology
Young Adult
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Background The research is to explore the association between nontyphoidal salmonellosis (NTS) and subsequent gastric cancer. Methods We conducted a retrospective study by analyzing hospitalization dataset from the National Health Insurance Research Database in Taiwan. Patients aged 20 years and older with NTS ( n  = 9 097) admitted between January 1, 2000, and December 31, 2012, were enrolled and followed up until December 31, 2013. The primary outcome was the incidence of gastric cancer. Cox proportional hazards regression was used to estimate the risk of malignancy, accounting for the competing risk of death. In addition, we conducted a sensitivity analysis by propensity score matching and exclusion of malignancy within 1 year observation to minimize measurable confounding and protopathic bias. Negative controls were applied to examine the presence of possible unmeasured confounders in the study. Results The study included 18 194 patients (9097 in each NTS and non-NTS group). The median follow-up time was 7 years. The incidence density rate of gastric cancer was 0.72 per 1000 person-years for the NTS group and 0.40 per 1000 person-years for the non-NTS group. The NTS group had a modestly higher risk of gastric cancer (aHR, 2.02; 95% CI 1.18–3.45) than the non-NTS group. The sensitivity analyses revealed consistent results. Conclusions Patients with NTS are associated with increased risk of subsequent gastric cancer compared with non-NTS patients. Future research is needed to examine whether NTS is parallel, reactive or causative to gastric cancer.
ISSN:1436-3291
1436-3305
DOI:10.1007/s10120-020-01132-x