Irish journal of medical science · 2025
Ecological associations between gastric acid suppressant use and gastrointestinal cancer incidence: a three-decade global study.
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Orayj Khalid
Аннотация
BACKGROUND: Gastric acid suppressants, including proton pump inhibitors (PPIs) and histamine H2-receptor antagonists, are widely used globally. Their long-term safety remains a concern, particularly regarding gastrointestinal cancer risks.
AIMS: To assess population-level associations between gastric acid suppressant use and the incidence of major gastrointestinal cancers, adjusting for potential confounders.
METHODS: This ecological panel study analyzed country-year data from 24 nations (1990-2020). Consumption of acid suppressants (ATC A02B, DDD/1000/day) was obtained from OECD Health Statistics. Age-standardized cancer incidence rates (colorectal, liver, pancreatic, esophageal) were sourced from the GBD 2019 dataset. Multivariable linear mixed-effects models were adjusted for dietary risks, BMI, tobacco, alcohol, antibiotics, NSAIDs, and GDP per capita.
RESULTS: Higher acid suppressant use was significantly associated with increased liver cancer (β = 0.0086; 95% CI 0.0019 to 0.0154; p = 0.0136) and pancreatic cancer (β = 0.0148; 95% CI 0.0068 to 0.0227; p = 0.0004) incidence. No significant associations were found for colorectal or esophageal cancers. Model fit was strongest for liver and pancreatic outcomes.
CONCLUSIONS: While causal inference cannot be drawn from ecological data, the findings suggest a population-level association between gastric acid suppressant consumption and increased liver and pancreatic cancer incidence. These results support the need for cautious prescribing and further research using individual-level data.
AIMS: To assess population-level associations between gastric acid suppressant use and the incidence of major gastrointestinal cancers, adjusting for potential confounders.
METHODS: This ecological panel study analyzed country-year data from 24 nations (1990-2020). Consumption of acid suppressants (ATC A02B, DDD/1000/day) was obtained from OECD Health Statistics. Age-standardized cancer incidence rates (colorectal, liver, pancreatic, esophageal) were sourced from the GBD 2019 dataset. Multivariable linear mixed-effects models were adjusted for dietary risks, BMI, tobacco, alcohol, antibiotics, NSAIDs, and GDP per capita.
RESULTS: Higher acid suppressant use was significantly associated with increased liver cancer (β = 0.0086; 95% CI 0.0019 to 0.0154; p = 0.0136) and pancreatic cancer (β = 0.0148; 95% CI 0.0068 to 0.0227; p = 0.0004) incidence. No significant associations were found for colorectal or esophageal cancers. Model fit was strongest for liver and pancreatic outcomes.
CONCLUSIONS: While causal inference cannot be drawn from ecological data, the findings suggest a population-level association between gastric acid suppressant consumption and increased liver and pancreatic cancer incidence. These results support the need for cautious prescribing and further research using individual-level data.