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The relative gastrointestinal toxicity of the nonsteroidal anti-inflammatory drugs
Abstract:
To assess the relative rate or upper gastrointestinal (UGI) tract bleeding associated with nonsteroidal anti-inflammatory drugs (NSAIDs), we performed a retrospective cohort study using 1980 billing data from all Medicaid patients in the states of Michigan and Minnesota. The rate of UGI tract bleeding in the 30 days following each drug exposure was examined in the 88,044 patients dispensed only one of seven NSAIDs. The rate of UGI tract bleeding differed significantly among users of these drugs. Stratification and logistic regression were used to adjust for multiple potential confounding factors, without substantive changes in the results. An alcohol-drug interaction was found. Sulindac users had the highest rate of UGI tract bleeding, and it was the only drug statistically different from ibuprofen. When the average daily dose of sulindac received was divided by the maximum recommended daily dose, it was notably higher than those for other drugs. Repeated analyses using data from 1982 confirmed these results. We conclude that there are significant and consistent differences in the incidence of UGI tract bleeding associated with the use of NSAIDs in this population.
Insights
Nonsteroidal anti-inflammatory drugs (NSAIDs) show varying upper gastrointestinal (UGI) bleeding risks. Sulindac users experienced the highest UGI bleeding rates, suggesting significant drug-specific differences in NSAID safety.
Area of Science:
- Gastroenterology
- Pharmacology
- Epidemiology
Background:
- Nonsteroidal anti-inflammatory drugs (NSAIDs) are widely used for pain and inflammation.
- Upper gastrointestinal (UGI) bleeding is a known risk associated with NSAID use.
Purpose of the Study:
- To compare the relative rates of UGI tract bleeding among users of different NSAIDs.
- To identify specific NSAIDs with potentially higher risks of UGI bleeding.
Main Methods:
- Retrospective cohort study utilizing Medicaid billing data from Michigan and Minnesota (1980, 1982).
- Examined 88,044 patients dispensed a single NSAID, analyzing UGI bleeding within 30 days of exposure.
- Employed stratification and logistic regression to control for confounding factors.
Main Results:
- Significant differences in UGI tract bleeding rates were observed among NSAID users.
- Sulindac was associated with the highest rate of UGI tract bleeding, significantly differing from ibuprofen.
- An interaction between alcohol and NSAIDs was identified.
- Higher average daily doses of sulindac relative to the maximum recommended dose were noted.
Conclusions:
- There are significant and consistent variations in the incidence of UGI tract bleeding across different NSAIDs.
- Sulindac may pose a higher risk for UGI bleeding compared to other NSAIDs, potentially related to dosing.
- Findings highlight the importance of considering drug-specific risks when prescribing NSAIDs.
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