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Do NSAIDs cause dyspepsia? A meta-analysis evaluating alternative dyspepsia definitions
Walter L Straus1, Joshua J Ofman, Catherine MacLean
1AHCPR Southern California Evidence-Based Practice Center, Los Angeles, California, USA.
The American Journal of Gastroenterology
|August 23, 2002
Summary
Nonsteroidal anti-inflammatory drugs (NSAIDs) significantly increase the risk of dyspepsia, particularly when defined strictly by epigastric pain. Standardizing definitions is crucial for understanding NSAID-related gastrointestinal symptoms.
Area of Science:
- Gastroenterology
- Pharmacology
Background:
- Nonsteroidal anti-inflammatory drugs (NSAIDs) are frequently associated with gastrointestinal (GI) symptoms like dyspepsia.
- Variations in terminology for reporting GI symptoms complicate the assessment of NSAID-associated dyspepsia.
Purpose of the Study:
- To assess the relationship between NSAID use and dyspepsia using alternative definitions.
- To investigate how different symptom reporting terminologies influence the observed association.
Main Methods:
- A meta-analysis of randomized, placebo-controlled NSAID trials (duration ≥ 5 days) was conducted.
- Three definitions of dyspepsia were derived: strict (epigastric pain), loose (including nausea, vomiting, etc.), and loose-less-heartburn.
- Random-effects models were used to analyze the risk ratio of dyspepsia.
Main Results:
- A strict definition of dyspepsia (epigastric pain) showed NSAIDs increased risk by 36% (Risk Ratio = 1.36).
- A loose definition yielded a non-significant increase (Risk Ratio = 1.13).
- The loose-less-heartburn definition showed a significant increase (Risk Ratio = 1.19).
Conclusions:
- NSAIDs significantly increase dyspepsia risk when defined by epigastric pain symptoms.
- Findings support the need for a standardized definition of NSAID-related dyspepsia.
- The choice of definition impacts the observed association between NSAIDs and dyspepsia.