title: Peptic ulcer and non-steroidal anti-inflammatory agents.
abstract: Aspirin is generally regarded as a cause of gastric ulcer but the role of non-steroidal anti-inflammatory agents and paracetamol in the aetiology of peptic ulcer is unclear. To investigate this we conducted a case control study of 180 matched pairs of peptic ulcer patients and controls obtained from surgical and dermatology outpatient clinics. There were 95 gastric ulcer and 85 duodenal ulcer patients. A statistically and clinically association (relative risk = 5) was found between the regular use of non-steroidal anti-inflammatory agents and gastric ulcer. There was also evidence of positive associations between gastric ulcer and aspirin containing preparations with or without non-steroidal anti-inflammatory agents. By contrast, duodenal ulcer was unrelated to these drugs. Too few patients used paracetamol for any conclusion to be drawn on its role.
mesh_terms: D000082:Acetaminophen / Q000009:adverse effects; D000368:Aged; D000893:Anti-Inflammatory Agents / Q000009:adverse effects*; D001241:Aspirin / Q000009:adverse effects; D004381:Duodenal Ulcer / Q000139:chemically induced; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000139:chemically induced*; D012907:Smoking; D012923:Social Class; D013276:Stomach Ulcer / Q000139:chemically induced
chemical_list: D000893:Anti-Inflammatory Agents; D000082:Acetaminophen; D001241:Aspirin