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Table 1 Example of a dataset containing 3 patients with 2 ADEs each, in lexicographic order

From: Discovering associations between adverse drug events using pattern structures and ontologies

Patient ADEs  
P1 ({acetaminophen},{ICD 599.9}) ({prednisone},{ICD 599.8})
P2 ({prednisone},{ICD 599.8}) ({prednisone},{ICD 719.4})
P3 ({acetaminophen},{ICD 719.4}) ({acetaminophen, prednisone},
   {ICD 599.9})
  1. Class labels: ICD 599.8 is “other specified disorders of the urethra and urinary tract”, ICD 599.9 is “unspecified disorders of the urethra and urinary tract”, ICD 719.4 is “pain in joint”