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Table 3 Drugs involved in preventable and unpreventable adverse drug events according to the anatomical therapeutic and chemical (ATC) classification (one ADE can be due to more than one drug)

From: An observational study of adult admissions to a medical ICU due to adverse drug events

Drugs classification according to ATC classification system Preventable ADE [n (%)] Unpreventable ADE [n (%)] All ADE
Antineoplastic and immunomodulating agents 3 (3 %) 41 (41 %) 44 (20 %)
Cardiovascular system 36 (30 %) 8 (8 %) 44 (20 %)
Blood and blood-forming organs 20 (17 %) 23 (23 %) 43 (20 %)
Nervous system 30 (25 %) 13 (13 %) 43 (20 %)
Systemic hormonal preparation (except sex hormones and insulin) 9 (8 %) 7 (7 %) 16 (7 %)
Anti-infective for systemic use 7 (6 %) 5 (5 %) 12 (5 %)
Alimentary tract and metabolism 4 (3 %) 2 (2 %) 6 (3 %)
Musculoskeletal system 6 (5 %) 0 (0 %) 6 (3 %)
Others 4 (3 %) 1 (1 %) 5 (2 %)
Total 119 (100 %) 100 (100 %) 219 (100 %)
  1. The distribution of ATC classes implied in preventable and unpreventable ADE was compared: P = 2.2 × 10−13