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Table 3 Comparison of prevalence rates of PIM among the control and intervention groups

From: The impact of a multifaceted intervention to reduce potentially inappropriate prescribing among discharged older adults: a before-and-after study

Type of PIMs according to STOPP criteria Control group N (%) Intervention group N (%)
Drug Indication Criteria
 “Any duplicate drug class prescription” 2 (0.8) 0
Coagulation System
 “Aspirin plus clopidogrel as secondary stroke prevention, unless the patient has a coronary stent(s) inserted in the previous 12 months or concurrent acute coronary syndrome or has a high grade symptomatic carotid arterial stenosis” 3 (1.3) 0
 “Aspirin in combination with vitamin K antagonist, direct thrombin inhibitor or factor Xa inhibitors in patients with chronic atrial fibrillation” 1 (0.4) 0
 “Ticlopidine in any circumstances” 5 (2.1) 7 (2.9)
Central Nervous System and Psychotropic Drugs
  “First-generation antihistamines” 1 (0.4) 1 (0.4)
Renal System
  “NSAID’s if eGFR < 50 ml/min/1.73m2 1 (0.4) 1 (0.4)
  “Metformin if eGFR < 30 ml/min/1.73m2 6 (2.5) 4 (1.7)
Gastrointestinal System
  “Drugs likely to cause constipation in patients with chronic constipation where non-constipating alternatives are available” 1 (0.4) 0
  “Proton pump inhibitor for uncomplicated peptic ulcer disease or erosive peptic oesophagitis at full therapeutic dosage for > 8 weeks” 14 (5.8) 13 (5.4)
Respiratory System
  “Anti-muscarinic bronchodilators with a history of narrow-angle glaucoma or bladder outflow” 2 (0.8) 0
Musculoskeletal System
  “Long-term NSAID or colchicine (> 3 months) for chronic treatment of gout where there is no contraindication to a xanthine-oxidase inhibitor” 2 (0.8) 1 (0.4)
Endocrine System
  “Sulphonylureas with a long duration of action with type 2 diabetes mellitus” 1 (0.4) 0
  “Beta-blockers in diabetes mellitus with frequent hypoglycaemic episodes” 10 (4.2) 4 (1.7)
Drugs that predictably increase the risk of falls in older people
  “Vasodilator drugs with persistent postural hypotension” 23 (9.6) 24 (10%)
Analgesic Drugs
  “Use of regular opioids without concomitant laxative” 0 4 (1.7)