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