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Table 2 Number of Inappropriate Prescriptions (%) according to classification by McLeod et al. (of original 38 recommendations).

From: Development and use of a computer program to detect potentially inappropriate prescribing in older adults residing in Canadian long-term care facilities

Practice – McLeod Guideline

Our Definition using drug prescription surrogates

Inappropriate Prescriptions n (%)

Total inappropriate practices – Cardiovascular diseases

 

6 (7.2)

γ#Prescription of B-adrenergic blocking agent to treat hypertension for patients with history of asthma or COPD

Prescription of B-adrenergic blocking agent with B-agonist or bronchial anti-inflammatory agent

5 (6.0)

#Prescription of disopyramide to treat atrial fibrillation

Prescription of disopyramide

0 (0.0)

γ#Prescription of thiazide diuretic to treat hypertension for patients with history of gout

Prescription of thiazide diuretics with gout medication (e.g. allopurinol)

1 (1.2)

Total inappropriate practices – Psychotropic Drugs

 

30 (36.1)

*#Long-term prescription of long half-life benzodiazepine to treat insomnia

Long-term prescription of any long half-life benzodiazepine (e.g. valium)

4 (4.8)

#γPrescription of tricyclic antidepressants to treat depression for patients with history of glaucoma, benign prostatic hyperplasia, or heart block

Prescription of tricyclic antidepressant with glaucoma or prostate medication

8 (13.6)

*#Long-term prescription of barbituate to treat insomnia

Long-term prescription of any barbituate

1 (1.2)

#Prescription of selective serotonin reuptake inhibitor for patients already receiving a monoamine oxidase inhibitor to treat depression

Prescription of selective serotonin reuptake inhibitor for patients already receiving a monoamine oxidase inhibitor

0 (0.0)

*#Long term prescription of triazolam to treat insomnia

Long-term prescription of triazolam

0 (0.0)

#Prescription of chlorpromazine to treat psychosis for patients with history of postural hypotension

Prescription of chlorpromazine

0 (0.0)

#Prescription of nylidrin, niacin, pentoxifylline to treat dementia

Prescription of nylidrin, niacin or pentoxifylline

0 (0.0)

#Prescription of tricyclic antidepressants with active metabolites to treat depression

Prescription of tricyclic antidepressants

17 (20.5)

#Prescription of methylphenidate to treat depression

Prescription of methylphenidate

0 (0.0)

Total inappropriate practices – NSAIDS and other analgesics

 

39 (47.0)

⊥#γPrescription of NSAIDS to treat osteoarthritis for patients with a history of peptic ulcer

Prescription of NSAIDS with histamine 2 antagonists or proton pump inhibitors

5 (6.0)

*Long term prescription of meperidine or pentazocine for pain

Long term prescription of meperidine or pentazocine

0 (0.0)

⊥#Prescription of NSAIDS to treat osteoarthritis for patients taking warfarin

Prescription of NSAIDS with warfarin

3 (3.6)

⊥#*γ+Long-term prescription of NSAIDS to treat osteoarthritis for patients with history of heart failure or hypertension

Prescription of NSAIDS with diuretics

13 (15.7)

*#Long term prescription of piroxicam, ketorolac, or mefenamic acid to treat pain

Long term prescription of piroxicam, ketorolac or mefenamic acid

0 (0.0)

*#γLong term prescription of indomethacin to treat gout

Long term prescription of indomethacin with gout medication (e.g. allopurinol)

 

⊥#*Long term prescription of NSAIDS to treat osteoarthritis

Long term prescription of NSAIDS

18 (21.7)

Total inappropriate practices – miscellaneous drugs

 

8 (9.6)

#Prescription of cimetidine to treat peptic ulcer for patients already receiving warfarin

Prescription of cimetidine with warfarin

1 (1.2)

#Prescription of anticholinergic drugs to prevent extrapyramidal effects of antipsychotic drugs

Prescription of anticholinergic drugs (e.g. congentin) with antipsychotic drugs (e.g. risperdal)

6 (7.2)

#*Long term prescription of diphyenoxylate to treat diarrhea

Long term prescription of diphenoxylate

0 (0.0)

#Prescription of cyclobenzaprine or methocarbamol to treat muscle spasms

Prescription of cyclobenzaprin or methocarbamol

1 (1.2)

  1. *Prescribed longer than 2 weeks, +Recommendations from McLeod guidelines grouped together, γRecommendations from McLeod guidelines that were modified by using drug prescriptions as surrogates for disease states #Assumption made that drug only used in treatment of specified disease ⊥Excluding ASA (combination or alone) as an inappropriate prescription, including all other NSAIDS