Aims: To establish the frequency with which NSAIDs were prescribed to elderly patients after admission to hospital for serious gastrointestinal complications and to study which factors are determinants of the prescription of these contraindicated drugs.
Methods: A retrospective cohort study of patients from The Rotterdam Elderly Study, a prospective population-based cohort study of people older than 55 years of age was carried out. Elderly patients with a hospital admission for serious gastrointestinal complications were followed until prescription of an NSAID, death, removal to another area or end of the study period, whichever came first. The following baseline determinants for receiving a contraindicated prescription were studied: gender, age, presence of rheumatoid arthritis or osteoarthritis, presence of cardiovascular risk factors, number of GP visits, number of visits to a medical specialist, cognitive function and the prescriber being a GP or a medical specialist.
Results: Prescriptions of an NSAID after discharge from hospital, were identified in 73 patients (73%). Fifty-one percent were prescribed aspirin of whom the large majority used it as an antithrombotic agent, and 49% were prescribed a nonaspirin NSAID after discharge from hospital. Twenty percent of the patients used more than one NSAID on one or more occasions after discharge. For patients who were prescribed NSAIDs before admission as well as after discharge, the proportion of contraindicated prescriptions with concomitant use of antiulcer drugs rose significantly from 0.19 before discharge to 0.60 after discharge for aspirin and from 0.11 to 0.61 for nonaspirin NSAIDs. In the multivariate analysis the only remaining factor with prognostic influence on prescription of NSAIDs was a history of NSAID use before cohort enrollment. A history of rheumatoid arthritis or osteoarthritis was not associated with NSAID prescription after discharge.
Conclusions: Contraindicated NSAIDs are prescribed to a great extent in elderly patients, despite their greater vulnerability for life-threatening gastrointestinal blood loss. It is remarkable that a history of rheumatoid arthritis or osteoarthritis is no significant determinant for receiving a contraindicated prescription, which suggests that these drugs are mainly prescribed for uncomplicated arthralgia.