Albertsen N, Sommer TG, Olsen TM, Prischl A, Kallerup H, Andersen S. Polypharmacy and potential drug–drug interactions among Greenland’s care home residents.
Ther Adv Drug Saf 2022;
13:20420986221103918. [PMID:
35784387 PMCID:
PMC9243492 DOI:
10.1177/20420986221103918]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 05/09/2022] [Indexed: 11/21/2022] Open
Abstract
Background:
As lifetime expectancy in Greenland is steadily increasing, so is the
proportion of elderly Greenlanders. Old age is associated with polypharmacy,
and in this study, we aim to describe the prevalence and characteristics of
polypharmacy among the care home residents in Greenland.
Methods:
Eight care homes in Greenland were visited between 2010 and 2016.
Questionnaires including information on prescribed medication and
comorbidities were collected and analyzed. Drugs were categorized according
to Anatomical Therapeutic Chemical (ATC) category, and potential drug–drug
interactions (pDDIs) were assessed using the Danish Interaction Database.
Polypharmacy was defined as five or more prescribed drugs.
Results:
All 244 eligible residents were included in the study. The median number of
prescribed drugs per resident was six, and women were prescribed more drugs
than men (median six versus five). More than 60% of all
residents fulfilled the criteria for polypharmacy. The residents in the
polypharmacy group had a higher body mass index (26.9
versus 24.3) and more chronic diseases (median two
versus one), and more often pulmonary (14%
versus 1%) or endocrine disease (22%
versus 2%) than in the non-polypharmacy group. The most
prescribed drugs belonged to ATC category N (nervous
system, 78% of the residents). Finally, pDDIs were found among 61% of the
residents and were more common in the capital (77%), which also had the
highest proportion of residents with polypharmacy (77%).
Conclusion:
This is the first study to describe the patterns of polypharmacy and pDDIs
among the elderly in care homes in Greenland. Our findings indicate that
polypharmacy is as common in Greenland as elsewhere in the Western world,
but there are local differences in the prevalence.
Plain Language Summary
Polypharmacy among the elderly in care homes in Greenland
The lifetime expectancy of the Greenlandic population is increasing, and so
is the number of elderly Greenlanders. Previous studies have shown that the
elderly have a higher risk of being treated with five drugs or more which is
called polypharmacy. Polypharmacy can cause unwanted interactions and side
effects. In this study, we examine the characteristics of the residents in
Greenlandic care homes belonging to this group.
Using questionnaires, we gathered information from 244 residents from care
homes in eight different towns and settlements in Greenland. Data included
types of medication prescribed to the resident, age, gender, cause of stay,
and medical history, which allowed us to compare the results between genders
and towns.
We found that among 244 residents, more than half of all residents were
prescribed five or more different drugs, and women were generally prescribed
more drugs than men. Those prescribed five or more drugs had a higher body
mass index and more diseases than those prescribed fewer drugs. We also
found that certain types of medication, mainly painkillers, were the most
prescribed. Finally, residents in the care home in Greenland’s capital Nuuk
were more often prescribed five or more drugs than elsewhere in Greenland,
indicating local differences in Greenland.
Our results give an essential insight into the health and medication of the
most fragile elderly in Greenland. Polypharmacy seems to be as common here
as elsewhere in the Western world and is a point of focus.
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