One in three British Columbian women aged 65 years and older received inappropriate prescription drugs in 2013, says a study by researchers at the University of British Columbia. One in four men of the same age received similar prescriptions.
"The effect of a patient's sex on the risk of inappropriate prescribing is of tremendous clinical and social concern," said Steve Morgan, professor in UBC's school of population and public health and principal investigator for the study.
‘Elderly people are prescribed inappropriate drugs, despite increased awareness among doctors and pharmacists of the harms associated with prescribing certain medications.’
AdvertisementThe work analyzed population-based healthcare datasets to find out which medical and non-medical factors influence patients' risk of receiving prescription drugs on the American Geriatrics Society's list of drugs that should be avoided for older patients. The biggest non-medical risk factor was an individual's sex.
The authors found that, even when results were adjusted for all other risk factors, women were as much as 23 percent more likely than men to be prescribed inappropriate drugs.
Despite increased awareness among doctors and pharmacists of the harms associated with prescribing certain medications to older patients, the study found older British Columbians continue to routinely receive inappropriate prescriptions. The study also found that women were much more likely to receive medications in general than men.
"Being a woman is double jeopardy when it comes to taking medications," said Dr. Cara Tannenbaum, scientific director of the Canadian Institutes of Health Research's Institute of Gender and Health. "Women metabolize drugs differently than men. Gender roles and social circumstances also place them at risk. However, I expect that by empowering women with knowledge about the harms of sleeping pills and other medications, we can help drive decisions to try switching to safer therapies."
The findings of this study - including sex differences in the effects of income, ethnicity, and marriage - suggest that the elevated risks that women face are a result of complex issues intersecting between social, gender and authority relationships.
"For men, being married or in a high-income bracket reduced the risk of receiving inappropriate prescriptions. These factors had no significant effect on women. On the other hand, being Chinese or South Asian significantly lowered women's risk of receiving an inappropriate prescription, but did not affect men's risks," said Morgan.
Researchers concluded that the sex differences in older adults' risk of receiving a potentially inappropriate prescription were significantly influenced by social dynamics, including differences in patients' care-seeking and caregiving behaviors, as well as differences in the relationships and communications between patients and providers.
The study authors concluded that solutions to the problem of potentially inappropriate prescribing would require investment in conventional, clinical tools to assist with de-prescribing potentially inappropriate medications. They also recommend that more nuanced solutions will be needed to address how gender - on its own and interacting with age, wealth and ethnicity - affect the norms of and relationships between prescribers and patients.
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