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Abstract
Background There is concern about widespread medication use by people with intellectual disability (ID), especially psychotropic and anticonvulsant agents. However, there is sparse information on prescribing patterns in Australia.
Method This cross-sectional study was conducted between 2000 and 2002 among adults with ID who live in the community in Brisbane, Australia. Medication data were extracted from a health screening tool. Demographic and medical data were collected from telephone interviews and medical records.
Results Of 117 participants, 35% were prescribed psychotropic medications, most commonly antipsychotics, and 26% anticonvulsants. Complementary medications (vitamins, minerals, amino acids, fish oil, and herbal products) were used by 29% of participants. After adjusting for potentially confounding variables, psychotropic medication use was significantly associated with having a psychiatric illness (adjusted odds ratio = 4.6, 95% CI [1.0, 20.6]) and challenging behaviours (4.4, [1.1, 17.3]).
Conclusions People with ID use a broad range of medications. Psychotropic medications continue to be the most predominant agents prescribed for this population. Psychotropic medication use is positively associated with having a psychiatric illness and challenging behaviours.
Acknowledgements
We thank all participants and the Mater Hospital Brisbane for its ongoing support. The views expressed in this work are those of the authors.
Declaration of interest: The University of Queensland owns the Comprehensive Health Assessment Programme (CHAP) and receives a licensing fee from organisations that use the CHAP. One third of this licensing fee is paid to N. G. Lennox.