Medicines use and polypharmacy in retirement village residents in Aotearoa New Zealand
Hikaka J, Wu Z, Boyd M, Connolly MJ, Broad J, Calvert C, Tatton A, Peri K, & Bloomfield K. 2024. Medicines use and polypharmacy in retirement village residents in Aotearoa New Zealand: a point prevalence observational study. Journal of Primary Health Care 16(4) 407-411. doi: 10.1071/HC24038
Introduction: Polypharmacy increases the risk of medicines-related harm, including falls, in older adults. Falls have a significant impact on quality of life and health system resources. Little is known about medicine use in retirement village residents in Aotearoa New Zealand
Aim: Our study aimed to describe medicine use and the point prevalence of polypharmacy among a cohort of retirement village residents in Auckland, New Zealand
Methods: Data collection occurred from July 2016 to June 2018. Eligible participants (those residing permanently in a retirement village) were recruited from retirement villages in Auckland, New Zealand. Medicines use data were collected using an interRAI assessment tool. Descriptive statistics, t-tests and Chi-squared tests were used for analysis.
Results: A total of 578 residents were recruited from 33 retirement villages and the median age was 81.6 years. Participants took a mean of 4.8 regular medicines (standard deviation = 2.9) and 0.7 ‘as required’ medicines. Anti-hypertensives (68.5%), lipid-lowering medicines (45.2%), antacids (39.4%) and antiplatelet agents (37.9%) were the most prescribed medicine classes. Polypharmacy (five-plus medicines; 51.8%) was common and hyperpolypharmacy (10-plus medicines; 5.7%) occurred infrequently.
Discussion: This study provides insight into medicines use by retirement village residents in Auckland, New Zealand. Medicines used for primary and secondary prevention of cardiovascular disease were used most commonly and polypharmacy was common. Active review of retirement village residents’ medicines is warranted, based on these findings and increasing evidence regarding the use of medicines, including those for primary prevention of cardiovascular disease.
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