Potentially inappropriate medication in older adults that have the capacity to induce cognitive impairment: prevalence and associated factos
DOI:
https://doi.org/10.30968/jhphs.2025.164.1309Abstract
Objective: To investigate the prevalence of use of potentially inappropriate medications for older adults that have the capacity to induce cognitive impairment (PIMs-cog) and associated factors. Methods: Cross-sectional study with quantitative approach. PIMs-cog include drugs with anticholinergic, sedative, hypnotic effects and others capable of inducing delirium. Older adults were interviewed in two outpatient clinics of teaching hospitals in Belo Horizonte and in homes in the metropolitan region. The independent variables were divided into sociodemographic, pharmacotherapeutic and clinical-functional variables. The descriptive analysis included determination of the frequency of proportion for categorical variables and measures of central tendency and dispersion for numerical variables. Normality was assessed by the Shapiro-Wilk test. Univariate analysis was performed by Pearson’s chi-square test. Variables with p<0.20 were included in the multivariate analysis. In the final model, variables with p<0.05 remained. Results: A total of 344 older adults, with a median age of 67.5 years, participated in this study. PIMs-cog was used by 14.5% of older adults. The use of at least one PIM-cog was independently associated with the presence of polypharmacy (OR = 5.84, CI = 2.67–12.80, p = 0.00), cancer (OR = 5.07, CI = 2.18–11.76, p = 0.00), neuropsychiatric diseases (OR = 4.09, CI = 2.03–8.25, p = 0.00) and rheumatic disease (OR = 2.06, CI = 1.04–4.06, p = 0.04). Conclusion: The prevalence of PIM-cog use was 14.5% in the sample investigated and showed a positive and independent association with polypharmacy, cancer, neuropsychiatric diseases and rheumatic diseases.
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