Potentially inappropriate medications (PIMs) are highly prevalent in elderly patients with mental disorders (MPHs) treated with polypharmacy. This study's main aim was to determine the impact of a clinical pharmacist (CP)’s recommendations on the total number of PIMs and to evaluate the differences in PIMs between two patient subgroups with mental disorders with either fully or partially accepted recommendations that have not been studied until now.
A retrospective observational cohort study involving primary care patients aged 65 or above in 2015–2017 was conducted. To evaluate the impact of the interventions on the number of PIMs, odds ratios (ORs) were used. Ninety-nine patients were included (79.4 y, SD=7.92). At least one PIM was present in 69.7% or 92.9% of the patients (PRISCUS and Beers list). The interventions led to a 21.2% decrease (n=23; PRISCUS) and a 17.3% decrease (n=38; Beers) (p<0.05). The ORs for PIMs were significantly smaller in the full-acceptance subgroup (OR=3.8, CI 1.4-10.1; Beers) and insignificantly smaller for another group (OR=2.8, CI 1.0-8.2; PRISCUS). The CP's interventions decreased the number of PIMs according to the PRISCUS and the Beers list, and ORs for PIMs decreased if all proposed interventions were accepted.

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Posted 04 Jan, 2021
Posted 04 Jan, 2021
Potentially inappropriate medications (PIMs) are highly prevalent in elderly patients with mental disorders (MPHs) treated with polypharmacy. This study's main aim was to determine the impact of a clinical pharmacist (CP)’s recommendations on the total number of PIMs and to evaluate the differences in PIMs between two patient subgroups with mental disorders with either fully or partially accepted recommendations that have not been studied until now.
A retrospective observational cohort study involving primary care patients aged 65 or above in 2015–2017 was conducted. To evaluate the impact of the interventions on the number of PIMs, odds ratios (ORs) were used. Ninety-nine patients were included (79.4 y, SD=7.92). At least one PIM was present in 69.7% or 92.9% of the patients (PRISCUS and Beers list). The interventions led to a 21.2% decrease (n=23; PRISCUS) and a 17.3% decrease (n=38; Beers) (p<0.05). The ORs for PIMs were significantly smaller in the full-acceptance subgroup (OR=3.8, CI 1.4-10.1; Beers) and insignificantly smaller for another group (OR=2.8, CI 1.0-8.2; PRISCUS). The CP's interventions decreased the number of PIMs according to the PRISCUS and the Beers list, and ORs for PIMs decreased if all proposed interventions were accepted.

Figure 1

Figure 2

Figure 3

Figure 4
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