| 1. |
- Kerry, Miriam, et al.
(författare)
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Multiple antihypertensive use and risk of mortality in residents of aged care services : a prospective cohort study
- 2020
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Ingår i: Aging Clinical and Experimental Research. - : Springer Science and Business Media LLC. - 1594-0667 .- 1720-8319. ; 32:8, s. 1541-1549
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Tidskriftsartikel (refereegranskat)abstract
- Aims The objective of this study is to investigate the association between multiple antihypertensive use and mortality in residents with diagnosed hypertension, and whether dementia and frailty modify this association.Methods This is a two-year prospective cohort study of 239 residents with diagnosed hypertension receiving antihypertensive therapy across six residential aged care services in South Australia. Data were obtained from electronic medical records, medication charts and validated assessments. The primary outcome was all-cause mortality and the secondary outcome was cardiovascular-related hospitalizations. Inverse probability weighted Cox models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for all-cause mortality. Covariates included age, sex, dementia severity, frailty status, Charlson's comorbidity index and cardiovascular comorbidities.Results The study sample (mean age of 88.1 +/- 6.3 years; 79% female) included 70 (29.3%) residents using one antihypertensive and 169 (70.7%) residents using multiple antihypertensives. The crude incidence rates for death were higher in residents using multiple antihypertensives compared with residents using monotherapy (251 and 173/1000 person-years, respectively). After weighting, residents who used multiple antihypertensives had a greater risk of mortality compared with monotherapy (HR 1.40, 95%CI 1.03-1.92). After stratifying by dementia diagnosis and frailty status, the risk only remained significant in residents with diagnosed dementia (HR 1.91, 95%CI 1.20-3.04) and who were most frail (HR 2.52, 95%CI 1.13-5.64). Rate of cardiovascular-related hospitalizations did not differ among residents using multiple compared to monotherapy (rate ratio 0.73, 95%CI 0.32-1.67).Conclusions Multiple antihypertensive use is associated with an increased risk of mortality in residents with diagnosed hypertension, particularly in residents with dementia and among those who are most frail.
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| 2. |
- Lalic, Samanta, et al.
(författare)
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Polypharmacy and Medication Regimen Complexity as Risk Factors for Hospitalization Among Residents of Long-Term Care Facilities : A Prospective Cohort Study
- 2016
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Ingår i: Journal of the American Medical Directors Association. - : Elsevier BV. - 1525-8610 .- 1538-9375. ; 17:11, s. 1067.e1-1067.e6
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To investigate the association between polypharmacy and medication regimen complexity with time to first hospitalization, number of hospitalizations, and number of hospital days over a 12-month period. Design: A 12-month prospective cohort study. Participants and Setting: A total of 383 residents of 6 Australian long-term care facilities (LTCFs). Measurements: The primary exposures were polypharmacy (>= 9 regular medications) and the 65-item Medication Regimen Complexity Index (MRCI). Cox proportional hazards regression was used to compute hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between polypharmacy and MRCI with time to first hospitalization. Poisson regression was used to compute incident rate ratios (IRR) and 95% CIs for the association between polypharmacy and MRCI with number of hospitalizations and number of hospital days. Models were adjusted for age, sex, length of stay in LTCF, comorbidities, activities of daily living, and dementia severity. Results: There were 0.56 (95% CI 0.49-0.65) hospitalizations per person-year and 4.52 (95% CI 4.31-4.76) hospital days per person-year. In adjusted analyses, polypharmacy was associated with time to first hospitalization (HR 1.84; 95% CI 1.21-2.79), number of hospitalizations (IRR 1.51; 95% CI 1.09-2.10), and hospital days per person-year (IRR 1.39; 95% CI 1.24-1.56). Similarly, in adjusted analyses a 10-unit increase in MRCI was associated with time to first hospitalization (HR 1.17; 95% CI 1.06-1.29), number of hospitalizations (IRR 1.15; 95% CI 1.06-1.24), and hospital days per person-year (IRR 1.19; 95% CI 1.16-1.23). Conclusions: Polypharmacy and medication regimen complexity are associated with hospitalizations from LTCFs. This highlights the importance of regular medication review for residents of LTCFs and the need for further research into the risk-to-benefit ratio of prescribing in this setting.
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| 3. |
- Wang, Kate N., et al.
(författare)
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Proton Pump Inhibitors and Infection-Related Hospitalizations Among Residents of Long-Term Care Facilities : A Case-Control Study
- 2019
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Ingår i: Drugs & Aging. - : Springer Science and Business Media LLC. - 1170-229X .- 1179-1969. ; 36:11, s. 1027-1034
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Tidskriftsartikel (refereegranskat)abstract
- Objective Our objective was to investigate associations between proton pump inhibitor (PPIs) use and infection- related hospitalizations among residents of long-term care facilities ( LTCFs).Methods This was a case-control study of residents aged = 65 years admitted to hospital between July 2013 and June 2015. Residents admitted for infections (cases) and falls or fall-related injuries (controls) were matched for age (+/- 2 years), sex, and index date of admission (+/- 6 months). Conditional logistic regression was used to estimate crude and adjusted odds ratios (aORs) and 95% confidence intervals (CIs) for associations between PPI use and infection-related hospitalizations. Analyses were adjusted for age, sex, polypharmacy, diabetes, heart failure, chronic obstructive pulmonary disease, myocardial infarction, cerebrovascular accident, and concomitant use of cancer and immunosuppressant medications. Subgroup analyses were performed for high- and low/moderate-intensity PPIs and for respiratory and non-respiratory infections. Logistic regression was used to compare the odds of infection- related hospitalizations among users of high- and low/moderate-intensity PPIs.Results Overall, 181 cases were matched to 354 controls. Preadmission PPI use was associated with infection-related hospitalizations (aOR 1.66; 95% CI 1.11-2.48). In subgroup analyses, the association was apparent only for respiratory infections (aOR 2.26; 95% CI 1.37-3.73) and high-intensity PPIs (aOR 1.93; 95% CI 1.23-3.04). However, the risk of infection-related hospitalization was not significantly higher among users of high- versus low/moderate-intensity PPIs (aOR 1.25; 95% CI 0.74-2.13).Conclusion Residents who use PPIs may be at increased risk of infection-related hospitalizations, particularly respiratory infections. Study findings provide further support for initiatives to minimize unnecessary PPI use in the LTCF setting.
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| 4. |
- Wang, Kate N., et al.
(författare)
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Use of Falls Risk Increasing Drugs in Residents at High and Low Falls Risk in Aged Care Services
- 2021
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Ingår i: Journal of Applied Gerontology. - : SAGE Publications. - 0733-4648 .- 1552-4523. ; 40:1, s. 77-86
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Tidskriftsartikel (refereegranskat)abstract
- Falls are associated with considerable morbidity and mortality in aged care services and falls risk increasing drugs (FRIDs) are often overlooked as a contributor to falls. This study aims to investigate the association between the risk of falling and use of FRIDs from aged care services. Inverse-probability-weighted multinomial logistic regression was used to estimate the association between falls risk and regular FRIDs in 383 residents from six Australian aged care services. Overall, residents at high and low falls risk had similar prevalence of FRIDs. Prevalence of antipsychotics and sedative-hypnotics was low. Residents at high falls risk had higher adjusted odds of using >= 2 psychotropic medications (odds ratio [OR] = 1.75, 95% confidence interval [CI] = 1.17-2.61) and >= 2 medications that cause/worsen orthostatic hypotension (OR = 3.59, 95% CI = 2.27-5.69). High prevalence of FRIDs was mainly attributable to medications for which residents had clinical indications. Clinicians appeared to have largely avoided FRIDs that explicit criteria deem potentially inappropriate for high falls risk.
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