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Gagnon ME, Mésidor M, Simard M, Chiu YM, Gosselin M, Candas B, Sirois C. A comparative analysis of medication counting methods to assess polypharmacy in medico-administrative databases. Res Social Adm Pharm 2024:S1551-7411(24)00175-X. [PMID: 38797631 DOI: 10.1016/j.sapharm.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 05/04/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND The variety of methods for counting medications may lead to confusion when attempting to compare the extent of polypharmacy across different populations. OBJECTIVE To compare the prevalence estimates of polypharmacy derived from medico-administrative databases, using different methods for counting medications. METHODS Data were drawn from the Québec Integrated Chronic Disease Surveillance System. A random sample of 110,000 individuals aged >65 was selected, including only those who were alive and covered by the public drug plan during the one-year follow-up. We used six methods to count medications: #1-cumulative one-year count, #2-average of four quarters' cumulative counts, #3-count on a single day, #4-count of medications used in first and fourth quarters, #5-count weighted by duration of exposure, and #6-count of uninterrupted medication use. Polypharmacy was defined as ≥5 medications. Cohen's Kappa was calculated to assess the level of agreement between the methods. RESULTS A total of 93,516 (85 %) individuals were included. The prevalence of polypharmacy varied across methods. The highest prevalence was observed with cumulative methods (#1:74.1 %; #2:61.4 %). Single day count (#3:47.6 %), first and fourth quarters count (#4:49.5 %), and weighted count (#5:46.6 %) yielded similar results. The uninterrupted use count yielded the lowest estimate (#6:35.4 %). The weighted method (#5) showed strong agreement with the first and fourth quarters count (#4). Cumulative methods identified higher proportions of younger, less multimorbid individuals compared to other methods. CONCLUSION Counting methods significantly affect polypharmacy prevalence estimates, necessitating their consideration when comparing and interpretating results.
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Affiliation(s)
- Marie-Eve Gagnon
- Faculté de pharmacie, Université Laval, Québec, Canada; Département des sciences de la santé, Université du Québec à Rimouski (UQAR), Rimouski, Québec, Canada
| | - Miceline Mésidor
- Département de médecine sociale et préventive, Université Laval, Québec, Canada; Centre de recherche du CHU de Québec - Université Laval, Québec, Canada
| | - Marc Simard
- Département de médecine sociale et préventive, Université Laval, Québec, Canada; Centre de recherche du CHU de Québec - Université Laval, Québec, Canada; Institut national de santé publique du Québec, Québec, Canada; Centre d'excellence sur le vieillissement de Québec, VITAM - Centre de recherche en santé durable, Québec, Canada
| | - Yohann M Chiu
- Faculté de pharmacie, Université Laval, Québec, Canada; Centre de recherche du CHU de Québec - Université Laval, Québec, Canada; Institut national de santé publique du Québec, Québec, Canada
| | - Maude Gosselin
- Département de médecine sociale et préventive, Université Laval, Québec, Canada; Institut national de santé publique du Québec, Québec, Canada
| | - Bernard Candas
- Département de médecine sociale et préventive, Université Laval, Québec, Canada
| | - Caroline Sirois
- Faculté de pharmacie, Université Laval, Québec, Canada; Centre de recherche du CHU de Québec - Université Laval, Québec, Canada; Institut national de santé publique du Québec, Québec, Canada; Centre d'excellence sur le vieillissement de Québec, VITAM - Centre de recherche en santé durable, Québec, Canada.
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Dingle SE, Bowe SJ, Bujtor M, Milte CM, Daly RM, Byles J, Cavenagh D, Torres SJ. Data-driven lifestyle patterns and risk of dementia in older Australian women. Alzheimers Dement 2024; 20:798-808. [PMID: 37777990 PMCID: PMC10916984 DOI: 10.1002/alz.13467] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/17/2023] [Accepted: 07/27/2023] [Indexed: 10/03/2023]
Abstract
INTRODUCTION Many lifestyle factors have been associated with dementia, but there is limited evidence of how these group together. The aim of this study was to examine the clustering of lifestyle behaviors and associations with dementia. METHODS This population-based study included 9947 older Australian women. Latent class analysis was employed to identify distinct lifestyle classes, and Cox proportional hazard regression compared these with incident dementia over 17 years. RESULTS Three classes were identified: (1) "highly social and non-smokers" (54.9%), (2) "highly social, smokers, and drinkers" (25.1%), and (3) "inactive and low socializers" (20.0%). Women in Class 3 exhibited a higher risk of dementia compared to both Class 1 (hazard ratio [HR] = 1.19, 95% confidence interval [CI]: 1.08 to 1.30) and Class 2 (HR = 1.12, 95% CI: 1.00 to 1.25). DISCUSSION A lifestyle pattern characterized by physical inactivity and low social engagement may be particularly detrimental for dementia risk in older women and should be prioritized in preventive strategies. HIGHLIGHTS Latent class analysis was employed to identify distinct lifestyle clusters. Three lifestyle-related clusters were differentially associated with dementia risk. Inactive and low socializers exhibited the greatest risk of dementia. Targeting physical inactivity and low social engagement in prevention is vital.
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Affiliation(s)
- Sara E Dingle
- Institute for Physical Activity and NutritionSchool of Exercise and Nutrition SciencesDeakin UniversityVictoriaAustralia
| | - Steven J Bowe
- Biostatistics UnitFaculty of HealthDeakin UniversityVictoriaAustralia
- Faculty of HealthVictoria University of WellingtonWellingtonNew Zealand
| | - Melissa Bujtor
- Institute for Physical Activity and NutritionSchool of Exercise and Nutrition SciencesDeakin UniversityVictoriaAustralia
- StressPsychiatry and Immunology LaboratoryDepartment of Psychological MedicineInstitute of PsychiatryPsychology & Neuroscience, King's CollegeLondonUK
| | - Catherine M Milte
- Institute for Physical Activity and NutritionSchool of Exercise and Nutrition SciencesDeakin UniversityVictoriaAustralia
| | - Robin M Daly
- Institute for Physical Activity and NutritionSchool of Exercise and Nutrition SciencesDeakin UniversityVictoriaAustralia
| | - Julie Byles
- Centre for Women's Health ResearchThe University of NewcastleNew South WalesAustralia
| | - Dominic Cavenagh
- Centre for Women's Health ResearchThe University of NewcastleNew South WalesAustralia
| | - Susan J Torres
- Institute for Physical Activity and NutritionSchool of Exercise and Nutrition SciencesDeakin UniversityVictoriaAustralia
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Zhao M, Chen Z, Xu T, Fan P, Tian F. Global prevalence of polypharmacy and potentially inappropriate medication in older patients with dementia: a systematic review and meta-analysis. Front Pharmacol 2023; 14:1221069. [PMID: 37693899 PMCID: PMC10483131 DOI: 10.3389/fphar.2023.1221069] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/03/2023] [Indexed: 09/12/2023] Open
Abstract
Background: Older patients with dementia always need multiple drugs due to comorbidities and cognitive impairment, further complicating drug treatment and increasing the risk of potentially inappropriate medication. The objective of our study is to estimate the global prevalence of polypharmacy and potentially inappropriate medication (PIM) and explore the factors of PIM for older patients with dementia. Methods: We searched PubMed, Embase (Ovid), and Web of Science databases to identify eligible studies from inception to 16 June 2023. We conducted a meta-analysis for observational studies reporting the prevalence of potentially inappropriate medication and polypharmacy in older patients with dementia using a random-effect model. The factors associated with PIM were meta-analyzed. Results: Overall, 62 eligible studies were included, of which 53 studies reported the prevalence of PIM and 28 studies reported the prevalence of polypharmacy. The pooled estimate of PIM and polypharmacy was 43% (95% CI 38-48) and 62% (95% CI 52-71), respectively. Sixteen studies referred to factors associated with PIM use, and 15 factors were further pooled. Polypharmacy (2.83, 95% CI 1.80-4.44), diabetes (1.31, 95% CI 1.04-1.65), heart failure (1.17, 95% CI 1.00-1.37), depression (1.45, 95% CI 1.14-1.88), history of cancer (1.20, 95% CI 1.09-1.32), hypertension (1.46, 95% CI 1.05-2.03), ischemic heart disease (1.55, 95% CI 0.77-3.12), any cardiovascular disease (1.11, 95% CI 1.06-1.17), vascular dementia (1.09, 95% CI 1.03-1.16), chronic obstructive pulmonary disease (1.39, 95% CI 1.13-1.72), and psychosis (1.91, 95% CI 1.04-3.53) are positively associated with PIM use. Conclusion: PIM and polypharmacy were highly prevalent in older patients with dementia. Among different regions, the pooled estimate of PIM use and polypharmacy varied widely. Increasing PIM in older patients with dementia was closely associated with polypharmacy. For other comorbidities such as heart failure and diabetes, prescribing should be cautioned.
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Affiliation(s)
| | | | | | - Ping Fan
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Fangyuan Tian
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Xiao X, Xiang S, Xu Q, Li J, Xiao J, Si Y. Comorbidity among inpatients with dementia: a preliminary cross-sectional study in West China. Aging Clin Exp Res 2023; 35:659-667. [PMID: 36754914 PMCID: PMC9908504 DOI: 10.1007/s40520-023-02349-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 01/11/2023] [Indexed: 02/10/2023]
Abstract
OBJECTIVE To investigate comorbidities among hospitalized patients with dementia. METHOD Data were extracted from the discharge records in our hospital. Comorbidities based on ICD-10 were selected from the Charlson Comorbidity Index (CCI) and Elixhauser Comorbidity Index (ECI). The distributions of these comorbidities were described in dementia inpatients and age- and sex-matched nondementia controls, as well as in inpatients with Alzheimer's disease and vascular dementia. A logistic regression model was applied to identify dementia-specific morbid conditions. RESULTS A total of 3355 patients with dementia were included, with a majority of 1503 (44.8%) having Alzheimer's disease, 395 (11.8%) with vascular dementia, and 441 (13.1%) with mixed dementia. The mean number of comorbidities was 3.8 in dementia patients (vs. 2.9 in controls). The most prevalent comorbidities in inpatients with dementia compared with those without dementia were cerebral vascular disease (73.0% vs. 35.9%), hypertension (62.8% vs. 56.2%), and peripheral vascular disease (53.7% vs. 31.2%). Comorbidities associated with dementia included epilepsy (OR 4.8, 95% CI 3.5-6.8), cerebral vascular disease (OR 4.1, 95% CI 3.7-4.5), depression (OR 4.0, 95% CI 3.2-5.0), uncomplicated diabetes (OR 1.5, 95% CI 1.4-1.7), peripheral vascular disease (OR 1.8, 95% CI 1.6-2.0), rheumatoid arthritis collagen vascular disease (OR 1.7, 95% CI 1.3-2.3), and anemia (OR 1.2, 95% CI 1.04-1.3). Some comorbidities suggested a protective effect against dementia. They were hypertension (OR 0.8, 95% CI 0.7-0.9), COPD (OR 0.6, 95% CI 0.5-0.6), and solid tumor without metastasis (OR 0.4, 95% CI 0.3-0.4). Vascular dementia has more cardiovascular and cerebrovascular comorbidities than Alzheimer's disease. CONCLUSION Patients with dementia coexisted with more comorbidities than those without dementia. Comorbidities (esp. cardio-cerebral vascular risks) in patients with vascular dementia were more than those in patients with AD. Specifically, vascular and circulatory diseases, epilepsy, diabetes and depression increased the risk of dementia.
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Affiliation(s)
- Xiaoqiang Xiao
- Department of Neuropsychology, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, Sichuan, China
- Sichuan Provincial Center for Mental Health, Chengdu, Sichuan, China
- University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Shunju Xiang
- Department of Anesthesiology, West China Hospital, Chengdu, China
- West China School of Nursing, Sichuan University, Chengdu, China
| | - Qingya Xu
- Department of Neuropsychology, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, Sichuan, China
- Sichuan Provincial Center for Mental Health, Chengdu, Sichuan, China
- University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Jieying Li
- Department of Neuropsychology, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, Sichuan, China
- Sichuan Provincial Center for Mental Health, Chengdu, Sichuan, China
- University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Jun Xiao
- Department of Neuropsychology, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, Sichuan, China.
- Sichuan Provincial Center for Mental Health, Chengdu, Sichuan, China.
- University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
| | - Yang Si
- Department of Neurology, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, 32# W. Sec 2, 1St Ring Rd., Chengdu, 610072, Sichuan Province, China.
- University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
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Yoon K, Kim JT, Kwack WG, Kim D, Lee KT, Yang S, Lee S, Choi YJ, Chung EK. Potentially Inappropriate Medication Use in Patients with Dementia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11426. [PMID: 36141699 PMCID: PMC9517486 DOI: 10.3390/ijerph191811426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
The objective of this study was to characterize the epidemiology of using potentially inappropriate medications associated with dementia exacerbation (DPIMs) in elderly outpatients with dementia. Electronic medical records were retrospectively reviewed for geriatric patients with dementia who were prescribed at least one medication in 2016 at a tertiary, university-affiliated hospital. The 2015 Beers criteria were used to define DPIMs. Logistic regression was performed to identify factors associated with prescribing DPIMs in patients with dementia. Among 2100 patients included in our study, 987 (47.0%) patients were prescribed at least one DPIM. Benzodiazepines were the most frequently prescribed DPIM followed by anticholinergics, histamine H2-receptor blockers, and zolpidem. The risk of prescribing DPIMs was significantly increased in female patients (odds ratio (OR) 1.355) with polypharmacy (OR 5.146) and multiple comorbidities (OR 1.129) (p < 0.05 for all). Coexistence of Parkinson's disease (OR 1.799), mood disorder (OR 1.373), or schizophrenia (OR 4.116) in patients with dementia further increased the likelihood of receiving DPIMs. In conclusion, DPIMs were commonly used in elderly patients with dementia in Korea with benzodiazepines most frequently prescribed followed by anticholinergics. Female patients using polypharmacy with multiple comorbidities should be closely monitored to minimize unnecessary DPIM use and, ultimately, DPIM-related harms.
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Affiliation(s)
- Kyungwon Yoon
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Pharmacy, Kyung Hee University Hospital, Seoul 02447, Korea
| | - Jung-Tae Kim
- Department of Pharmacy, Kyung Hee University Hospital at Gangdong, Seoul 05278, Korea
| | - Won-Gun Kwack
- Division of Pulmonary, Allergy and Critical Care Medicine, Kyung Hee University Hospital, Seoul 02447, Korea
| | - Donghyun Kim
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
| | - Kyung-Tae Lee
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Korea
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
| | - Seungwon Yang
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Regulatory Science, College of Pharmacy, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Sangmin Lee
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Regulatory Science, College of Pharmacy, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Yeo-Jin Choi
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Regulatory Science, College of Pharmacy, Graduate School, Kyung Hee University, Seoul 02447, Korea
| | - Eun-Kyoung Chung
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul 02447, Korea
- Department of Pharmacy, Kyung Hee University Hospital at Gangdong, Seoul 05278, Korea
- Department of Regulatory Science, College of Pharmacy, Graduate School, Kyung Hee University, Seoul 02447, Korea
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Chen S, Chen X, Zhang H. Polypharmacy Among People Living with Dementia — Israel and 24 Countries in European Union, 2015–2019. China CDC Wkly 2022; 4:1007-1012. [PMID: 36483007 PMCID: PMC9709303 DOI: 10.46234/ccdcw2022.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/24/2022] [Indexed: 11/13/2022] Open
Abstract
What is already known about this topic? With a growing number of people living with dementia (PLWD), the practice of taking multiple medications to manage symptoms or comorbidities, i.e., polypharmacy, among PLWD has become a global health challenge. What is added by this report? In 2015-2019, polypharmacy for PLWD varied substantially among 25 studied countries, with approximately 1 in 5 Estonian PLWD and 4 in 5 Cypriot PLWD having polypharmacy. In addition, Switzerland, Poland, Austria, and the Czech Republic have experienced a significantly increasing trend in polypharmacy for PLWD. What are the implications for public health practice? Countries should pay special attention to polypharmacy and make efforts to control polypharmacy among PLWD, especially in countries where the trend of polypharmacy among PLWD has been increasing.
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Affiliation(s)
- Shanquan Chen
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
- Shanquan Chen,
| | - Xi Chen
- School of Public Health, Yale University, New Haven, Connecticut, United States
| | - Huanyu Zhang
- Shenzhen Research Institute, the Chinese University of Hong Kong, Shenzhen, China
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