Evidence map›Paper›PMID 37620717›Full record

ArticleJournal of general internal medicine2023

Changes in Polypharmacy and Potentially Inappropriate Medications in Homebound Older Adults in Japan, 2015-2019: a Nationwide Study.

Shota Hamada, Masao Iwagami, Nobuo Sakata, Yukari Hattori, Kiwami Kidana, Tatsuro Ishizaki, Nanako Tamiya, Masahiro Akishita, Takashi Yamanaka

Open access · bronzeAbstract read
In one paragraph

Article in Journal of general internal medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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  5. Ikigai in aging hearts: Japan's approach to cardiovascular care.Hypertension research : official journal of the Japanese Society of Hypertension · 2025
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Shota HamadaResearch Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan. shota.hamada@ihep.jp.ORCID 0000-0003-4939-1834
Masao IwagamiDepartment of Health Services Research, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Nobuo SakataDepartment of Health Services Research, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Yukari HattoriDepartment of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Kiwami KidanaDepartment of Home Care Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Tatsuro IshizakiHuman Care Research Team, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
Nanako TamiyaDepartment of Health Services Research, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Masahiro AkishitaDepartment of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Takashi YamanakaDepartment of Home Care Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
The University of Tokyo · JPUniversity of Tsukuba · JPTokyo Metropolitan Institute of Gerontology · JP

Funding

Japan Society for the Promotion of Science 20K18868Japan Society for the Promotion of Science 22K10406
6 · The paper itself

Abstract

backgroundWith rising worldwide population aging, the number of homebound individuals with multimorbidity is increasing. Improvement in the quality of home medical care (HMC), including medications, contributes to meeting older adults' preference for "aging in place" and securing healthcare resources.

objectiveTo evaluate the changes in drug prescriptions, particularly potentially inappropriate medications (PIMs), among older adults receiving HMC in recent years, during which measures addressing inappropriate polypharmacy were implemented, including the introduction of clinical practice guidelines and medical fees for deprescribing.

designA cross-sectional study.

participantsUsing data from the national claims database in Japan, this study included older adults aged ≥ 75 years who received HMC in October 2015 (N = 499,850) and October 2019 (N = 657,051). MAIN MEASURES: Number of drugs, prevalence of polypharmacy (≥ 5 regular drugs), major drug categories/classes, and PIMs according to Japanese guidelines were analyzed. Random effects logistic regression models were used to evaluate the differences in medications between 2015 and 2019, considering the correlation within individuals who contributed to the analysis in both years. KEY

resultsThe number of drugs remained unchanged from 2015 to 2019 (median: 6; interquartile range: 4, 9). The prevalence of polypharmacy also remained unchanged at 70.0% in both years (P = 0.93). However, the prescription of some drugs (e.g., direct oral anticoagulants, new types of hypnotics, acetaminophen, proton pump inhibitors, and β-blockers) increased, whereas others (e.g., warfarin, vasodilators, H2 blockers, acetylcholinesterase inhibitors, and benzodiazepines) decreased. Among the frequently prescribed PIMs, benzodiazepines/Z-drugs (25.6% in 2015 to 21.1% in 2019; adjusted odds ratio: 0.52) and H2 blockers (11.2 to 7.3%; 0.45) decreased, whereas diuretics (23.8 to 23.6%; 0.90) and antipsychotics (9.7 to 10.5%; 1.11) remained unchanged.

conclusionsWe observed some favorable changes but identified some continuous and new challenges. This study suggests that continued attention to medication optimization is required to achieve safe and effective HMC.

Indexed as

Inappropriate PrescribingPotentially Inappropriate Medication ListAcetylcholinesteraseAgedBenzodiazepinesCross-Sectional StudiesDrug PrescriptionsHumansJapanPolypharmacyAcetylcholinesteraseBenzodiazepinesdeprescribinghome carehome health carepolypharmacypotentially inappropriate medications

Identifiers

PMID37620717
PMCPMC10713963
OpenAlexW4386121887

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.