Evidence map›Paper›PMID 40343716›Full record

ArticleJAMA health forum2025

End-of-Life Care and Health Care Spending for Medicare Beneficiaries With Dementia in Accountable Care Organizations.

Jessica J Zhang, David B Reuben, Anne M Walling, David S Zingmond, Cheryl L Damberg, Neil S Wenger, Haiyong Xu, Ryo Ikesu, Gillian S Kaneshiro, Alexandra Klomhaus and 2 more

Abstract read
In one paragraph

Article in JAMA health forum, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

12 authors.

Jessica J ZhangDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
David B ReubenMulticampus Program in Geriatric Medicine and Gerontology, University of California, Los Angeles.
Anne M WallingDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
David S ZingmondDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
Cheryl L DambergRAND Corporation, Santa Monica, California.
Neil S WengerDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
Haiyong XuDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
Ryo IkesuDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
Gillian S KaneshiroDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
Alexandra KlomhausDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.
Hiroshi GotandaDivision of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
Yusuke TsugawaDivision of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.

Funding

NRSA Training CoreTL1TR001883 · NCATS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ALEX BUI, Nina Thawata Harawa · 2016 to 2026
$8.6M
NCATS NIH HHS TL1 TR001883
6 · The paper itself

Abstract

Importance: Individuals with dementia may receive high-intensity care at the end of life (EOL) that does not align with their preferences and is costly. Medicare Accountable Care Organizations (ACOs) are an alternative payment model that aims to incentivize high-quality care and lower spending. Objective: To compare EOL care processes, outcomes, and health care spending between Medicare beneficiaries with dementia in a Medicare Shared Savings Program (MSSP) ACO and non-ACO. Design, Setting, and Participants: This quasi-experimental study of EOL care used a nationally representative 20% random sample of Medicare fee-for-service beneficiaries with dementia (age ≥66 years) who died from 2017 to 2020. Difference-in-differences and event study design approaches were used to compare outcomes between beneficiaries attributed to MSSP ACO vs those who were not. Data were analyzed from June 2023 to December 2024. Exposure: MSSP ACO entry from 2017 to 2019 vs non-ACO. Main Outcomes and Measures: Differential changes in 5 areas: (1) billing for advance care planning; (2) palliative care counseling in last 6 months of life; (3) hospice in last 6 months of life; (4) high-intensity care in last 30 days of life (ie, emergency department visit, hospitalization, intensive care unit admission, in-hospital death, cardiopulmonary resuscitation or mechanical ventilation, feeding tube placement); and (5) health care spending in last 6 months of life. Results: Of 162 034 eligible Medicare beneficiaries (mean [SD] age, 85.0 [7.9] years; 94 304 female [58.2%]), 51 191 (31.6%) were attributed to MSSP ACO. Adjusted trends in outcomes were similar between ACO and non-ACO groups before ACO entry. The difference-in-differences analyses found no evidence that EOL care processes or outcomes (eg, hospice in last 6 months of life, -0.4 percentage points [pp]; 95% CI, -1.4 pp to 0.5 pp; P > .99) or spending (eg, total health care spending in last 6 months of life, -$632; 95% CI, -$1377 to $113; P = .96) differed between beneficiaries treated in ACOs vs non-ACOs. The event study design also showed no evidence of differential changes in outcomes between the 2 groups. Sensitivity analyses using inverse probability weighting yielded similar results. Conclusions and Relevance: Using nationally representative data on beneficiaries with dementia at EOL, this quasi-experimental study found no evidence that EOL care processes, outcomes, or spending changed with ACO entry for Medicare fee-for-service beneficiaries vs non-ACO beneficiaries. Alternative payment models to ACOs may be needed to coordinate high-quality care with lower spending for beneficiaries with dementia at the EOL.

Indexed as

Accountable Care OrganizationsDementiaHealth ExpendituresMedicareTerminal CareAgedAged, 80 and overFee-for-Service PlansFemaleHumansMaleUnited States

Identifiers

PMID40343716
PMCPMC12065038

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.