Evidence map›Paper›PMID 40960537›Full record

ArticleHeart and vessels2026

The obesity paradox in super-elderly patients with heart failure: a retrospective cohort study.

Takahiro Tachibana, Yoshiaki Kubota, Takuya Nishino, Katsuhito Kato, Yoshiki Iwade, Daisuke Hayashi, Yukihiro Watanabe, Hideki Miyachi, Shuhei Tara, Kuniya Asai

Abstract read
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In one paragraph

Article in Heart and vessels, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Takahiro TachibanaDepartment of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.
Yoshiaki KubotaDepartment of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan. ykubota@nms.ac.jp.ORCID http://orcid.org/0000-0001-7320-7641
Takuya NishinoDepartment of Health Care Administration, Nippon Medical School, Tokyo, Japan.
Katsuhito KatoDepartment of Hygiene and Public Health, Nippon Medical School, Tokyo, Japan.
Yoshiki IwadeDepartment of Pharmaceutical Service, Nippon Medical School Hospital, Tokyo, Japan.
Daisuke HayashiDepartment of Pharmaceutical Service, Nippon Medical School Hospital, Tokyo, Japan.
Yukihiro WatanabeDepartment of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.
Hideki MiyachiDepartment of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.
Shuhei TaraDepartment of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.
Kuniya AsaiDepartment of Cardiovascular Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obesity is an independent risk factor for heart failure (HF) onset; however, weight loss is an independent poor prognostic factor in patients with HF. According to the obesity paradox, higher body weight is associated with better prognosis in these patients. This retrospective cohort study investigated the obesity paradox in super-elderly, understudied patients (aged ≥ 85 years) with HF and examined its impact on all-cause mortality. We included patients hospitalized for HF between April 2015 and March 2023. Participants were divided into four age groups: Groups A (< 65 years), B (65-74 years), C (75-84 years, elderly), and D (≥ 85 years, super-elderly). The primary endpoint was the 1-year all-cause mortality rate after discharge. The secondary endpoints included cardiac and non-cardiac death rates and all-cause mortality rates stratified by left ventricular ejection fraction (LVEF). Overall, 3,811 individuals (mean age: 74.3 years, 60.4% men) were included. A trend toward higher all-cause mortality rates associated with underweight (body mass index [BMI] < 18.5 kg/m

Indexed as

Heart FailureObesityAgedAged, 80 and overAge FactorsBody Mass IndexCause of DeathFemaleFollow-Up StudiesHumansMaleMiddle AgedObesity ParadoxPrognosisRetrospective StudiesRisk AssessmentAll-cause mortalityHeart failureObesity paradoxSuper-elderly population

Identifiers

PMID40960537

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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.