Evidence map›Paper›PMID 41288858›Full record

ArticleClinical and experimental nephrology2026

An evaluation of stage-based survival and renal prognosis in the general super-older population of Japan.

Arisa Kobayashi, Keita Hirano, Tadahisa Okuda, Tatsuyoshi Ikenoue, Yukari Yamada, Takashi Yokoo, Shingo Fukuma

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

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Arisa KobayashiHuman Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Keita HiranoHuman Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Tadahisa OkudaHuman Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Tatsuyoshi IkenoueHuman Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Yukari YamadaHuman Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Takashi YokooDivision of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.
Shingo FukumaHuman Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan. fukuma.shingo.3m@kyoto-u.ac.jp.ORCID http://orcid.org/0000-0002-8379-8761

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe risk of mortality and cardiovascular disease (CVD) may be higher among some super-older adults with chronic kidney disease (CKD). We assessed outcomes across CKD stages in an aging Japanese population.

methodsThis retrospective cohort study using nationwide health examination and insurance claims database enrolled individuals aged 75-90 years whose renal function was measured > 2 times during the observation period. CKD stages were classified using eGFR and urinary protein levels. We used a Cox proportional hazards model to evaluate all-cause mortality and CVD events by CKD stage and a logistic regression model to assess dialysis initiation by renal function and proteinuria among patients with advanced CKD.

resultsOf 365,664 individuals aged 75-90 years, > 30% met the CKD diagnosis criteria, mostly the CKD G3aA1 category. During follow-up, 18,238 deaths and 48,937 CVD events occurred. Mortality and CVD incidence increased with advancing CKD stages. Mortality risk was elevated only among G3a patients with urinary protein (A2/3: HR 1.64 [95% CI 1.53-1.76]), but not without (A1: HR 1.01 [0.97-1.05]). CVD risk increased significantly across all A2/3 stages, but not in A1. Dialysis was initiated in 9.5% of patients with CKD G4/5, with an earlier risk observed in the A2/3 group.

conclusionIn older adults, CKD prognosis varies according to stage and proteinuria. Most individuals with early-stage, proteinuria-negative CKD do not experience adverse outcomes, whereas trace or greater proteinuria indicates higher risk. Outcome-based CKD management in a super-older population is essential to avoid overtreatment and ensure appropriate care.

Indexed as

Cardiovascular DiseasesKidneyRenal Insufficiency, ChronicAgedAged, 80 and overAge FactorsDatabases, FactualFemaleGlomerular Filtration RateHumansIncidenceJapanMalePrognosisProportional Hazards ModelsProteinuriaChronic kidney diseaseMortalityOutcome-based CKD managementProteinuriaSuper-older population

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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.