簡便な手法で慢性腎疾患の早期発見が可能に(Simple method can enable early detection of chronic kidney disease)

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2026-01-16 カロリンスカ研究所(KI)

スウェーデンのカロリンスカ研究所(KI)の研究チームは、慢性腎臓病(CKD)を早期に検出し、予防につなげる簡便な方法を開発したと発表した。本研究では、血液検査で得られる既存の臨床データを用い、腎機能低下の初期段階を高精度で特定できる指標を提示している。CKDは初期には自覚症状が乏しく、進行してから診断されることが多いが、本手法により、症状が現れる前の段階でリスクを把握できる可能性が示された。研究成果は、大規模な患者データを解析することで実証され、医療現場で既に利用可能な検査項目を活用できる点が大きな利点である。これにより、生活習慣改善や治療介入を早期に行うことが可能となり、将来的な腎不全や透析への進行を防ぐ新たなアプローチとして期待されている。

<関連情報>

人口ベースの推定糸球体濾過率分布と関連する健康成果は、慢性腎臓病の早期発見と一次予防の機会を提供する Population-based estimated Glomerular Filtration Rate distributions and associated health outcomes provide opportunities for early identification of and primary prevention of chronic kidney disease

Yuanhang Yang ∙ Antoine Creon ∙ Andrew S. Levey ∙ … ∙ Alberto Ortiz ∙ Edouard L. Fu ∙ Juan Jesus Carrero
Kidney International  Published:January 15, 2026
DOI:https://doi.org/10.1016/j.kint.2025.11.009

Graphical abstract

簡便な手法で慢性腎疾患の早期発見が可能に(Simple method can enable early detection of chronic kidney disease)

Abstract

Introduction

There are currently no established strategies for early identification and primary prevention of chronic kidney disease (CKD). Automatic reporting of estimated glomerular filtration rate (eGFR) allows opportunistic CKD screening. Here, we hypothesized that comparison with population-based eGFR distributions may further help identify individuals at elevated risk.

Methods

A population-based observational cohort study including adults aged 40 to 100 years with routine serum/plasma creatinine tests (Stockholm CREAtinine Measurements project) between 2006 and 2021 was conducted. The cohort captured 1,179,501 unique individuals (80% of the population in the region) with 6,914,993 repeated annual eGFR measurements. After computing eGFR distributions by age and sex, cause-specific Cox regressions evaluated the associations between eGFR percentiles and risks of kidney failure with replacement therapy (KFRT) and death.

Results

Median eGFR (2009 CKD-EPI) was lower at higher age, from 104–106 ml/min per 1.73 m2 (men–women) at age 40 to 45–50 ml/min per 1.73 m2 at age 100. Exclusion of individuals with selected comorbid conditions or adjustment for the non-tested population had minimal impact on eGFR distributions. Compared to the central percentiles (47.5–52.5th), eGFR percentiles below the 25th were significantly associated with increased risk of KFRT, and both low and high eGFR percentiles were associated with increased mortality. Associations were consistent across age groups. Among 421,547 individuals with eGFR 60 ml/min per 1.73 m2 or more who were below the 25th percentile, only 24% underwent albuminuria/proteinuria testing in the adjacent year and could have benefited from additional diagnostic work-up.

Conclusions

Our study shows that eGFR values below the 25th percentile of the population distribution are associated with increased risks of kidney failure and death. Population-based eGFR charts may complement current automatic reporting systems and provide opportunities for early identification and primary prevention of CKD.

医療・健康
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