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ArticleFrontiers in cardiovascular medicine2026

Geriatric nutritional risk Index predicts adverse outcomes across cardiovascular-kidney-metabolic syndrome: discovery in NHANES and external validation in CKM stage 4 patients undergoing PCI.

Hongyan Zhu, Jing Yang, Yuqi Fang, Yizhu Yan

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Article in Frontiers in cardiovascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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4 authors.

Hongyan ZhuDepartment of Cardiology, Beijing Luhe Hospital Affiliated to Capital Medical University, Beijing, China.
Jing YangDepartment of Cardiology, Beijing Luhe Hospital Affiliated to Capital Medical University, Beijing, China.
Yuqi FangDepartment of Cardiology, Beijing Luhe Hospital Affiliated to Capital Medical University, Beijing, China.
Yizhu YanDepartment of Cardiology, Beijing Luhe Hospital Affiliated to Capital Medical University, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Cardiovascular-kidney-metabolic (CKM) syndrome imposes a high burden of adverse events, yet prognostic biomarkers remain scarce. We evaluated the prognostic value of the Geriatric Nutritional Risk Index (GNRI) across CKM stages 1-4 and in high-risk patients undergoing percutaneous coronary intervention (PCI). Methods: This discovery-validation study utilized 16,074 adults with CKM syndrome from NHANES (1999-2018) and an external validation cohort of 2,401 CKM Stage 4 patients undergoing PCI. Primary outcomes were all-cause mortality (discovery) and major adverse cardiovascular events (MACE; validation). Results: In the discovery cohort, compared with the highest GNRI quartile (Q4), Q1 was associated with significantly higher hazards of all-cause (HR 1.58; 95% CI 1.32-1.89) and cardiovascular mortality (HR 2.13; 95% CI 1.55-2.93); each 1-unit increase in GNRI was associated with a lower hazard of all-cause mortality (HR 0.95; 95% CI 0.94-0.97). In the validation cohort, Q1 vs. Q4 conferred a markedly increased risk of MACE (HR 2.52; 95% CI 2.03-3.13), with each 1-unit increase in GNRI associated with a lower risk of MACE (HR 0.95; 95% CI 0.94-0.96). Restricted cubic splines revealed a non-linear inverse relationship, with risk rising sharply below GNRI ≈ 100. Adding GNRI to a base clinical model significantly improved Harrell's C-index for MACE (Δ +0.048, Conclusions: Lower GNRI is independently associated with adverse outcomes across the CKM spectrum. In an external CKM Stage 4 PCI cohort, GNRI provided clinically meaningful incremental risk discrimination, supporting its use as an inexpensive marker to help identify higher-risk patients. Whether GNRI-guided management improves outcomes remains to be determined.

Indexed as

cardiovascular–kidney–metabolic syndromeexternal validationgeriatric nutritional risk indexmajor adverse cardiovascular eventsnutritional statuspercutaneous coronary interventionrisk prediction

Identifiers

PMID42483466
PMCPMC13385701

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