Research Article

Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality

Volume: 6 Number: 6 December 27, 2025
TR EN

Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality

Abstract

Aims: Cardiovascular and inflammatory risk markers remain central to mortality in maintenance hemodialysis (HD). Although lipid-based indices such as the Atherogenic Index of Plasma (AIP) have been proposed as prognostic tools, their utility in HD populations remains uncertain. This study compared the prognostic value of AIP with the inflammatory–nutritional biomarker C-reactive protein (CRP)/albumin ratio and other biochemical predictors of mortality. Methods: In this retrospective cohort study, 350 adult HD patients from two centers in Ankara, Turkiye were followed from January 2022 to September 2025. Baseline demographic, biochemical, and dialysis adequacy parameters were extracted from electronic medical records. Derived variables included AIP=log₁₀(triglyceride/HDL) and the CRP/albumin ratio. Mortality predictors were evaluated using logistic and Cox regression analyses and illustrated with Kaplan-Meier curves. Discrimination was assessed by the area under the receiver-operating-characteristic curve (AUC) and Harrell's concordance index (C-index). Results: During a median follow-up of 45 months, 90 deaths (25.7%) occurred, including 33 cardiovascular deaths. Non survivors were older and showed higher inflammatory markers and lower nutritional indices. In multivariable Cox models, older age, higher phosphate, lower albumin, and lower parathormone independently predicted all-cause mortality. The CRP/albumin ratio remained independently associated with all-cause mortality (HR 1.48, 95% CI 1.13–1.93). In contrast, AIP was not associated with all-cause mortality but was independently associated with cardiovascular mortality. Conclusion: In this cohort, inflammatory-nutritional and mineral-bone markers rather than lipid-based indices, determined all-cause mortality whereas AIP showed a statistically significant relationship with cardiovascular mortality. These findings highlight that inflammation and malnutrition remain significant drivers of mortality in HD cohorts, whereas the clinical utility of AIP may be more limited to cardiovascular results and warrants further investigation.

Keywords

Ethical Statement

The ethical approvals for the study were obtained from Etlik City Hospital Ethics Committee (Approval Number:AEŞH-BADEK2-2025-599, date:18.11.2025). Written consent was waived with the approval of ethics committee due to the retrospective design of the study.

References

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Details

Primary Language

English

Subjects

Nefroloji

Journal Section

Research Article

Publication Date

December 27, 2025

Submission Date

November 22, 2025

Acceptance Date

December 22, 2025

Published in Issue

Year 2025 Volume: 6 Number: 6

APA
Akgül, A., Aylı, B. I., Koç, N. S., & Ikhlef, Ç. (2025). Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality. Journal of Medicine and Palliative Care, 6(6), 774-781. https://doi.org/10.47582/jompac.1828563
AMA
1.Akgül A, Aylı BI, Koç NS, Ikhlef Ç. Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality. J Med Palliat Care / JOMPAC / jompac. 2025;6(6):774-781. doi:10.47582/jompac.1828563
Chicago
Akgül, Arzu, Berrak Itır Aylı, Neriman Sıla Koç, and Çiğdem Ikhlef. 2025. “Divergent Prognostic Roles of the CRP Albumin Ratio and the Atherogenic Index of Plasma in Hemodialysis: All-Cause and Cardiovascular Mortality”. Journal of Medicine and Palliative Care 6 (6): 774-81. https://doi.org/10.47582/jompac.1828563.
EndNote
Akgül A, Aylı BI, Koç NS, Ikhlef Ç (December 1, 2025) Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality. Journal of Medicine and Palliative Care 6 6 774–781.
IEEE
[1]A. Akgül, B. I. Aylı, N. S. Koç, and Ç. Ikhlef, “Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality”, J Med Palliat Care / JOMPAC / jompac, vol. 6, no. 6, pp. 774–781, Dec. 2025, doi: 10.47582/jompac.1828563.
ISNAD
Akgül, Arzu - Aylı, Berrak Itır - Koç, Neriman Sıla - Ikhlef, Çiğdem. “Divergent Prognostic Roles of the CRP Albumin Ratio and the Atherogenic Index of Plasma in Hemodialysis: All-Cause and Cardiovascular Mortality”. Journal of Medicine and Palliative Care 6/6 (December 1, 2025): 774-781. https://doi.org/10.47582/jompac.1828563.
JAMA
1.Akgül A, Aylı BI, Koç NS, Ikhlef Ç. Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality. J Med Palliat Care / JOMPAC / jompac. 2025;6:774–781.
MLA
Akgül, Arzu, et al. “Divergent Prognostic Roles of the CRP Albumin Ratio and the Atherogenic Index of Plasma in Hemodialysis: All-Cause and Cardiovascular Mortality”. Journal of Medicine and Palliative Care, vol. 6, no. 6, Dec. 2025, pp. 774-81, doi:10.47582/jompac.1828563.
Vancouver
1.Arzu Akgül, Berrak Itır Aylı, Neriman Sıla Koç, Çiğdem Ikhlef. Divergent prognostic roles of the CRP/albumin ratio and the Atherogenic Index of Plasma in hemodialysis: all-cause and cardiovascular mortality. J Med Palliat Care / JOMPAC / jompac. 2025 Dec. 1;6(6):774-81. doi:10.47582/jompac.1828563

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