Application of creatinine-based eGFR equations in Chinese septuagenarians and octogenarians.

Aug 07, 2023

Contributors: Guan Changjie,Zhu Xusheng,Dai Hui,Li Jianwen,Liang Ming

The utilization of creatinine-based estimated glomerular filtration rate (eGFR) equations in the adult population is acknowledged. Nevertheless, the appropriateness of creatinine-based eGFR in septuagenarians and octogenarians is debatable. This study evaluates the creatinine-based equations in Chinese septuagenarians and octogenarians cohorts.
This study employed a retrospective design, utilizing a review of the hospital medical records system to identify 347 hospitalized participants within the Division of Geriatrics or the Division of Nephrology. These participants underwent renal dynamic imaging with 99 m Tc-DTPA and serum creatinine testing. Comparison of the equations was performed, including the full age-spectrum equation (FAS-Cr equation), European Kidney Function Consortium equation (EKFC equation), Chronic Kidney Disease Epidemiology Collaboration equation for Asian (Asian CKD-EPI equation), Xiangya equation, and Lund-Malmö revised equation (LMR equation).
Most equations tended to underestimate GFR. The FAS-Cr equation had the smallest interquartile range (IQR), while the Asian CKD-EPI equation (mGFR ≥ 30) and Xiangya equation (mGFR < 30) had the biggest IQRs. The FAS-Cr equation had the highest overall P30 of 63.98%, while the Asian CKD-EPI equation had the highest P30 of 75.64% in mGFR ≥ 60. The Xiangya equation, on the other hand, reported the lowest P30 of 36.36% in mGFR < 30. We discovered similar patterns in root-mean-square error (RMSE) as P30. GFR category misclassification rates in the entire cohort ranged from 46.11 to 49.86% for all equations. The FAS-Cr equation exhibited an advantage in octogenarians over other equations in the GFR category misclassification with mGFR lower than 60 ml/min/1.73 m.
None of the creatinine-based equations in this study could perform well regarding precision, accuracy, and CKD stages’ classification for the Chinese elderly. Nevertheless, the FAS-Cr equation should be suitable for octogenarians with mGFR lower than 60 ml/min/1.73 m.

© 2023. The Author(s), under exclusive licence to Springer Nature B.V.

Author

admin

View all posts

ABOUT THE CONTRIBUTORS

Guan Changjie,Zhu Xusheng,Dai Hui,Li Jianwen,Liang Ming
Guan Changjie

Department of Nephrology, Guangzhou First People’s Hospital, South China University of Technology, No. 1 Panfu Road, Yuexiu District, Guangzhou, 510180, China.

Zhu Xusheng

Department of Nuclear Medicine, Guangzhou First People’s Hospital, South China University of Technology, Guangzhou, 510180, China.

Dai Hui

Department of Clinical Laboratory Medicine, Guangzhou First People’s Hospital, South China University of Technology, Guangzhou, 510180, China.

Li Jianwen

Department of Nephrology, Guangzhou First People’s Hospital, South China University of Technology, No. 1 Panfu Road, Yuexiu District, Guangzhou, 510180, China.

Liang Ming

Department of Nephrology, Guangzhou First People’s Hospital, South China University of Technology, No. 1 Panfu Road, Yuexiu District, Guangzhou, 510180, China. Liangming1972@126.com.