Quantifying Individual-Level Inaccuracy in Glomerular Filtration Rate Estimation

Autor: Tariq Shafi, Xiaoqian Zhu, Seth T. Lirette, Andrew D. Rule, Thomas Mosley, Kenneth R. Butler, Michael E. Hall, Pradeep Vaitla, James J. Wynn, Maria Clarissa Tio, Neville R. Dossabhoy, Eliseo Guallar, Javed Butler
Rok vydání: 2022
Předmět:
Zdroj: Annals of Internal Medicine. 175:1073-1082
ISSN: 1539-3704
0003-4819
DOI: 10.7326/m22-0610
Popis: Although the population-level differences between estimated glomerular filtration rate (eGFR) and measured glomerular filtration rate (mGFR) are well recognized, the magnitude and potential clinical implications of individual-level differences are unknown.To quantify the magnitude and consequences of the individual-level differences between mGFRs and eGFRs.Cross-sectional study.Four U.S. community-based epidemiologic cohort studies with mGFR.3223 participants in 4 studies.The GFRs were measured using urinary iothalamate and plasma iohexol clearance; the eGFR was calculated from serum creatinine concentration alone (eGFRThe participants' mean age was 59 years; 32% were Black, 55% were women, and the mean mGFR was 68. The population-level differences between mGFR and eGFRSingle measurement of mGFR and serum markers without short-term replicates.A substantial individual-level discrepancy exists between the mGFR and the eGFR. Laboratories reporting eGFR should consider including the extent of this uncertainty to avoid misinterpretation of eGFR as an mGFR replacement.National Institutes of Health.
Databáze: OpenAIRE