Measuring eGFR based on cystatin C levels may be a more accurate assessment of kidney function in older adults

A study of more than 82,000 older adults receiving outpatient measurements of estimated glomerular filtration rate (eGFR) found that measuring eGFR based on creatinine and cystatin C levels (eGFRcr-cys) was more strongly associated with adverse outcomes than measuring eGFR with only creatinine levels (eGFRcr). The study is published in Annals of Internal Medicine.

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