by American College of Physicians Credit: Pixabay/CC0 Public DomainA 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...