Factors associated with glomerular filtration rate estimating equation accuracy^a in HIV-positive and HIV-negative participants.

eGFRcr and eGFRcys are glomerular filtration rates estimated by CKD-EPI equations using plasma creatinine and cystatin C, respectively; mGFR, measured glomerular filtration rate by iohexol clearance. aAccuracy shown as percent of estimated GFR values within 30% of measured GFR values (95% confidence interval). bP values in bold font indicate difference is statistically significant accounting for multiple comparisons (see text). cMedians 8.3% and 3.8% in HIV-positive and HIV-negative groups, respectively. dMedians 30.7% and 10.7% in HIV-positive and HIV-negative groups, respectively.