DST and chronic kidney disease: Furthermore, when early CKD was defined on the basis of abnormalities in eGFR (depend on CKD-MDRD equation), we found that urinary BPA levels increased the risk of early CKD by 2.50 times (AOR = 2.50, 95% CI =1.19–5.24, 2nd tertile) and 2.55 times (AOR = 2.55, 95% CI =1.09–5.95, 3rd tertile), but no significant differences were observed depend on CKD-EPI equation (Supplementary Table S7).