INS and diabetes mellitus: After adjusting for other risk factors including DM (AOR = 1.24, 95%CI: 0.82–1.87) and high insulin level (AOR = 2.04, 95%CI: 1.19–3.49) in the full model of multiple regression analyses, however, we still found that a high dioxin level was an independent predictor of CKD (AOR = 1.74, 95%CI: 1.02–2.97).