PTH and hepatitis C virus infection: It was also negatively correlated with body mass index (r = −0.07, P = 0.039), hepatitis B virus infection, (r = −0.068, P = 0.046), hepatitis C virus infection (r = −0.176, P < 0.001), duration of HD (r = −0.151, P < 0.001), use of hemodiafiltration (r = −0.118, P = 0.001), corrected calcium (r = −0.129, P < 0.001), and log intact parathyroid hormone level (r = −0.161, P < 0.001).