CRP and diabetes mellitus: Multiple other predictors of poor sleep quality have been found in other studies but not in our study including young age [7,12,16,19], older age [11,13,34], female sex [11,15,31,35], white race [19], employment [7], diabetes mellitus [6], duration of hemodialysis [12,30], reduced frequency of hemodialysis [11], body pain [6,16], pruritis [16], CRP [7], serum phosphorous [7,8,15,32], albumin, body mass index [7] and quality of life [9,12,19,20,29].