CRP and type 2 diabetes mellitus: There was a significant positive correlation between RDW and duration of T2DM (r = 0.19, p = 0.023), diastolic blood pressure (r = 0.18, p = 0.03), CRP (r = 0.24, p = 0.004), proteinuria (r = 0.30, p = 0.001) and albuminuria (r = 0.29, p = 0.002).