INS and diabetes mellitus: Also low handgrip strength was not significantly correlated with duration of diabetes (r = 0.130, p = 0.104), insulin treatment (φ = 0.023), HbA1c (r = −0.029, p = 0.724), serum creatinine (r = 0.011, p = 0.890), triglyceride level (r = 0.059, p = 0.495), LDL cholesterol (r = 0.003, p = 0.977) and e-GFR (r = 0.016, p = 0.846).