Urinary sodium excretion levels were significantly correlated with BMI, SBP, DBP, waist circumference, duration of diabetes, LVMI and HbA1c after adjusting age, gender, smoking, alcohol consumption and use of renin-angiotensin system (RAS) blocking agents, diuretics, statin and antidiabetic medication (all P<0.05). Here, REN is linked to diabetes mellitus.