Objective To investigate the relationship between 24-hour mean blood pressure,pulse pressure,diurnal blood pressure rhythm and microproteinuria for diagnosis and evaluation of early renal impairment in essential hypertension patients.Methods The 125 essential hypertension patients were studied.The data was collected and studied,including 24-hour mean systolic blood pressure(24hSBP),24-hour mean diastolic blood pressure(24hDBP),24 hours mean pulse pressure(24hPP),urine microalbumin(mAlb),n-acetyl-β-d-glucosa...