 Hypertension will be defined according to 2003 ESHESC guidelines 1. Blood and urine tests will be performed, according to guidelines for Hypertension Management For General Practitioners GP of the Regione Campania see Bollettino Ufficiale Regione Campania, number 11, 18022002, allegato A. This screening includes cell blood counts CBCs, serum creatinine, sodium, potassium, uric acid, total cholesterol, triglycerides, HDL-cholesterol, glucose, urine analysis and EKG. LDL will be calculated starting from the total cholesterol, triglyceride and HDL-cholesterol. 