Epidemiologic data concerning frequency and distribution of alcoholism in widespread geographic areas in Italy as well as in other countries, are missing. The aim of this research is the evaluation, of global admissions in general public hospitals of Lombardy, during the year 1976, concerning all patients suffering neurologic complications from alcoholism. The neurologic annual ratio of alcoholic complications (N.A.I.A.C.) calculated for Lombardy is 247/100.000 people. The N.A.I.A.C. is a useful descriptive epidemiologic estimation for many statistical pourposes. The present study is introductive and is going to fulfilment and control in the next future.