Health transition and immigration: a new challenge for Public Health

Background: Immigration has been one of the most relevant phenomena characterizing Italy's social history of the past 30 years. Currently, there are almost 5 million non-Italian citizens in Italy, representing about 8.2% of the country's population. At the beginning of the 80s, a small health clinic, set-up by a no-profit Catholic organization called Caritas, was thus opened in Rome - managed by medical doctors and volunteer workers aimed at providing the new migrants (often without any social rights) the sanitary support that was unavailable or difficult to find. In time, this health clinic progressively became an observatory of migrants' general health conditions, with a particular focus on the part of this population found in marginal social and legal conditions (without a residence permit). Methods: Data recorded in Roman Caritas Health Clinic database, belonging to patient admitted to the medical centre for the first time in 1986-1987, 2003-2004 and 2013-2014, were selected and compared. Only patients from Africa, Asia, Central and Eastern Europe and Central and Southern America were included. In addition to vital statistics, both diagnosis and prescriptions are filed according to the ICD-9. CM, 1997 in the database. Only codes 001 to 999 have been taken into consideration. The resulting sample is composed of 10741 patients. Of these, 3602 relate to 1986-1987, 4341 to 2003-2004 and 2798 to 2013-2014. The total diagnostical data processed was of 12662 (2777 in 1986-1987, 5704 in 2003-2004, 4181 in 2013-2014). Results: Over the last 30 years the most significant variable for the public health scenario is the progressively ageing population, a variable that does not occur homogeneously. Starting from 2003-2004 an upward trend for non-communicable diseases was observed, that, as suggested by this study, have patterns and determinants varying according to ethnicity. Conclusion: The progressive modification of the socio-demographic profile of the migrant population determined the health transition already seen in the local population. It has also presented itself among foreigners due to the increase in their average age, as well as their provenance from countries with high risk of certain metabolic pathologies, and the acquisition of inadequate lifestyles and eating habits. This epidemiologic shift has had necessary implications on the organization of services and on the activation of eventual specific courses of action.