Currently, practitioners are confronted with the biological problems of migrants and have at their disposal for comparison only reference values established on autochtonal populations. Can these figures be used? From the population living in North-East France, we have established five groups of individuals originating from definite geographical areas: Italy, Iberian peninsula, Northern Europe and Central Europe, North Africa, Near and Middle East, in addition to the French. By means of a multiple regression analysis, we looked for and effect due to the geographical origin of the patients in order to describe specific characteristics of cardiovascular and morphometric examinations and read them accordingly. This study demonstrates the existence of several population groups: patients from the Near and Middle East and North Africa; immigrants from Southern Europe and Northern and Central Europe natives.