[The newborn infant in the Aosta Valley: preliminary statistical analysis of various ethnic and geographic factors].

We have examined 976 new-born babies in Aosta Valley retrospectively, in order to determine which risk factors were significantly linked with the high incidence of: hospitalization and infants with below average neonatal and placental weight. The new-borns of native mothers have been compared with those of immigrant mothers, and also the new-borns of parents living in mountains have been compared with those of parents living in town. Results have shown new-born babies of native mother are at a disadvantage, especially regarding: the neonatal and placental average weight and the incidence of small for gestational age infants (SGA). No statistically significant difference has been found from the geographical point of view. Our results have stimulated a desire for deeper knowledge concerning the ethnical distribution of our neonatal sample and the maternal anamnesis before delivery: these are the two problems we are presently concerning ourselves with.