Increasing burden, younger age at onset and worst metabolic control in migrant than in Italian children with type 1 diabetes: an emerging problem in pediatric clinics

To assess burden and clinical features of type 1 diabetes in migrant with respect to Italian children. Prevalent children with type 1 diabetes were identified through a multicenter study, including 46 pediatric outpatients diabetic clinics. A nested case–control study was also performed, comparing features at diabetes onset and after 1 year of insulin treatment in 84 migrants and 75 Italian children with onset in 2011, matched for age and sex. Out of 7,812 children cared for by pediatric diabetologists, 761 (10 %) were migrant and 548 of them were born in Italy. Age at diagnosis was lower in migrants born in Italy (5.1 years, interquartile range (IQR) 2.2–7.7) than in those born in their original countries (7.8 years, IQR 5.3–10.3) and in Italians (9.8 years, IQR 5.9–13.0, p