[Glycosylated hemoglobin A1c as a diagnostic test for diabetes mellitus in adolescents with overweight and obesity].

Background: In 2009 it was introduced a new diagnostic criteria based on hemoglobin A1c (HbA1c) greater than or equal to 6.5 % in the adult population; some studies suggest that the cutoff may be smaller in pediatric population. The objective was to determine the utility of HbA1c greater than or equal to 6.