The aim of our study was to assess the factors that influence the level of glycated hemoglobin in children and adolescents with type 1 diabetes (T1D). This study included 122 children and adolescents suffering from T1D who were in the evidence of the First Pediatric Clinic of the Clinical Emergency County Hospital of Craiova between 2003 and 2017. If HbA1c was less than 7.50%, we included patients in the glycemic equilibrium group, and if HbA1c was greater than 7.50%, we considered patients as suffering from unbalanced diabetes. By correlating the glycosylated hemoglobin level with the different parameters used in the study, we observed large/strong positive correlations between HbA1c and duration of diabetes mellitus and also between HbA1c and patient age, HbA1c negative correlation between physical activity, medium/moderate positive correlations between HbA1c and body mass index, weight of the patients and daily insulin dose and the height of the patients included in the study did not show significant correlations. Child and adolescent diabetes management has major adult differences in both insulin and drug treatment, in general, but especially in the need of understanding, counseling and integration specific to these ages.