Variables and codification 1_ID: Identification number; consecutive number. 2_Age_at_onset_DM: Age at onset of Diabetes mellitus (years). 3_DKA: Ketoacidosis; 0 absent, 1 present. 4_Metformin_use; 0 negative, 1 positive. 5_Insulin_use; 0 negative, 1 positive. 6_Tanner; 1,2,3,4,5. 7_Hypertension; 0 absent, 1 present. 8_Acanthosis; 0-16. 9_BMI: Body Mass Index (kilograms/meters^2). 10_BMI_percentile: Body Mass Index percentile 11_Type_of_DM: Type of Diabetes mellitus; 1 Type 1 autoimmune DM, 2 Type 2 DM, 3 Type 1 idiopathic DM, 4 Type 1.5 DM. 12_Triglycerides (mmol/L). 13_Cholesterol (mmol/L). 14_HDL-C: High-density lipoprotein cholesterol (mmol/L). 15_LDL-C: Low-density lipoprotein cholesterol (mmol/L). 16_HbA1C: Glycated hemoglobin (%). 17_FCP: Fasting C-peptide (nmol/L). 18_hs-CRP: High-sensitivity C-reactive protein (mg/dL).