TY - JOUR TI - Prevalence of underweight, overweight, and obesity in children and adolescents with type 1 diabetes: Data from the international SWEET registry AU - Maffeis, C. AU - Birkebaek, N.H. AU - Konstantinova, M. AU - Schwandt, A. AU - Vazeou, A. AU - Casteels, K. AU - Jali, S. AU - Limbert, C. AU - Pundziute-Lycka, A. AU - Toth-Heyn, P. AU - de Beaufort, C. AU - Sumnik, Z. AU - Cherubini, V. AU - Svensson, J. AU - Pacaud, D. AU - Kanaka-Gantenbein, C. AU - Shalitin, S. AU - Bratina, N. AU - Hanas, R. AU - Alonso, G.T. AU - Poran, L. AU - Pereira, A.L. AU - Marigliano, M. AU - The SWEET Study Group JO - Pediatric Diabetes PY - 2018 VL - 19 TODO - 7 SP - 1211-1220 PB - Wiley-Blackwell Publishing Ltd SN - 1399-543X, 1399-5448 TODO - 10.1111/pedi.12730 TODO - hemoglobin A1c; insulin, adolescent; adult; age; age distribution; Article; body mass; child; clinical assessment; clinical feature; cross-sectional study; disease association; disease course; disease duration; disease registry; female; human; insulin dependent diabetes mellitus; insulin treatment; lipid storage; major clinical study; male; obesity; pediatrics; prevalence; priority journal; prophylaxis; sex difference; therapy effect; treatment outcome; underweight; clinical trial; complication; insulin dependent diabetes mellitus; multicenter study; obesity; preschool child; prevalence; register; underweight, Adolescent; Child; Child, Preschool; Cross-Sectional Studies; Diabetes Mellitus, Type 1; Female; Humans; Male; Obesity; Prevalence; Registries; Thinness TODO - Objective: To assess the prevalence of underweight (UW), overweight (OW), and obesity in children and adolescents with type 1 diabetes (T1D). Methods: An international cross-sectional study including 23 026 T1D children (2-18 years, duration of diabetes ≥1 year) participating in the SWEET prospective, multicenter diabetes registry. Body mass index SD score (BMI-SDS) was calculated using the World Health Organization BMI charts. Children were categorized as UW (BMI-SDS < −2SD), OW (+1SD < BMI-SDS ≤ +2SD), and obese (OB) (BMI-SDS > +2SD). Hierarchic regression models were applied with adjustment for sex, age, and duration of diabetes. Results: The prevalence of UW, OW, and obesity was: 1.4%, 22.3%, and 7.3% in males and 0.6%, 27.2%, and 6.8% in females. Adjusted BMI-SDS was significantly higher in females than in males (mean ± SEM: 0.54 ± 0.05 vs 0.40 ± 0.05, P < 0.0001). In males, BMI-SDS significantly decreased by age (P < 0.0001) in the first three age categories 0.61 ± 0.06 (2 to <10 years), 0.47 ± 0.06 (10 to <13 years), 0.34 ± 0.05 (13 to <16 years). In females, BMI-SDS showed a U-shaped distribution by age (P < 0.0001): 0.54 ± 0.04 (2 to <10 years), 0.39 ± 0.04 (10 to <13 years), 0.55 ± 0.04 (13 to <16 years). BMI-SDS increased by diabetes duration (<2 years: 0.38 ± 0.05, 2 to <5 years: 0.44 ± 0.05, and ≥5 years: 0.50 ± 0.05, P < 0.0001). Treatment modality did not affect BMI-SDS. Adjusted HbA1c was significantly higher in females than in males (8.20% ± 0.10% vs 8.06% ± 0.10%, P < 0.0001). In both genders, the association between HbA1c and BMI-SDS was U-shaped with the highest HbA1c in the UW and obesity groups. Conclusions: The high rate of OW and obesity (31.8%) emphasize the need for developing further strategies to prevent and treat excess fat accumulation in T1D. © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd ER -