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Background: There are several observations that the onset of coronavirus 19 (COVID-19) pandemic was associated with an increase in the incidence of diabetic ketoacidosis (DKA). However, due to heterogeneity in study designs and country-specific healthcare policies, more national-level evidence is needed to provide generalizable conclusions., Objective: To compare the rate of DKA in Polish children diagnosed with type 1 diabetes (T1D) between the first year of COVID-19 pandemic (15 March 2020 to 15 March 2021) and the preceding year (15 March 2019 to 15 March 2020)., Methods: Reference centers in 13 regions (covering ~88% of Polish children) retrospectively reported all new-onset T1D cases in children from assessed periods, including DKA status at admission, administered procedures and outcomes. Secondly, we collected regions' demographic characteristics and the daily-reported number of COVID-19-related deaths in each region., Results: We recorded 3062 cases of new-onset T1D (53.3% boys, mean age 9.5 ± 4.3 years old) of which 1347 (44%) had DKA. Comparing pre- and post-COVID-19 period, we observed a significant increase in the rate of DKA (37.5%-49.4%, p < .0001). The fraction of moderate (+5.4%) and severe (+3.4%) DKA cases increased significantly (p = .0089), and more episodes required assisted ventilation (+2.1%, p = .0337). Two episodes of DKA during 2020/2021 period were fatal. By region, change in DKA frequency correlated with initial COVID-19 death toll (March/April 2020) (R = .6, p = .0287) and change in T1D incidence (R = .7, p = .0080)., Conclusions: The clinical picture of new-onset children T1D in Poland deteriorated over a 2-year period. The observed increase in the frequency of DKA and its severity were significantly associated with the overlapping timing of the COVID-19 epidemic., (© 2022 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

Objective: To assess the influence of thyroid hormones status and coexistence of autoimmune thyroiditis on optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) results in children with Type 1 diabetes (T1D)., Research Design and Methods: In the prospective, observational study (n = 175) we analyzed the impact of thyroid hormones on OCT results and the differences between the matched groups of children with T1D (n = 84; age = 13.14 ± 3.6; diabetes duration = 5.99 ± 3.3 years) and the children with T1D and autoimmune thyroiditis (AT) (n = 20; age = 13.94 ± 3.6; diabetes duration = 6.7 ± 4 years). We analyzed the following parameters: fovea avascular zone (FAZ), foveal thickness (FT), parafoveal thickness (PFT), ganglion cell complex (GCC), loss volume (global-GLV, focal-FLV), capillary vessel density: superficial (whole-wsVD, foveal-fsVD, parafoveal-psVD), and deep (whole-wdVD, foveal-fdVD, parafoveal-pdVD. The differences between the groups were tested by the unpaired t-Student test, Mann-Whitney U test as appropriate, whereas p level .05 was recognized as significant., Results: We detected the significant correlations between thyroid-stimulating hormone (TSH) level and PFT (r = -0.14; p < .05), psVD (r = -0.18; p < .005). The level of free triiodothyronine (FT3) was correlated with psVD (r = -0.14; p < .05). We found significant correlation between free thyroxine (FT4) and fsVD (r = -0.17; p < .01). In the studied T1D and AT groups there were statistical differences in FT (p < .005), PFT (p < .03), GCC (p < .01), and GLV (p < .003). We did not observe any significant differences in the FAZ area between the groups., Conclusions: In our patients the co-occurrence of T1D and AT worsens the status of retinal parameters. Further studies are necessary to observe these relations and their potential influence on the occurrence of diabetic retinopathy (DR)., (© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)

Aim: Despite its characteristic symptoms, type 1 diabetes (T1D) is still diagnosed late causing the development of diabetic ketoacidosis (DKA). The aim of this study was to estimate the incidence of DKA and factors associated with the development of acidosis at T1D recognition in Polish children aged 0-17., Methods: The study population consisted of 2100 children with newly diagnosed T1D in the years 2010-2014 in 7 hospitals in eastern and central Poland. The population living in these areas accounts for 35% of the Polish population. DKA was defined as a capillary pH < 7.3, blood glucose > 11 mmol/L. The analyzed data included age, sex, diabetes recognition, pH, glycated hemoglobin (HbA1c), fasting C-peptide, and body mass index standard deviation score (BMI-SDS)., Results: We observed DKA in 28.6% of children. There were 2 peaks in DKA occurrence: in children <5 years of age (33.9%) and aged 10-12 (34%). The highest incidence of DKA was noted in children aged 0-2 (48.4%). In the group with DKA, moderate and severe DKA occurred in 46.7% of children. Girls and children <2 years of age were more prone to severe DKA. The multiple logistic regression analysis showed the following factors associated with DKA: age (P = .002), fasting C-peptide (P = .0001), HbA1c (P = .0001), no family history of T1D (P = .0001), and BMI-SDS (P = .0001)., Conclusions: The incidence of DKA is high and remained unchanged over the last 5 years. Increasing the awareness of symptoms of DKA is recommended among children <5 years of age (especially <2 years of age) and aged 10-12. Children <2 years of age and girls were at the highest risk of severe DKA., (© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)