Association of Diabetic Ketoacidosis in Childhood New-Onset Type 1 Diabetes With Day of Presentation in Germany.

OBJECTIVE: Whether the day of the week on which the child presents affects timely diagnosis and risk of diabetic ketoacidosis (DKA) in children with new-onset type 1 diabetes (T1D) is not known. RESEARCH DESIGN AND METHODS: We used data of 30,717 children with new-onset T1D during the last 10 years from the German Prospective Diabetes Registry. We determined the odds ratios of T1D diagnosis and DKA on a weekday, public holiday, and school vacation. RESULTS: Compared with workdays, the odds ratios of being diagnosed with T1D were lower on weekends (0.39 [95% CI, 0.38–0.41]), public holidays (0.57 [0.53–0.63]), and school vacations (0.83 [0.80–0.85]). The odds of DKA diagnosis were also reduced on weekends (0.55 [0.52–0.59]), public holidays (0.73 [0.63–0.84]), and school vacations (0.85 [0.80–0.90]). Results did not change during the coronavirus 2019 pandemic. CONCLUSIONS: New-onset T1D and DKA in children are more often diagnosed during weekdays than weekends and holidays. [ABSTRACT FROM AUTHOR]