Incidence of new-onset type 1 diabetes during Covid-19 pandemic: A French nationwide population-based study.

AIM: The association between infection with SARS-CoV-2 and the development of new-onset type 1 diabetes mellitus (T1DM) is unclear. The aim of this study was to examine the impact of the Covid-19 pandemic on the hospitalization rates for new-onset T1DM and diabetic ketoacidosis at diagnosis, in metropolitan France. METHODS: This nationwide retrospective cohort study included hospital data on all patients aged 1 to 35 years old, hospitalized in France due to onset of T1DM, in 2020 and 2021 compared to 2019. RESULTS: Apart from a decrease during the lockdown in 2020, the number of hospitalizations due to new-onset T1DM was not significantly different in 2020 and 2021 than it was in 2019. In the regions most affected by Covid-19 and covering 7,995,449 inhabitants aged from 1 to 35 years old, standardized hospitalization rates were not significantly different in 2020 and in 2021 compared with 2019. The number of hospitalizations for diabetic ketoacidosis at diagnosis was not significantly different after week 14 in 2020 and in 2021 compared with 2019. CONCLUSION: In this nationwide study, the incidence of hospitalizations for new-onset T1DM and the incidence of diabetic ketoacidosis at diagnosis was not increased during the Covid-19 pandemic in 2020 and 2021. Our results support the fact that infection with SARS-CoV-2 does not promote the development of T1DM.

Hospitalizations for Anorexia Nervosa during the COVID-19 Pandemic in France: A Nationwide Population-Based Study.

The COVID-19 pandemic has had a detrimental impact on mental health, including on food-related behaviors. However, little is known about the effect of the pandemic on anorexia nervosa (AN). We sought to assess an association between the COVID-19 pandemic and a potential increase in hospitalizations for AN in France. We compared the number of hospitalizations with a diagnosis of AN during the 21-month period following the onset of the pandemic with the 21-month period before the pandemic using Poisson regression models. We identified a significant increase in hospitalizations for girls aged 10 to 19 years (+45.9%, RR = 1.46[1.43-1.49]; p < 0.0001), and for young women aged 20 to 29 (+7.0%; RR = 1.07[1.04-1.11]; p < 0.0001). Regarding markers of severity, there was an increase in hospitalizations for AN associated with a self-harm diagnosis between the two periods. Multivariate analysis revealed that the risk of being admitted for self-harm with AN increased significantly during the pandemic period among patients aged 20-29 years (aOR = 1.39[1.06-1.81]; p < 0.05 vs. aOR = 1.15[0.87-1.53]; NS), whereas it remained high in patients aged 10 to 19 years (aOR = 2.40[1.89-3.05]; p < 0.0001 vs. aOR = 3.12[2.48-3.98]; p < 0.0001). Furthermore, our results suggest that the pandemic may have had a particular effect on the mental health of young women with AN, with both a sharp increase in hospitalizations and a high risk of self-harming behaviors.

Impact of the COVID-19 Epidemic on hospitalization for diabetic foot ulcers during lockdown: A French nationwide population-based study.

AIMS/HYPOTHESIS: The aim of this study was to examine the impact of the COVID-19 epidemic on the hospitalization rates for diabetic foot ulcer (DFU), osteomyelitis and lower limb revascularization procedure in people with DFU. METHODS: This nationwide retrospective cohort study included hospital data on all people hospitalized in France for diabetes in weeks 2-43 in 2020, including the COVID-19 lockdown period, compared to same period in 2019. RESULTS: The number of hospitalizations for DFU decreased significantly in weeks 12-19 (during the lockdown) (p < 10-4 ). Hospitalization for foot osteomyelitis also decreased significantly in weeks 12-19 (p < 10-4 ). The trend was the same for lower limb amputations and revascularizations associated with DFU or amputation. CONCLUSIONS/INTERPRETATION: The marked drop in hospitalization rates for DFU, osteomyelitis and lower limb revascularization procedures in people with DFU observed in France during the lockdown period suggests that COVID-19 was a barrier to DFU care, and may illustrate the combined deleterious effects of hospital overload and changes in health-related behaviour.