The COVID-19 Pandemic and Canadian Pediatric Tertiary Care Hospitalizations for Anorexia Nervosa

Global studies show an increase in hospitalizations for pediatric eating disorders (EDs). No published Canadian studies have confirmed these findings in pediatric ED programs for one-year post onset of the COVID-19 pandemic. The primary objective was to examine health administrative data from two pediatric tertiary care ED programs: Alberta Children's Hospital (ACH) and Hospital for Sick Children (SickKids) to determine the number of pediatric hospitalizations with the most responsible discharge diagnosis of anorexia nervosa (AN).

This hospital-based design explored monthly pediatric hospitalizations in seven-year-olds to 18-year-olds between March 11, 2014 and March 11, 2021 using the Discharge Abstract databases. The analysis used negative binomial regression with robust standard errors to compare hospitalization counts in the months preceding and following the World Health Organization pandemic declaration (March 11, 2020).

Hospitalizations due to pediatric AN increased by 63% and 132% at SickKids (p < .001) and ACH (p < .001), respectively, in the first year of the pandemic compared to the previous six years. The total number of non-ED hospitalizations decreased by 29.3% and 2.4% at SickKids and ACH, respectively.

This is the first Canadian study to show a rise in pediatric hospitalizations over one year due to AN in two tertiary care hospitals following the onset of the pandemic, confirming the impact that the pandemic has had on children and adolescents with AN in Canada.