Acute health care use among children during the first 2.5 years of the COVID-19 pandemic in Ontario, Canada: a population-based repeated cross-sectional study

but not to the same degree as those for gastroenteritis and 1000 COVID-19 pandemic onset 800 600 All ED visits, expected 400 All ED visits, observed High-acuity ED visits, expected High-acuity ED visits, observed 200 0 17 17 17 17 7 8 8 80 0 0 0 01 01 01 01 01 8 01 9 19 19 9 0 00 0 01 02 02 2 0 20 21 21 21 21 22 22 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 0 20, , 2 0 0 2 1 1. [...] CMAJ | January 16, 2024 | Volume 196 | Issue 1 E5 Admission rate per 1000 population Research 5 COVID-19 pandemic onset 4 3 2 1 ICU admissions, expected ICU admissions, observed 0 17 17 17 17 17 18 18 18 18 19 19 19 19 20 20 20 20 1 1 1 1 2 2 20 20 20 20 20 20 20 20 20 20 20 20 20 0 0 2 2 2 2 2 2 , , , , , , , , , , 2 2 2 0 20 20 20 20 20 20 20. [...] 2.0 COVID-19 pandemic onset 1.5 1.0 0.5 Mortality, expected Mortality, observed 0.0 17 17 17 17 17 17 18 18 18 18 18 80 0 0 0 0 0 0 0 0 0 0 01 01 9 19 9 9 90 01 01 01 01 9 20 20 20 20 0 0 10 0 0 0 02 02 02 02 1 21 21 21 21 22 22 22 22 , 2 , 2 21 1 1, 1, 2 0 0 0 0 0 0 0 0 1, 2 1, 2 1, 2 2 1, 1, 2 , 2 , 2 , 2 , 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2. [...] E6 CMAJ | January 16, 2024 | Volume 196 | Issue 1 Research Mortality rate per 1000 population Admission rate per 1000 population 6 COVID-19 pandemic onset 4 2 New presentations of cancer, expected New presentations of cancer, observed 0 17 17 7 7 7 7 8 8 8 8 8 8 9 9 9 9 9 9 0 0 0 0 0 0 1 1 1 1 1 1 2 2 2 2 20 20 20 1 01 01 01 01 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 , , , , 2 , 2 ,. [...] 5 COVID-19 pandemic onset 4 3 2 1 New presentations of diabetes, observed New presentations of diabetes, expected 0 17 17 17 17 17 17 18 18 18 18 18 18 19 90 0 0 0 0 0 0 0 0 0 0 0 0 01 01 9 19 19 19 0 0 0 0 00 0 0 02 02 02 02 02 02 0 21 21 21 21 21 21 22 22 22 22 2 2 2 2 1, 1, 1, 1, 1, 2 2 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 , , , , , , , , , , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2 , 2.