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. 2023 Feb 8. Online ahead of print. doi: 10.1016/j.jaac.2022.12.026

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©2023 American Academy of Child and Adolescent Psychiatry. Published by Elsevier Inc.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Relative risks (RRs) and 95% CIs of Incidence Rates During Pre−COVID-19 and COVID-19 Periods

Note:(A) Sex; (B) age group; (C) population sector; (D) socioeconomic status.Blue lines indicate pre−COVID-19 period (RR: 2019 year rate/2017 year rate); orange lines indicate COVID-19 period (RR: 2021 year rate/2019 year rate). ADHD = attention-deficit/hyperactivity disorder.

Relative risks (RRs) and 95% CIs of Incidence Rates During Pre−COVID-19 and COVID-19 Periods

Note:(A) Sex; (B) age group; (C) population sector; (D) socioeconomic status.Blue lines indicate pre−COVID-19 period (RR: 2019 year rate/2017 year rate); orange lines indicate COVID-19 period (RR: 2021 year rate/2019 year rate). ADHD = attention-deficit/hyperactivity disorder.