“…As shown in Table S1, the relationships between the COVID-19 pandemic and OCD among children and adolescents were mixed. That notwithstanding, an overwhelming majority of the included studies (n = 17; 77%) reported that the COVID-19 pandemic had an adverse impact on OCD among children and adolescents [4,5,7,[32][33][34]36,[38][39][40][41][42]45,46,[48][49][50]. A few studies (n = 3, 17%) found mixed relationships [31,37,47], and two (n = 2, 9%) found no influence of the pandemic on OCD among children and adolescents [30,51].…”