“…One study ( Liguori et al, 2020 ) came from Italy while the others were all from China. As for diagnostic criteria of depressive symptoms, four studies used Patient Health Questionnaire (9-item version, PHQ-9) or its Chinese version ( Liu et al, 2020 ; Guo et al, 2020 ; Hu et al, 2020 ; Ma et al, 2020 ), two studies used Zung Self-rating Depression Scale (SDS) ( Nie et al, 2020 ; Yuan et al, 2020 ), one study used the Chinese version of Hospital Anxiety and Depression Scale (HADS) ( Zhang et al, 2020 ), and one study didn’t report specific scale ( Liguori et al, 2020 ).…”