“…18 datasets conducted in 11 countries during COVID-19 reported the prevalence of probable mental health disorders across different timepoints (details in S10 Appendix) (Algattas et al, 2021; Baumann et al, 2021; Cai et al, 2020; Castioni et al, 2021; Chene et al, 2021; De Kock et al, 2022; Doulias et al, 2021; Gündoĝmuş et al, 2021; Katsuta et al, 2021; Lasalvia et al, 2021; Lasalvia et al, 2020; Li et al; Magnavita et al, 2021a, b; Magnavita et al, 2020; Moore et al, 2021; Mosolova et al, 2021; Noaimi et al, 2021; Schmid et al, 2021; Shechter et al, 2021; Th’ng et al, 2021). Due to the variation in timepoints, differences in context, and the small number of studies, the temporal relationship between prevalence rates of mental health outcomes and the COVID-19 pandemic were narratively synthesised to avoid combining quantitative data inappropriately.…”