Fig. 2
a Random based Forest plot of anxiety, b Random-effects meta-regression between anxiety rate and sample size, c Forest plot of subgroup random-effects meta-analysis of anxiety, d Random funnel plot and Trim&Fill in anxiety, e Random forest plot of depression, f Random-effects meta-regression between depression rate and sample size. (All of the Forest plots are the last representative of the whole forest plot due to the high number of included studies)