“…In total, 17 studies were rated as having low risk of detection bias, 85 as having moderate risk, and none as having high risk. For attrition bias, 77 studies were rated as low risk, 17 as moderate risk and 8 as high risk.Meta-analytic pooling of the estimates yielded the prevalence of self-reported anxiety symptoms to be 18.2% (95% CI 13.6-22.8, 10 studies, n = 10 577)6,12,[28][29][30][31][32][33][34][35] for the first trimester, 19.1% (95% CI 15.9-22.4, 17 studies, n = 24 499)10,12,29,31,32,[34][35][36][37][38][39][40][41][42][43][44][45] for the second trimester and 24.6% (95% CI 21.2-28.0, 33 studies, n = 116 720)3,5,7,12,13,[29][30][31][32]34,35,37,40,43,44,[46][47][48][49][50]…”