“…Five of the 12 studies (41.7%) took place in China [ 43 , 44 , 46 , 48 , 49 ], followed by 3 studies (25%) in Iran [ 47 , 50 , 52 ]. The primary outcome measure of 8 of the 12 studies (66.7%) was the depressive symptoms of women who were pregnant or in the postpartum period [ 41 , 42 , 43 , 46 , 47 , 48 , 50 , 52 ]. Seven of these articles [ 42 , 43 , 46 , 47 , 48 , 50 , 52 ] described the use of the Edinburgh Postnatal Depression Scale to identify depressive symptoms and one article [ 41 ] described the use of the Patient Health Questionnaire—9 to quantify depressive symptoms.…”