“…Population: most trials were conducted in upper-middle-income countries (Brazil, Chile, China, Iran, Lebanon, Malaysia, Mexico and South Africa) (Langer et al, 1998;Bastani et al, 2006;Aracena et al, 2009;Carvalho et al, 2009;Cooper et al, 2009;Le Roux et al, 2013;Le Roux et al, 2014; Rotheram-Borus et al, 2014a; Rotheram-Borus et al, 2014b; Tomlinson, 2014; Karamoozian and Askarizadeh, 2015;Murray et al, 2015;Tomlinson et al, 2015;Tomlinson et al, 2016b;Tomlinson et al, 2016a;Zhao et al, 2017, Rotheram-Fuller et al, 2018Mohd Shukri et al, 2019;Nabulsi et al, 2019;Rotheram-Borus et al, 2019;Guo et al, 2020;Zhao et al, 2020) followed by lower-middle-income (India, Nigeria and Pakistan) (Rahman et al, 2008;Tripathy et al, 2010;Maselko et al, 2015;Dabas et al, 2019;Fuhr et al, 2019;Gureje et al, 2019;Sikander et al, 2019;Rajeswari and SanjeevaReddy, 2020), low-income (Pakistan) (Rahman et al, 2008;Maselko et al, 2015) and a multi-site trial of lower-middle (Cuba) and upper-middle-income countries (Argentina, Brazil and Mexico) (Villar et al, 1992) (Table 1). Most trials enrolled pregnant women in their second and/or third trimester (Villar et al, 1992; Epidemiology and Psychiatric Sciences Langer et al, 1998;Bastani et al, 2006;Rahman et al, 2008;Aracena et al, 2009;Co...…”