“…No communication process with the researchers of the studies was required for verification or clarification of the data because data presented in the manuscripts were considered adequate. From these studies, nine were conducted in Asia (People’s Republic of China (Shi et al, 2008, 2011), Korea (Cho et al, 2011; Kim et al, 2012, 2019), Singapore (Whitton et al, 2018), Iran (Hosseini-Esfahani et al, 2012), Lebanon (Matta et al, 2016), India (Satija et al, 2015)), five in the USA (Boggs et al, 2011; Gadgil et al, 2015; Newby et al, 2003, 2004; Schulze et al, 2006), five in South America (Brazil (Cunha et al, 2010; Machado Arruda et al, 2016; Silveira, et al, 2018), Mexico (Denova-Gutiérrez et al, 2011; Flores et al, 2010)), four in Oceania (Australia (Arabshahi et al, 2016; Livingstone and McNaughton, 2017, 2018), New Zealand (Schrijvers et al, 2016)) and three in Europe (Denmark (Togo et al, 2004), Germany (Schulz et al, 2005), Greece (Karfopoulou et al, 2017)). Nine of the studies were prospective (Arabshahi et al, 2016; Boggs et al, 2011; Hosseini-Esfahani et al, 2012; Newby et al, 2003, 2004; Schulz et al, 2005; Schulze et al, 2006; Shi et al, 2011; Togo et al, 2004) and the rest of them had a cross-sectional design (Cho et al, 2011; Cunha et al, 2010; Denova-Gutiérrez et al, 2011; Flores et al, 2010; Gadgil et al, 2015; Karfopoulou et al, 2017; Kim et al, 2012, 2019; Livingstone and McNaughton, 2017, 2018; Machado Arruda et al, 2016;…”