“…A total of 24 studies were identified. Six studies were from low-income countries (Bezabhe et al, 2014, Busza et al, 2014a, Busza et al, 2014b, MacPherson, 2013, Nsigaye et al, 2009, Shroufi et al, 2013), ten studies were from middle-income countries (Agbonyitor, 2009, Ferguson et al, 2014, Jama and Tshotsho, 2013, Kroeger et al, 2011, Lazarus et al, 2012, Miller et al, 2010, Naik, 2013, Sarna et al, 2014, Smillie et al, 2014, Naik et al, 2013), and eight from high-income countries (Cameron et al, 2009, Garland et al, 2011, Johnson et al, 2003, Magidson et al, 2014, Montoya et al, 2014, Nunn et al, 2010, Prentice et al, 2011, Weiss et al, 2006). We identified seven cross-cutting themes (Table 2).…”