“…Of the 22 included studies (see Table 2), 18 used qualitative methods (one used mixed-qualitative methods (Greenhalgh et al, 1998), 13 used in-depth interviews (Kelleher and Islam, 1994;Duthie-Nurse, 1998;Fagerli et al, 2005;Hjelm et al, 2005;Lawton et al, 2005Lawton et al, , 2006aLawton et al, , 2006bLawton et al, , 2007Lawton et al, , 2008, two used focus groups (Greenhalgh et al, 2011;Brown et al, 2006), and two used case study methods (Narayan and Rea, 1997;Fleming et al, 2008). Two studies used mixed methods (Greenhalgh et al, 2006;Lloyd et al, 2008) and three used quantitative methods (Naeem, 2003;Sedgwick et al, 2003;Povlsen et al, 2005).…”