... The other 18 studies (Chami et al., 2012;De Visschere et al., 2015;Fiske and Lloyd, 1992;Forsell et al., 2010Forsell et al., , 2011Frenkel, 1999;Gately et al., 2011;Hilton et al., 2016;Paley et al., 2004;Paulsson et al., 2003Paulsson et al., , 2002Porter et al., 2015;Sonde et al., 2011;Sumi et al., 2001;Tham and Hardy, 2013;Wardh et al., 1997Wardh et al., , 2012Webb et al., 2015) include care aides in their study sample but report findings across various care provider groups and do not give results specific to care aides (Table 3). Ten studies were conducted in Sweden (Forsell et al., 2010(Forsell et al., , 2011Lindqvist et al., 2013;Paulsson et al., 2003Paulsson et al., , 2002Sonde et al., 2011;Wardh et al., 1997Wardh et al., , 2003Wardh et al., , 2012Wardh and Wikstrom, 2014), six each in the UK (Fiske and Lloyd, 1992;Frenkel et al., 2002;Frenkel, 1999;Gately et al., 2011;Porter et al., 2015;Weeks and Fiske, 1994) and the USA (Chalmers et al., 1996(Chalmers et al., , 1994Hardy et al., 1995;Jablonski et al., 2009;Pyle et al., 1999;Reed et al., 2006), four each in Australia (Fallon, 2009;Fricker and Lewis, 2009;Jones and Sleeman, 2009;Paley et al., 2004;Tan et al., 2009;Tham and Hardy, 2013;Webb et al., 2015) and Canada (Compton and Kline, 2015;Dharamsi et al., 2009;Le et al., 2012;McNally et al., 2012), three in Brazil (de Mello and Padilha, 2009;Junges et al., 2014;Reis et al., 2011) two in Belgium (De Visschere et al., 2015Janssens et al., 2016), one each in Japan (Sumi et al., 2001), New Zealand (McKelvey et al., 2003, Norway , and Switzerland (Chung et al., 1997(Chung et al., , 2000, and two in multiple countries (Chami For many of the reported barriers it is unclear whether they were reported by interviewed managers or care aides, or whether they reflect the Weak (continued on next page) Hilton et al., 2016). Fifteen studies had a cross-sectional design (Chung et al., 1997(Chung et al., , 2000Fiske and Lloyd, 1992;Frenkel, 1999;Gately et al., 2011;Hardy et al., 1995;Jablonski et al., 2009;Junges et al., 2014;Paulsson et al., 2003;Porter et al., 2015;Pyle et al., 1999;Sumi et al., 2001;Wardh et al., 1997Wardh et al., , 2012Webb et al., 2015;Willumsen et al., 2012), 13 were qualitative studies (Chami et al., 2012;de Mello and Padilha, 2009;De Visschere et al., 2015;Lindqvist et al., 2013;McKelvey et al., 2003;McNally et al., 2012;Paley et al., 2004;Paulsson et al., 2002;Reis et al., 2011;Sonde et al., 2011;Tham and Hardy, 2013;Wardh et al., 2003;Weeks and Fiske, 1994), seven were mixed methods studies (Chalmers et al., 1996(Chalmers et al., , 1994Compton and Kline, 2015;Dharamsi et al., 2009;Fallon, 2009;Fricker and Lewis, 2009;Hilton et al., 2016;Jones and Sleeman, 2009;Tan et al., 2009;Wardh and Wikstrom, 2014), three applied a one-group pre-post design (Forsell et al., 2010(Forsell et al., , 2011Reed et al., 2006), and three were randomized controlled trials (Frenkel et al., 2002;Janssens et al., 2016;Le et al., 2012). ...