“…Four papers are qualitative (Farrell et al, 2017 ; Hobson et al, 2009 ; Lennan, 2014 ; Siouta et al, 2019 ), two of which use ethnography (Farrell et al, 2017 ; Siouta et al, 2019 ), one grounded theory approach (Hobson et al, 2009 ) and one participatory evaluation (Lennan, 2014 ). Two papers used mixed methods (Farrell et al, 2020 ; Ignoffo et al, 2021 ); eight are observational studies (Bruinooge et al, 2018 ; Dennison et al, 2021 ; Farrell et al, 2010 ; Lam & Cheung, 2016 ; Maier et al, 2018 ; Patel et al, 2016 ; Simons et al, 2010 ; Towle et al, 2011 ); and one used a Delphi design (Ignoffo et al, 2016 ). Two papers (Farrell et al, 2020 ; Siouta et al, 2019 ) undertook secondary analysis on primary data collected in an ethnographic study (Farrell et al, 2017 ) and all three are therefore included in this review.…”