“…The total number of participants across the studies was at least 192, as one study was unable to provide the exact number of individual participants (Pownell et al, 2023). Four studies comprising 36 participants (Chen et al, 2018;Messari & Hallam, 2003;Small et al, 2018;Visagie et al, 2020) reported ethnicity as follows: Chinese (n = 15), White British (n = 8), African (n = 4), Asian British (n = 2), Mixed descent (n = 2), White (n = 2), African-Caribbean (n = 1), Black African (n = 1) and White Irish (n = 1). In the remaining studies, ethnicity was either not reported (n = 8), reported as 'multiple ethnicities' (n = 1) or was unable to be determined as the ethnicity of participants who had completed qualitative feedback was not distinguished from participants who either did not complete treatment (n = 3) or were staff participants (n = 1).…”