“…The majority of the studies (n = 29) were cross sectional in design (e.g., O'Brien et al, 2011;Philippi et al, 2013;Powers et al, 2017); 18 were case-control studies (e.g., Falcão & Francisco, 2017;Troncone et al, 2020a) and four were longitudinal studies (e.g., Hartl et al, 2015;Troncone et al, 2018). In terms of sample composition, 24 studies had a sample consisting only of individuals with T1D (e.g., Blicke et al, 2015;de Wit et al, 2012); 14 studies had samples with both T1D and control participants (e.g., Baechle et al, 2014;Falcão & Francisco, 2017); four studies had samples of T1D adolescents and their parents (e.g., Eilander et al, 2017;Troncone et al 2020b); three studies had participants with T1D and T2D (Bachmeier et al 2020;Herpertz et al, 2001;Rockliffe-Fidler & Kiemle, 2003); and six studies had participants with T1D and other illnesses (e.g., individuals with rheumatic arthritis, bonefracture patients, individuals with an amputation, individuals with an eating disorder -ED) (e.g., Kaminsky & Dewey, 2013Mcdonald et al, 2021).…”