“…Studies included in this review were published between 2007 and 2019 and the age of participants ranged from 10-92 years. Two studies were child specific (Poulsen et al, 2007(Poulsen et al, , 2008, two related to young adults (Roy et al, 2009;Orsmond et al, 2013), four specified older people (Pritchard et al, 2015;Arthanat et al, 2016;Taylor et al, 2016a;Stanley et al 2017), four included participants up to middle age (Ashby et al, 2012;Siemon et al, 2013;Blanche et al, 2015;Goods and Millsteed, 2016) and the remaining studies included adults over 18 including older people (Natturlund, 2010;Packer et al, 2012;Makdisi et al, 2013;Taylor et al, 2016b;Hand et al, 2017;Hanne et al, 2018;Boland et al, 2019;Barclay et al, 2019). Ten studies noted a predominance of male participants; nine a predominance of female participants and one did not specify participant gender.…”