“…All participants in comparative studies were aged 10–20 years at baseline. Five non‐comparative studies (Gelin, Hendrick, & Simon, ; Girz, Robinson, Foroughe, Jasper, & Boachie, ; Hurst & Zimmer‐Gembeck, ; Paulson‐Karlsson, Engstrom, & Nevonen, ; Robinson, Strahan, Girz, Wilson, & Boachie, ) had adolescent‐only samples, with the remaining samples comprising a mixture of children (<11 years), adolescents and young adults (>18 years) (Doyle, ; Henderson et al, ; Hoste, ; Johnston, O'Gara, Koman, Baker, & Anderson, ; Jones, Volker, Lock, Taylor, & Jacobi, ; Ornstein et al, ; Rienecke, Richmond, & Lebow, ; Rockwell, Boutelle, Trunko, Jacobs, & Kaye, ). Three non‐comparative studies reported mean ages of 14–15 years without stating overall age ranges (Hollesen, Clausen, & Rokkedal, ; Robinson et al, ; Salaminiou, Campbell, Simic, Kuipers, & Eisler, ), while Doyle et al (2013) reported outcomes in an intensive outpatient program separately for children (10–13 years) and adolescents (14–18 years), between whom there were no significant differences on any assessments.…”