“…Both studies were conducted after 2010. We also assessed of the extent of youth engagement over time by comparing engagement in studies conducted in or before 2010 [19,20,22,23,25‐27,31,33,34,39‐41,45‐48,52‐54,59,60,66,68,72,73,77,78,80,82,83,88,89,109,115,121,130], to studies conducted after 2010 [21,24,28‐30,32,35‐37,42‐44,50,51,56‐58,60,62‐64,67,69‐71,75,76,79,81,84‐86,90,100,110,111,129]. We found youth engagement in 28 out of 37 interventions (76%) conducted in or before 2010, and in 30 out of 37 interventions (81%) conducted after 2010.…”