“…Preschool-aged children (3–5 years) were recruited to participate in 21 studies [ 73 – 75 , 77 , 79 , 80 , 83 , 85 , 86 , 89 , 92 , 98 , 100 , 101 , 105 , 107 , 109 , 112 , 114 , 118 , 119 ], pre-adolescent children (6–9 years) in 20 studies [ 76 , 78 , 84 , 87 , 88 , 91 , 93 – 96 , 99 , 102 – 104 , 106 , 108 , 110 , 111 , 115 , 117 ], and only eight studies recruited adolescent participants (10–18 years) at baseline [ 71 , 72 , 81 , 82 , 90 , 97 , 113 , 116 ]. Although the studies included within this review were characterized by a wide range of sample sizes (10–33,717 children), 51% of included studies had sample sizes ≥ 100 participants.…”