“…A further 16 studies did not meet the age range criteria (Bewick et al, 2013;Enggasser et al, 2015;Sinadinovic et al, 2014., Bendtsen & Bendtsen, 2014., Bendtsen et al, 2015Bewick et al, 2010;Doumas et al, 2014;Ekman et al, 2011;Kypri et al, 2010;Kypri et al, 2013;Lotfipour et al, 2013;McCambridge et al, 2013;Moreira, Oskrochi & Foxcroft, 2012;Schulz, Kremers & de Vries, 2012;Schulz et al, 2013;Tensil, Jonas & Strüber, 2013). Four papers were simply commentaries on other studies, or reviews (Cronce et al, 2014;Naimi & Cole, 2014;Rodriguez et al, 2015), whilst one study discussed the method of designing a behaviour change intervention (Voogt et al, 2014c), resulting in exclusion from this review.…”