“…35,36 Slightly less than half of the studies were conducted with young children aged <5 years 27,29,30,[33][34][35][36][37]42,43 (45%, 10/23), 36% (8/23) included children aged 5-12 years 22,23,25,28,31,32,39,41 and five studies (18%, 5/23) targeted those over 13 years. 24,26,30,38,40 The majority of studies were observational and cross-sectional in design 6,[22][23][24][25][26]28,30,[33][34][35][36][37][38][39][40][41][42][43] (82%, 19/23). Three studies 25,35,37 involved observing parent/child dyads and the remaining were questionnaire based.…”