“…Most studies were conducted solely with rural participants, except two that described a combination of rural and urban. 31,32 Eleven studies took place in the USA, [19][20][21][22][23]26,28,29,31,34,35 six in Australia, 17,18,24,25,32,39 three in Canada 27,30,33 and three in India. [36][37][38] Participants included infants under 24 months, 26,34 preschool children from 24 months to six years, 17,23,26,32,37,38 school-aged children over six and under 12 years, 20,21,27,35,39 both preschool and schoolaged children 18,19,22,24,25,28,29,33,36 and both school-aged Table 2.…”