Figure 2.
Comparison of school day sleeping times of young Australians from the current study (large dots, grey line) with recent data from other studies in developed countries. Note that in some cases, the number of data points for a country exceeds the number of studies conducted in that country because sleep duration data were presented separately for gender and/or region subsets. The dotted grey line represents the recommended sleep requirements according to the Centers for Disease Control and Prevention.
A, Australia18; B, Belgium39; Br, Brazil42; C, Canada43,44; F, Finland39,45; Fr, France46; G, Germany47; H, Hungary39; N, Netherlands48; No, Norway39,49; S, Switzerland39,50; Sp, Spain39; Sw, Sweden39; UK, United Kingdom39,51,52; US, United States.12,53–56