Fig. 3

STBDmax versus BMI. The horizontal lines indicate the full length of the needle of Epipen Jr® and Epipen® respectively. The vertical dotted lines indicate those at risk of intraosseous injection using Epipen Jr® are those with a BMI < 17 kg/m2 and those at risk of intraosseous injection using Epipen® are those with a BMI < 25 kg/m2