Do epinephrine auto-injectors have an unsuitable needle length in children and adolescents at risk for anaphylaxis from food allergy?

Table 5 Number of children 15–30 kg at risk of subcutaneous injection (STMD_max and STMD_min) or periosteal or bone injection (STBD_max and STBD_min)

Brand	Needle length mm	STMD_min	STMD_max	STBD _min	STBD _max
EpipenJr^® 0.15 mg Auvi-Q^® 0.15 mg
STBD_max	12.7	–	–	–	11
STMD_max	10.7	–	1	–	–
Jext^®
STBD_max	15.7	–	–	–	38
STMD_max	13.7	–	0	–	–
Emerade^® 0.15 mg
STBD_min	16.0	–	–	0	–
STMD_min	14.0	0	–	–	–

Number of children at risk of getting a subcutaneous injection (STMD_max and STMD_min) or injection into the periosteum or bone (STBD_max and STBD_min) for the different EAIs. The data are in percentages. For estimation of the penetration of the needle into the muscle, STMD, the needle length has been reduced by 2 mm. i.e., the length of the needle’s orifice. The thickness of the endomysium has been neglected

ISSN: 1710-1492