Table 1.

Mean injection time into air (seconds) and mean derived volume dispensed (mg) at base conditions for each AAI

AAI type	Mean	SD	95% CI
Injection time (seconds)
Jext	0.17	0.006	[0.17–0.17]
EpiPen	0.19	0.017	[0.18–0.19]
Anapen	1.16	0.089	[1.13–1.20]
Volume dispensed (mg)
Jext	0.31	0.008	[0.30–0.31]
EpiPen	0.30	0.016	[0.29–0.30]
Anapen	0.29	0.023	[0.28–0.29]

Notes: Jext displayed the shortest injection time and the greatest volume dispensed, followed by EpiPen and Anapen. 15 AAIs of each type were tested.

Abbreviations: SD, standard deviation; CI, confidence intervals; AAI, adrenaline auto-injector.