Table 2.

Frequency of completion of individual use steps during the formative and summative studies

Task, %	Formative study				Summative study
	Patients		Caregivers	Healthcare professionals	Patients		Caregivers		Healthcare professionals
	Untrained (n = 24)	Trained (n = 10)	Untrained (n = 10)	Untrained (n = 10)	Untrained (n = 35)	Trained (n = 16)	Untrained (n = 17)	Trained (n = 16)	Untrained (n = 15)
Take autoinjector out of refrigerator; wait 30 min	96	100	90	100	97	100	88	100	93
Wash hands	92	90	100	100	94	100	100	100	93
Check expiration date	96	100	100	100	91	100	94	100	93
Check autoinjector for damage	79	80	100	100	89	100	94	100	87
Check the liquid	92	100	100	100	97	100	94	100	100
Choose an injection site	96	100	100	100	100	100	100	100	100
Clean the site	96	100	100	100	97	100	82	100	93
Remove needle covera	100	100	100	100	100	100	100	100	100
Position the autoinjector	100	100	100	100	100	100	100	100	100
Pinch skin	88	100	80	100	91	100	100	94	93
Push down to unlock the autoinjectora	100	100	100	100	100	100	100	100	100
Press buttona	100	100	100	100	100	100	100	100	100
Hold for count and/or wait until blue indicator stops movinga	96	100	100	90	97	100	100	100	100
Dispose used autoinjector into sharps container	100	100	90	100	94	100	100	100	100

Steps classified as ‘A—correct completion’ plus ‘D—performed with difficulty’

^aTasks highlighted in bold are high-priority tasks, defined as those that required correct completion for successful dose delivery