Table 3.

Open-ended participant feedback about the CPReality application categorized thematically, N = 51.

		Number of responses
Please tell us what you liked about the augmented reality CPR training application?a	Real-time audiovisual feedback: -Allowed appropriate adjustment of CC in real-time -Helped deliver effective CC	35
	Blood flow visualization: -Made experience more realistic -Helped visualize the goal of CC -Helped understand the effect of compressions on perfusing vital organs	24
	Use of technology	3
	Performance scorecard at the end	1
	Nothing	1
	No response	7
What would you change about the augmented reality CPR training application?a	Position the blood circulation hologram on top of instead of next to the manikin	12
	Provide users with real-time stats during CC	9
	Sound effect quality or volume	4
	Headset weight and stability	2
	Subject reported dizziness	1
	Nothing	8
	No response	15

CPR, cardiopulmonary resuscitation; CC, chest compression.

^aSome comments fall under more than one category.