Table 1.

Selected participant responses and core themes.

Core theme	Code	Selected responses
Better assessment
	Accuracy	It (3D approach) allows me to accurately pinpoint any location I choose. [R1]
	Clarity	(3D approach) is much better in showing where my pain is...the whole body seems to be closer to reality than the diagram (2D pain drawing) is. [R2]
	Clarity	You can actually focus better on that one (3D approach), as the body area is well represented and I can more easily show where my aches are. [R3]
	Clarity	The figure (2D pain drawing) was not adequate…I would definitely prefer something better. [R4]
	Accuracy	Being able to move it (ie, rotate it) and have a closer peek on my different body parts (ie, zoom in/out) makes me feel that I have a much better control of how to show where my pain is. [R5]
Perceived clinical utility
	Allows correlation with activities	It (3D approach) can allow me to better correlate the pain I am experiencing in certain parts of my body with the activities that I had been doing. [R6]
	Allows correlation with medication	It (3D approach) made me realize that I was taking my medication at the wrong time of the day. [R7]
Intention to use
	User enthusiasm	Amazing! The old one (2D pain drawing) should be retired now. [R8]
	User preference	It (3D approach) is more “friendly” to me… I actually prefer this since our body parts are now easier to see and show. [R9]
	Increases user experience	The diagram (2D pain drawing) is a bit “cold”, and to be honest, I wouldn’t mind using something better. [R10]
	User preference	I prefer something better than that (2D pain drawing) and I think your tool (3D approach) is better to show my pain. [R11]
	User preference	Now, I would never go back to the old one (2D pain drawing) again. [R12]
	User preference	I prefer your tool instead of the paper (2D drawing) figure. [R13]
Perceived ease of use
	Ease of use	Although it might be a bit hard to learn to use, I would like to see this tool (3D approach) again. [R14]