Table 1.

Telehealth Usability Questionnaire items.

Components		Questionnaire items
Usefulness
	1	Telehealth improves my access to health care services
	2	Telehealth saves me time traveling to a hospital or specialist clinic
	3	Telehealth provides for my health care needs
Ease of use and learnability
	1	It was simple to use this system
	2	It was easy to learn to use the system
	3	I believe I could become productive quickly using this system
Interface quality
	1	The way I interact with this system is pleasant
	2	I like using the system
	3	The system is simple and easy to understand
	4	This system is able to do everything I would want it to be able to do
Interaction quality
	1	I could easily talk to the clinician using the telehealth system
	2	I could hear the clinician clearly using the telehealth system
	3	I felt I was able to express myself effectively
	4	Using the telehealth system, I could see the clinician as well as if we met in person
Reliability
	1	I think the visits provided over the telehealth system are the same as in-person visits
	2	Whenever I made a mistake using the system, I could recover easily and quickly
	3	The system gave error messages that clearly told me how to fix problems
Satisfaction and future use
	1	I feel comfortable communicating with the clinician using the telehealth system
	2	Telehealth is an acceptable way to receive health care services
	3	I would use telehealth services again
	4	Overall, I am satisfied with this telehealth system