Table 5.

Evaluation metrics.

Evaluation metric		Number of papers
Evaluation of health changes related to use of the technology
	Health knowledge	25
	Behavior change (self-reported)	22
	Behavior change (observed)	18
	Biometric change	10
	Health-related quality of life	1
Evaluation of the technology itself
	Access and usage rates	31
	Self-reported satisfaction and acceptance	28
	Usefulness (self-reported)	22
	Ease of use (self-reported)	14
	Willingness to use	7
	Number of websites or television advertisements with desired information	4
	Technology literacy improvement	1