Table 1.

Definitions of participant categories.

Categories and subcategories				n		Definition
Participants				98		All patients willing to participate in the project.
	Intention to usea			57		All patients who indicated willingness to use the app at the beginning of the project.
	Nonadopters			52
		No intention to use		41		Patients who were not willing to use the app at the beginning of the project.
		With intention but never used		11		Patients who indicated willingness to use the app, but then did not use it at all.
	Adopters			46
		Dropouts		23		Patients who used the app, but did not continue use the app in the third month.
		Active users		23		Patients who continued to use the app into the third month.
			Low-frequency		14		Patients whose average weekly app usage was less than 3.5 days
			High-frequency		9		Patients whose average weekly app usage was more than 3.5 days

^aIncludes Nonadopters: With intention but never used, and Adopters.