Table 2.

Descriptive statistics of app usage over the first 2 years of the pilot study.

App usage by feature		Statistics
Total queries		97,198
	Total query responses, n (%)	46,457 (47.8)
Medication queries		32,701
	Medication responses, n (%)	15,825 (58.4)
	Medication responses with notes, n (%)	503 (3.2)
	Affirmative responses, n (%)	14,837 (93.8)
	Negative responses, n (%)	988 (6.2)
Mood queries		32,304
	Mood responses, n (%)	15,346 (47.5)
	Mood responses with notes, n (%)	578 (3.8)
Stress queries		32,193
	Stress responses, n (%)	15,286 (47.5)
	Stress responses with notes, n (%)	562 (3.7)
Quizzes		4411
	Quiz responses, n (%)	1997 (45.3)
Total community message board posts		2073
	Unique posters (N=77), n (%)	60 (78)
	Monthly posts per enrolled member, mean (SD)	2.2 (1.7)
	Monthly posts per poster, mean (SD)	5.0 (2.7)