Table 1. User activity over time and demographic characteristics in smartphone users, who downloaded and used "Medication Plan from 12/14/2010 - 04/02/2012 (* regular use was defined as using the application at least once a week for at least 28 days, § percent of 2279 users who provided personal information).

n (%)	User activity and demographic characteristics
11688	Total users
3406 (29)	Regular users*
3209 (27)	Application used for at least 84 days
2279	Users who provided personal information
1554 (68§)	Men
1122 (49§)	Finished secondary school as highest educational qualification
420 (18§)	Finished school with qualifications for university studies as highest educational qualification
589 (26§)	Holding a university degree as highest educational qualification