Assessing the acceptability of a text messaging service and smartphone app to support patient adherence to medications prescribed for high blood pressure: a pilot study

Table 3 Intervention engagement per delivery mode

Text messages	Frequency
Report whether or not the behaviour was performed	72
App
Report whether or not the behaviour was performed	52
Feedback on behaviour
Daily	15
Weekly	9
Tailor messages delivery
Snooze reminder messages	5
Update refill reminder day and time	7

Engagement with the intervention for the duration of 28 days. N = 22 patients for the text messaging. N = 2 for the smartphone app, after the text messaging intervention. Data extracted by digital log files