Table 2.

Participant Smartphone Survey Results^*

Item	Strongly agree	Agree	Neutral	Disagree	Strongly disagree
1.  The cellphone reminders helped me to remember to take study drug as directed**	8 (20.0%)	9 (22.5%)	17 (42.5%)	5 (12.5%)	1 (2.5%)
2.  I liked the fact that study staff could monitor my medication dosing and I didn't have to come to the clinic	22 (53.7%)	10 (24.4%)	8 (19.5%)	1 (2.4%)	0 (0.0%)
3.  I used the study cellphone for personal calls	11 (26.8%)	13 (31.7%)	6 (14.6%)	6 (14.6%)	5 (12.2%)
4.  I was confident that my privacy was protected when using the cell phone and sending the dosing video	19 (46.3%)	13 (31.7%)	8 (19.5%)	1 (2.4%)	0 (0.0%)
5.  It was easy to record the dosing video	24 (58.5%)	14 (34.1%)	1 (2.4%)	1 (2.4%)	1 (2.4%)
6.  The reminders to record and send the dosing video were helpful**	13 (31.7%)	7 (17.1%)	17 (41.5%)	2 (4.9%)	2 (4.9%)
7.  It was easy to send the dosing video	22 (55.0%)	12 (30.0%)	5 (12.5%)	0 (0.0%)	1 (2.5%)
8.  There was sufficient technical support when I ran into problems using the cellphone	15 (36.6%)	13 (31.7%)	10 (24.4%)	3 (7.3%)	0 (0.0%)
9.  I received enough training so that I could use the cell phone	21 (51.2%)	14 (34.1%)	5 (12.2%)	0 (0.0%)	1 (2.4%)
10. If applicable, having both a study cell phone and personal cell phone was cumbersome	4 (10.0%)	7 (17.5%)	14 (35.0%)	8 (20.0%)	7 (17.5%)
11. I am better able to use a smartphone now than I was at the beginning of the study	5 (12.2%)	8 (19.5%)	16 (39.0%)	6 (14.6%)	6 (14.6%)
12. The compensation I received for sending the videos was important	14 (34.1%)	13 (31.7%)	8 (19.5%)	4 (9.8%)	2 (4.9%)
13. Having to take videos of my dosing helped me to take my study drug	20 (48.8%)	13 (31.7%)	5 (12.2%)	3 (7.3%)	0 (0.0%)

^*N=40 or 41 per item. 40 participants completed the entire survey; 1 participant partially completed the survey; 8 participants missed the final study visit and were not surveyed.

^**Participants were texted dosing reminders on an as-needed basis. Not all participants received reminders.