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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Contemp Clin Trials. 2018 May 12;70:24–34. doi: 10.1016/j.cct.2018.05.005

APPENDIX TABLE II.

Technical issues reported as part of unstructured feedback.

ID Technology specific difficulties
2 Iphone charge ran out if not plugged in.
3 At times I was frustrated with iphone, I could not always get it to transmit
4 Looking at historical trends in BP is difficult though app has this software.
7 Sometimes phone needed back up / charging.
9 The cuff was sometimes difficult to put on my left arm. I could put it on my R arm.
14 One barrier was when battery ran out.
15 My wife had to help when the correct screen did not come up. I had no previous experience with the smart phone.
16 Sometimes the main screen did not show up right away. Need a timing device or reminder beep to tell you that it is time to take BP.
17 Once in a while I had to monkey around with the app to get the correct screen up.
18 I had to play with the iphone to get the correct screen up. Coordinator showed me but I forgot.
23 Phone starts to lose charge. Had to keep re-charging. Had his own BP cuff and the study BP cuff and his own cuff did not always agree.
24 Sometimes App would not come up on the phone. Not familiar with Apple.
27 I took it when I went hunting but there was no cell service there.
34 I don’t like the iphone.
36 Would have liked a larger screen.
38 Sometimes I had to play around with the phone when it did not get a reading. Initially I was not sure that the readings were going through until study PI called me.
40 Want to access average values, charts on BP trends more readily.