Abstract P310: Preference for Home Blood Pressure Monitoring versus Ambulatory Blood Pressure Monitoring for Measuring Sleep Blood Pressure: The BetterBP Study

Background: Home blood pressure (BP) monitoring (HBPM) devices have been adapted as an alternative to ambulatory BP monitoring devices (ABPM) for measuring sleep BP. We evaluated participants' preference for using HBPM versus ABPM to monitor sleep BP in the BetterBP study. Methods: Participants in the BetterBP study (N=591) completed one night of HBPM (3 measurements total) and 24 hours of ABPM (measurements every 30 minutes) in random order. After completing both procedures, participants were asked about the side effects experienced, willingness to again perform HBPM for one night versus ABPM for 24 hours to monitor sleep BP, and overall preference for HBPM versus ABPM for monitoring BP. We used McNemar’s test to evaluate differences between devices. Results: Among all 591 participants, the mean age was 39 years old, and 63% were women. Additionally, 49% were non-Hispanic, White; 21% were non-Hispanic, Black; 15% were non-Hispanic, Asian; and 7% were Hispanic. Interference of normal sleeping pattern was less common for HBPM compared with ABPM (46% versus 57%; p<0.001). Overall, 7% and 6% of participants reported removing the HBPM and ABPM device, respectively, due to disturbance while sleeping (p=0.88). Also, 27% of participants reported pain while undergoing HBPM for one night compared to 47% for ABPM (p<0.001); 43% had irritation while undergoing HBPM for one night compared to 68% for ABPM (p<0.001); and 12% had bruising while undergoing HBPM compared to 23% for ABPM (p<0.001). For the willingness to perform one night of HBPM versus ABPM to monitor sleep BP, 80% were very or completely willing to use HBPM compared to 60% who were very or completely willing to use ABPM ( Table , p<0.001). For overall preference, 71% of participants preferred HBPM, 24% preferred ABPM, and 5% did not prefer either HPBM or ABPM. Conclusion: Participants reported fewer side effects and greater tolerability with HBPM than ABPM and preferred one night of HBPM over 24 hours of ABPM to monitor sleep BP.