P066 HOW BLOOD PRESSURE DEVICES ARE OBTAINED FOR HOME BLOOD PRESSURE MEASUREMENT: A MIXED-METHODS STUDY AMONG AUSTRALIA ADULTS

Background and Objective. Only 20% of automated blood pressure (BP) devices available for purchase are validated. However, how consumers obtain devices for home BP measurement and whether their devices are validated remains unknown, which was the aim of this study. Methods. Surveys (n=225) and interviews (n=27) among adults who measure BP at home in Australia (June-December 2023). Survey questions included how the BP device was obtained, device details to determine validation status, and considerations in choosing a device. Interviews explored how and why BP devices were obtained in detail. Results. Most participants (n=216, 96%) used an upper-arm cuff device, of which 52% (n=118) were validated. Of 9 participants that used wrist cuff devices, 67% (n=6) were validated. Most participants purchased (n=176, 91%) their BP device, predominantly from pharmacy (n=126, 72%; 50% validated), followed by online (n=36, 16%; 52% validated). Validated BP devices were on average $38.53 AUD more expensive than non-validated devices (p<0.001). Although accuracy was the most important consideration when choosing a BP device (n=112, 50%), few interview participants cited device validation status as a consideration. “I just assumed that they were all accurate”. Most interview participants avoided cheaper BP devices, believing these were less accurate, and they were willing to “make an investment” in their BP device due to the importance of getting an accurate BP measurement. Interview participants rarely received recommendations from their GP about which BP device to use and reported pharmacy staff provided retail support based on in-store device availability rather than information about accuracy. Conclusion. This study found only 50% of devices used by consumers for home BP measurement have been validated. Devices that are validated are more expensive, but critically, consumers are willing to make an investment in an accurate BP device. However, little guidance is provided to support consumers when selecting a BP device. These findings demonstrate the need for credible information and resources that support consumers to obtain validated BP devices.