Festo Charles, Vannevel Valerie, Ali Hasmot, Tamrat Tigest, Mollel Getrud J, Hlongwane Tsakane, Fahmida Kaniz A, Alland Kelsey, Barreix María, Mehrtash Hedieh, Silva Ronaldo, Thwin Soe Soe, Mehl Garrett, Labrique Alain B, Masanja Honorati, Tunçalp Ӧzge
Ifakara Health Institute, Dar es Salaam, Dar es Salaam, United Republic of Tanzania.
South African Medical Research Council Maternal and Infant Health Care Strategies Unit, Pretoria, South Africa.
NPJ Digit Med. 2023 Apr 17;6(1):69. doi: 10.1038/s41746-023-00804-z.
Undetected and unmonitored hypertension carries substantial mortality and morbidity, especially during pregnancy. We assessed the accuracy of OptiBP, a smartphone application for estimating blood pressure (BP), across diverse settings. The study was conducted in community settings: Gaibandha, Bangladesh and Ifakara, Tanzania for general populations, and Kalafong Provincial Tertiary Hospital, South Africa for pregnant populations. Based on guidance from the International Organization for Standardization (ISO) 81,060-2:2018 for non-invasive BP devices and global consensus statement, we compared BP measurements taken by two independent trained nurses on a standard auscultatory cuff to the BP measurements taken by a research version of OptiBP called CamBP. For ISO criterion 1, the mean error was 0.5 ± 5.8 mm Hg for the systolic blood pressure (SBP) and 0.1 ± 3.9 mmHg for the diastolic blood pressure (DBP) in South Africa; 0.8 ± 7.0 mmHg for the SBP and -0.4 ± 4.0 mmHg for the DBP in Tanzania; 3.3 ± 7.4 mmHg for the SBP and -0.4 ± 4.3 mmHg for the DBP in Bangladesh. For ISO criterion 2, the average standard deviation of the mean error per subject was 4.9 mmHg for the SBP and 3.4 mmHg for the DBP in South Africa; 6.3 mmHg for the SBP and 3.6 mmHg for the DBP in Tanzania; 6.4 mmHg for the SBP and 3.8 mmHg for the DBP in Bangladesh. OptiBP demonstrated accuracy against ISO standards in study populations, including pregnant populations, except in Bangladesh for SBP (criterion 2). Further research is needed to improve performance across different populations and integration within health systems.
未被检测和监测的高血压会带来很高的死亡率和发病率，尤其是在孕期。我们评估了一款用于估计血压（BP）的智能手机应用程序OptiBP在不同环境中的准确性。该研究在社区环境中进行：在孟加拉国的盖班达和坦桑尼亚的伊法卡拉针对普通人群，在南非的卡拉方省级三级医院针对孕妇群体。根据国际标准化组织（ISO）81060 - 2:2018对无创血压设备的指导以及全球共识声明，我们将两名经过独立培训的护士使用标准听诊袖带测量的血压与一款名为CamBP的OptiBP研究版本测量的血压进行了比较。对于ISO标准1，在南非，收缩压（SBP）的平均误差为0.5±5.8毫米汞柱，舒张压（DBP）为0.1±3.9毫米汞柱；在坦桑尼亚，SBP为0.8±7.0毫米汞柱，DBP为 -0.4±4.0毫米汞柱；在孟加拉国，SBP为3.3±7.4毫米汞柱，DBP为 -0.4±4.3毫米汞柱。对于ISO标准2，在南非，每个受试者平均误差的平均标准差SBP为4.9毫米汞柱，DBP为3.4毫米汞柱；在坦桑尼亚，SBP为6.3毫米汞柱，DBP为3.6毫米汞柱；在孟加拉国，SBP为6.4毫米汞柱，DBP为3.8毫米汞柱。除了在孟加拉国SBP（标准2）方面外，OptiBP在包括孕妇群体在内的研究人群中符合ISO标准。需要进一步研究以提高在不同人群中的性能以及在卫生系统中的整合程度。
