Background Hypertensive disorders in pregnancy, particularly pre-eclampsia, pose a substantial health risk for both maternal and foetal outcomes. The BUMP (Blood Pressure Self-Monitoring in Pregnancy) interventions are being tested in a trial. They aim to facilitate the early detection of raised blood pressure through self-monitoring. This article outlines how the self-monitoring interventions in the BUMP trial were developed and modified using the person-based approach to promote engagement and adherence. Methods Key behavioural challenges associated with blood pressure self-monitoring in pregnancy were identified through synthesising qualitative pilot data and existing evidence, which informed guiding principles for the development process. Social cognitive theory was identified as an appropriate theoretical framework. A testable logic model was developed to illustrate the hypothesised processes of change associated with the intervention. Iterative qualitative feedback from women and staff informed modifications to the participant materials. Results The evidence synthesis suggested women face challenges integrating self-monitoring into their lives and that adherence is challenging at certain time points in pregnancy (for example, starting maternity leave). Intervention modification included strategies to address adherence but also focussed on modifying outcome expectancies, by providing messages explaining pre-eclampsia and outlining the potential benefits of self-monitoring. Conclusions With an in-depth understanding of the target population, several methods and approaches to plan and develop interventions specifically relevant to pregnant women were successfully integrated, to address barriers to behaviour change while ensuring they are easy to engage with, persuasive and acceptable.

中文翻译：

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BUMP 干预的干预计划和修改：用于早期检测妊娠期血压升高的数字干预。

背景 妊娠期高血压疾病，特别是先兆子痫，对母婴结局构成重大健康风险。BUMP（妊娠期血压自我监测）干预措施正在试验中进行测试。他们的目标是通过自我监测促进及早发现血压升高。本文概述了如何使用以人为本的方法来制定和修改 BUMP 试验中的自我监测干预措施，以促进参与和依从性。方法 通过综合定性试点数据和现有证据，确定了与妊娠期血压自我监测相关的关键行为挑战，为开发过程提供了指导原则。社会认知理论被认为是一个合适的理论框架。开发了一个可测试的逻辑模型来说明与干预相关的假设变化过程。来自妇女和工作人员的迭代定性反馈为参与者材料的修改提供了依据。结果综合证据表明，女性在将自我监控融入生活方面面临挑战，并且在怀孕期间的某些时间点（例如，开始产假）坚持自我监控具有挑战性。干预措施的修改包括解决依从性的策略，但也侧重于通过提供解释先兆子痫的信息并概述自我监测的潜在益处来修改结果预期。结论 通过对目标人群的深入了解，成功整合了几种规划和制定专门与孕妇相关的干预措施的方法和途径，以解决行为改变的障碍，同时确保它们易于参与、有说服力和可接受。