A Blockchain-Applied Personal Health Record Application: Development and User Experience

【Author】 Kim, Ji Woong; Kim, Su Jin; Cha, Won Chul; Kim, Taerim

【Source】APPLIED SCIENCES-BASEL

【影响因子】2.838

【Abstract】This study aims to introduce a novel blockchain-applied personal health records (PHR) application and validate its user experience. The system transmits the part corresponding to the patient's personal information off-chain and prevents data forgery and falsification by storing encrypted data on-chain. Patients may easily trace the opt-in and opt-out history of their consent data and dynamically store the consent system for data exchange on the blockchain. A mixed-method study using a questionnaire, in-depth interviews, and usability evaluation were conducted for 30 participants. The system usability score was 74.0, indicating the high usability of the application. Those who were familiar with blockchain showed confidence in the application, but those unfamiliar wanted their data to be safe using another way. Most of the participants were interested in exchanging and using their medical data and considered security important but those unfamiliar wanted their data to be safe using another way. We found that participants were concerned about data security and considered a blockchain-based PHR as a novel way to store and exchange their medical information securely. Blockchain is not a visible technology. However, a blockchain-applied PHR must be able to win user trust through visualizations, certificates, and system descriptions.

【Keywords】medical informatics applications; blockchain; health records; personal

【发表时间】2022 FEB

【收录时间】2022-03-17

【文献类型】期刊

【主题类别】

区块链应用-医疗领域-