Ethical considerations
The study protocol was approved by the Ethics Committee of the Tohoku University Graduate School of Medicine (approval number: 2017-1-400) and adhered to the ethical principles of the Declaration of Helsinki. This study was conducted in compliance with the CONSORT guidelines. The trial registration number is UMIN-CTR (UMIN000027657). The study details, including an overview of the study objectives and other information, how to withdraw cooperation, protection of personal information, how to operate the tablet, encryption of transmitted data, and restrictions on access to the server, were adequately explained to the participants, and consent to participate was obtained orally and in writing.The study provisions included the tablet and communication costs associated with the study but not the electricity bill for using the tablet. Consolidated anonymization was used to protect participants’ personal information. The intervention program was conducted in a private room where privacy was maintained, and non-researcher access to the room was restricted during data viewing, phone calls, and video calls. The researcher always logged out of the telenursing system when leaving the computer terminal.