1. Perceived ease of use and usefulness of a personal health record system may vary among different demographics, with younger individuals generally finding it easier to use, men potentially perceiving it as more useful for technical tasks, and higher education levels correlating with a greater appreciation of its usefulness and ease of adoption.
2. In my experience with e-health applications, other factors such as technology self-efficacy, user interface design, user experience, and the perceived usefulness of the application are crucial for assessing the intention to use the system. Additionally, the quality of system design, the reliability and accuracy of the data provided, the level of technical support available, privacy and security concerns, and the integration with other health information systems are significant variables that should be considered.