Table A1.
Variables with measurement items factors.
| Security | Items | Reference |
| SE1 | I think PHR system (Shifaa platform) has mechanisms to ensure the safe transmission of its users’ information. | [174,175] |
| SE2 | I think PHR system (Shifaa platform) shows great concern for the security of any transactions. | |
| SE3 | I think PHR system (Shifaa platform) has sufficient technical capacity to ensure that no other organisation will supplant its identity on the Internet. | |
| SE4 | I am sure of the identity of PHR system (Shifaa platform) when I establish contact via the Internet. | |
| SE5 | When I send data to PHR system (Shifaa platform), I am sure that they will not be intercepted by unauthorised third parties. | |
| SE6 | I think PHR system (Shifaa platform) has sufficient technical capacity to ensure that the data I send will not be intercepted by hackers. | |
| SE7 | When I send data to PHR system (Shifaa platform), I am sure they cannot be modified by a third party. | |
| SE8 | I think PHR system (Shifaa platform) has sufficient technical capacity to ensure that the data I send cannot be modified by a third party. | |
| Privacy | Items | Reference |
| PRIV1 | I think PHR system (Shifaa platform) shows concern for the privacy of its users. | [175,176] |
| PRIV2 | I feel safe when I send personal information to PHR system (Shifaa platform). | |
| PRIV3 | I think PHR system (Shifaa platform) abides by personal data protection laws. | |
| PRIV4 | I think PHR system (Shifaa platform) only collects user personal data that are necessary for its activity. | |
| PRIV5 | I think PHR system (Shifaa platform) respects the user’s rights when obtaining personal information. | |
| PRIV6 | I think that PHR system (Shifaa platform) will not provide my personal information to other companies without my consent. | |
| Usability | Items | Reference |
| USAB1 | In PHR system (Shifaa platform) everything is easy to understand. | [177,178,179] |
| USAB2 | PHR system (Shifaa platform) is simple to use, even when using it for the first time. | |
| USAB3 | It is easy to find the information I need from PHR system (Shifaa platform). | |
| USAB4 | The structure and contents of PHR system (Shifaa platform) are easy to understand. | |
| USAB5 | It is easy to move within PHR system (Shifaa platform). | |
| USAB6 | The organisation of the contents of PHR system (Shifaa platform) makes it easy for me to know where I am when navigating it. | |
| USAB7 | When I am navigating PHR system (Shifaa platform), I feel that I am in control of what I can do. | |
| Usage | Items | Reference |
| Usage1 | I have an account on PHR system (Shifaa platform) to manage my health. | [16,18] |
| Usage2 | Currently using the PHR system (Shifaa platform) to manage my health. | |
| Usage3 | Use the PHR system (Shifaa platform) frequently to manage my health. | |
| Perceived Usefulness | Items | References |
| PU1 | Using the PHR system (Shifaa platform) improves the effectiveness of my health care. | [16,18,27] |
| PU2 | Using the PHR system (Shifaa platform) decreases the complexity of my health care. | |
| PU3 | Using the PHR system (Shifaa platform) increase the quality of my health care. | |
| PU4 | Using the PHR system (Shifaa platform) for my healthcare is a good idea. | |
| PU5 | I find the PHR system (Shifaa platform) useful in my healthcare. | |
| Perceived Ease of Use | Items | References |
| PEOU1 | I think that the PHR system (Shifaa platform) is flexible to use. | [16,18,27] |
| PEOU2 | Learning to operate the PHR system (Shifaa platform) is easy for me. | |
| PEOU3 | I can easily get the PHR system (Shifaa platform) to do what I want it to do. | |
| PHR Intention | Items | References |
| Intention to use 1 | I intend to continue using PHR system (Shifaa platform) to manage my health in the future. | [16,18,27] |
| Intention to use 2 | My willingness to use PHR system (Shifaa platform) is high. | |
| Intention to use 3 | I plan to continue to use PHR system (Shifaa platform) in the future. |