Table A1.

Questionnaire.

Perceived usefulness	Using PHR tool, I can understand my physical condition. Using PHR tool, I can manage my health. Using PHR tool, I can always ask medical staff for advice. Overall, PHR tool is useful for my health.
Perceived ease-of-use	I think the equipment for PHR tool is easy to use. I can easily get familiar with the functions of PHR tool. I think the use of PHR interface is very clear and easy to understand.
Subjective norm	My friends and family use PHR tool. My friends and family thought I should use PHR tool. Because my friends and family use remote personal health records, I use too.
Behavioral intention	I would like to continue to use PHR tool. My willingness to use PHR tool is high.
Usage behavior	I often use PHR tool. I use a lot of PHR tool.
Perceived severity	If too slow to find a serious disease, it will delay the timing of treatment. If I get a serious disease, it will change my whole life. I would be afraid to get serious illness.
Perceived susceptibility	I think I have a high risk to get serious disease. I will worry about my own serious illness. I feel more vulnerable than others.
Self-efficacy	I believe I will use PHR tool. I am confident that I can operate PHR tool. Even no one tell me how to use PHR tool, I still can use it.
Response efficacy	PHR tool can detect serious disease early. PHR tool can monitor blood glucose and other physiological information. PHR tool can let medical staff know my health status.
Response costs	Using PHR tool will take me a lot of time. Using PHR tool will change my lifestyle. Using PHR tool make me feel inconvenient.