Thank you for your interesting topic and presentation.
1. In Thailand, there are some barriers to use telemedicine.
For physicians, the physical examination is impossible in telemedicine. Some symptoms and presentation need physical examination to gather more information, then integrate them to make the provisional diagnosis. In addition, doctor and patient relationship is another concern in some physicians during the telemedicine use.
For patients, the access to the telemedicine needs some information technology, for example, the smart phone, 5G. Therefore, patients who do not use these technologies cannot access to the telemedicine.
For hospitals, telemedicine requires high budget for initialization and maintenance. Hospital directors have to carefully consider to implement the system.
2. To minimize selection bias, propensity score matching can partially equalize baseline characteristics between groups of patients. However, they have to select variable to include in propensity score calculation.