| Variable | Operationalization | Note |
| copy | More table copya |
|
| Online healthcare sales | Number of patients treated by the doctor within last two weeks |
|
| User review valence | The score of a doctor rated by patients who have purchased his services |
|
| User review volume | The number of user reviews |
|
| Critic rating of doctors | The title of doctor | Resident physician = 1, attending physician = 2, deputy chief physician = 3, chief physician = 4 |
| Activity of doctors | The total number of articles posted on Haodaifu.com by doctors |
|