Table 2 Descriptive statistics of the variables.
Variable | Description | Mean | Min | Max |
|---|---|---|---|---|
Change MG | Choice Changes in MG cases | 1.97 | −1 | 5 |
Change ML | Choice Changes in ML cases | −1.36 | −6 | 2 |
Gender | 1: Male | 0.61 | 0 | 1 |
0: Female | 0.61 | 0 | 1 | |
Age | year | 34.4 | 19 | 58 |
Edu | 2: College | 0.92 | 0 | 2 |
1: High School | ||||
0: Junior Middle School | ||||
Income | RMB | 3950 | 2900 | 6000 |