Table 1 Description of variables in the logistic model of PSM
Variable name | Description |
|---|---|
Dependent variable | Â |
 Group | intervention group (1); control group (0) |
Independent variable | Â |
 Gender | male (1); female (0) |
 Age (year) | continuous |
 Experience (year) | continuous |
 Education level | high school or less (1); some college or associates (2); bachelors or higher (3) |
 Title | not certified (1); certified doctor (2); house physician (3); doctor in charge of a case (4); assistant director physician and above (5) |
 Monthly income (yuan) | <1500 (1); 1501-2000 (2); 2001-2500 (3); 2501-3000 (4); >3001 (5) |