Table 6 Comparison of VTE incidence (Note: Because the data in the table did not meet the requirements of four-grid chi-square test (0 and 1 appeared), the chi-square test was not carried out)
Groups | Non-occurred | Occurred | Incidence rate (%) | P value |
|---|---|---|---|---|
Test group (n = 50) | 50 | 0 | 0 | - |
Control group (n = 50) | 49 | 1 | 2 |  |
Test group (n = 50)-3 month | 50 | 0 | 0 | - |
Control group (n = 50)-3 month | 48 | 2 | 4 |  |