Table 3 Grading results of grading of air emboli (the Fisher’s exact test) in the two groups
Statistic indexes | The control group (n = 21) | The case group (n = 7) |
|---|---|---|
Grading (case) | ||
Small grade | 15 | 7 |
Middle grade | 6 | 0 |
Statistic indexes | The control group (n = 21) | The case group (n = 7) |
|---|---|---|
Grading (case) | ||
Small grade | 15 | 7 |
Middle grade | 6 | 0 |