Table 2 Comparison of operation-relative indexes between the study and control groups
Group | Study group (n = 42) | Control group (n = 31) | Test value | P value |
|---|---|---|---|---|
Operative time (min) | 84.23 ± 21.34 | 87.76 ± 18.61 | t = 1.033 | 0.806 |
intraoperative blood loss (ml) | 65.58 ± 18.29 | 116.75 ± 20.06 | t = 8.355 | 0.024 |
Placement time of drainage tube (d) | 3.13 ± 1.09 | 5.87 ± 1.23 | t = 7.142 | 0.036 |
Drainage amount of chest tube (ml) | 102.25 ± 28.27 | 154.05 ± 26.81 | t = 6.083 | 0.033 |
Postoperative complications | χ2 = 4.638 | 0.031 | ||
Pulmonary infection | 1 (2.3%) | 3 (9.6%) | χ2 = 1.833 | 0.305 |
Atelectasis | 0 (0%) | 2 (6.4%) | χ2 = 2.786 | 0.177 |
Pleural effusion | 3 (7.1%) | 4 (12.9%) | χ2 = 0.683 | 0.448 |