Table 2 Comparison of PPCs among four groups
|  | Group C (n = 43) | Group P (n = 45) | Group D (n = 43) | Group PD (n = 44) | P value |
|---|---|---|---|---|---|
Postoperative PPC score | 2.09 ± 1.04 | 1.53 ± 0.92b | 1.60 ± 0.98a | 1.43 ± 0.85b | 0.007 |
PPCs incidence, n (%) | 16 (37.2) | 8 (17.8) | 9 (20.9) | 5 (11.4) a | 0.033 |
PPC score grading, n (%) | |||||
 0 | 3 (7.0) | 3 (6.7) | 4 (9.3) | 3 (6.8) | 0.960 |
 1 | 9 (20.9) | 24 (53.3) b | 19 (44.2) | 25 (56.8) b | 0.003 |
 2 | 15 (34.9) | 10 (22.2) | 11 (25.6) | 11 (25.0) | 0.573 |
 3 | 13 (30.2) | 7 (15.6) | 7 (16.3) | 4 (9.1) | 0.070 |
 4 | 3 (7.0) | 1 (2.2) | 2 (4.7) | 1 (2.3) | 0.572 |
PPCs type | |||||
 Pneumonia, n (%) | 8 (18.6) | 5 (11.1) | 5 (11.6) | 3 (6.8) | 0.422 |
 Pneumothorax, n (%) | 3 (7.0) | 0 (0.0) | 1 (2.3) | 1 (2.3) | 0.207 |
 Pleural effusion, n (%) | 2 (4.7) | 1 (2.2) | 0 (0.0) | 0 (0.0) | 0.331 |
 Secondary intubation, n (%) | 0 (0.0) | 1 (2.2) | 1 (2.3) | 0 (0.0) | 0.870 |
 Ventilator dependence > 48 h, n (%) | 3 (7.0) | 1 (2.2) | 2 (4.7) | 1 (2.3) | 0.572 |