Table 6 The classification of postoperative complications

Pulmonary

14 (3.21%)

11 (2.00%)

0.308

1.629

0.732–3.624

  Pneumonia

5 (1.15%)

4 (0.73%)

  Pleural effusion

5 (1.15%)

3 (0.54%)

  Atelectasis

3 (0.69%)

2 (0.36%)

  Else

1 (0.23%)

2 (0.36%)

Gastrointestinal

4 (0.92%)

7 (1.27%)

0.763

0.720

0.209–2.474

  Nausea and vomiting

3 (0.69%)

5 (0.91%)

  Diarrhea

1 (0.23%)

2 (0.36%)

Cardiovascular

2 (0.46%)

4 (0.73%)

0.699

0.630

0.115–3.457

  Arrhythmia

1 (0.23%)

2 (0.36%)

  Cardiac arrest

1 (0.23%)

2 (0.36%)

Neuropsychiatric

3 (0.69%)

1 (0.18%)

0.327

3.811

0.395–36.762

Wound

2 (0.46%)

9 (1.63%)

0.125

0.278

0.060–1.291

  Bleeding

0 (0%)

3 (0.54%)

  Poor healing

1 (0.23%)

4 (0.73%)

Else

1 (0.23%)

2 (0.36%)

Infection

7 (1.61%)

3 (0.54%)

0.117

2.981

0.766–11.594

Thrombosis

2 (0.46%)

5 (0.91%)

0.474

0.503

0.097–2.606

Fever

5 (1.15%)

1 (0.18%)

0.093

6.381

0.743–54.816