Table 1 Patient characteristics and univariable analysis of risk factors for postoperative infection
From: Diagnostic value of routine chest tube tip culture in surgery for noninfectious lung disease
Characteristics | Patients with postoperative infection (n = 42) | Patients without postoperative infection (n = 168) | P value |
|---|---|---|---|
Demographics | |||
Age (years) | 62 [53–70] | 63 [50–69] | 0.67 |
Male sex | 27 (64.3) | 104 (61.9) | 0.78 |
BMI (kg/m2) | 25 [23–29] | 25 [22–27] | 0.10 |
Comorbidities | |||
COPD | 13 (31.0) | 36 (21.4) | 0.19 |
Diabetes mellitus | 7 (16.7) | 15 (8.9) | 0.16 |
Lung transplantation in history | 4 (9.5) | 2 (1.2) | 0.016 |
Cystic fibrosis | 0 (0.0) | 2 (1.2) | 1.00 |
Smoking status | 0.026 | ||
Never smoker | 9 (21.4) | 35 (20.8) | |
Former smoker | 31 (73.8) | 95 (56.5) | |
Current smoker | 2 (4.8) | 38 (22.6) | |
Surgical method | 0.092 | ||
VATS | 20 (52.4) | 104 (61.9) | |
Thoracotomy | 22 (47.6) | 64 (38.1) | |
Surgical procedure | 0.460 | ||
Oncological | |||
(Bi)lobectomy and lymph node dissection | 23 (54.8) | 89 (53.0) | |
Sleeve resection and lymph node dissection | 4 (9.5) | 6 (3.6) | |
Wedge resection | 2 (4.0) | 24 (14.3) | |
Pleural or mediastinal mass biopsy/excision | 0 (0) | 7 (4.2) | |
Other | 1 (2.4) | 5 (3.0) | |
Non-oncological | |||
(Bi)lobectomy | 1 (2.4) | 4 (2.4) | |
Wedge resection | 2 (4.8) | 4 (2.4) | |
Pleurodesis | 6 (14.3) | 23 (13.7) | |
Decortication | 2 (4.9) | 3 (1.8) | |
Other | 1 (2.4) | 3 (1.8) | |
Chest tube drainage | |||
Duration of postoperative chest drainage (days) | 4 [4–8] | 4 [3–6] | 0.007 |
Positive chest tube tip culture | 13 (31.0) | 28 (16.7) | 0.037 |