Table 1. Characteristics of study population.
| Variables | Values |
|---|---|
| Patients | 74 |
| Male/female | 53/21 |
| Age (years) | 64±17 |
| Co-morbidity | 120* |
| COPD | 59 (49%) |
| Cancer | 36 (30%) |
| Infectious | 11 (9%) |
| Cardiovascular | 7 (6%) |
| Diabetes | 5 (4%) |
| Systemic rheumatic disease | 2 (2%) |
| Charlson comorbidity index score | 4.7±1.6 |
| Asa physical status | 2.6±0.7 |
| Causes of air-leaks | |
| Post-operative | 42 (57%) |
| Lobectomy | 7 (17%) |
| Wedge resection | 8 (19%) |
| Sleeve lobectomy | 1 (2%) |
| Decortication | 13 (31%) |
| Bullectomy | 13 (31%) |
| Secondary spontaneous pneumothorax | 24 (32%) |
| Emphysematous bulla | 22 (92%) |
| Cavitary infection process | 2 (8%) |
| Primary spontaneous pneumothorax | 2 (3%) |
| Latrogenic | 6 (8%) |
| After FNAB | 5 (83%) |
| Malposition of nasogastric feeding tube | 1 (17%) |
*, the sum of the comorbidities is more than 67 since a patient could have more than one co-morbidity. COPD, chronic obstructive pulmonary disease; ASA, American Society of Anaesthesiologist; FNAB, fine-needle aspiration biopsy.