Table 1. Variables used for the analysis.
| Variable | Description |
|---|---|
| Patient ID | Code |
| Gender | - Male |
| - Female | |
| Age | Number |
| Date of operation | Date |
| Type of operation | - Wedge/segmentectomy |
| - Lobectomy | |
| - Pneumonectomy | |
| Diagnosis/Morphology | - Primary neoplastic malignant |
| - Secondary neoplastic malignant | |
| - Other | |
| Postoperative complications | Y/N |
| - Pneumonia | |
| - Pulmonary embolism | |
| - Pulmonary edema | |
| - Mechanical ventilation (>24 h) | |
| - Atelectasis | |
| - ARDS | |
| - Respiratory failure | |
| - Prolonged air leak (>5 days) | |
| - Bronchopleural fistula | |
| - Atrial arrhythmia | |
| - Ventricular arrhythmia | |
| - Myocardial infarct | |
| - Heart failure | |
| - Renal failure | |
| - Empiema | |
| - Chylothorax | |
| - Emothorax | |
| - Neurological complication | |
| - Other | |
| Grouping of complication | Y/N |
| - Pulmonary complication | |
| - Cardiac complication | |
| - Major cardio-pulmonary complication | |
| Treatment for complication | - Reoperation |
| - Other (description free text) | |
| ICU | Y/N |
| Outcome at discharge | - Alive |
| - Died | |
| Outcome at 30th day | - Alive |
| - Died | |
| FEV1% | Number |
| DLCO% | Number |
| BMI | Number |
| ASA | Value |
| ECOG | Value |
Acronyms: ARDS, Adult Respiratory Distress Syndrome; ICU, Intensive Care Unit; FEV1, Forced Expiratory Volume in one second; DLCO, Carbon Monoxide Lung Diffusion Capacity; BMI, Body Mass Index; ASA, American Society Anesthesiologists score; ECOG, Eastern Cooperative Oncology Group score.