Table 1.
Patient characteristics
| Characteristic | Value |
|---|---|
| Patients, n | 80 |
| Age (years) | 69 (60–77) |
| Male sex | 53 (66.3) |
| Smoking status | |
| Never smoker | 24 (30.0) |
| Ex-smoker | 32 (40.0) |
| Current smoker | 24 (30.0) |
| Smoking pack-year | 40 (25–50) |
| Underlying condition | |
| Previous malignancy | |
| NSCLC | 7 (8.8) |
| Extra-thoracic malignancy | 11 (13.8) |
| Lymphoma | 3 (3.8) |
| Interstitial lung disease | 2 (2.5) |
| Previous history of pulmonary tuberculosis | 4 (5.0) |
| COPD | 18 (22.5) |
| Purpose of EBUS-TBNA | |
| Lung cancer staging and/or diagnosis | 65 (81.3) |
| Metastasis from extra-thoracic malignancy | 10 (12.5) |
| Lymphoma | 2 (2.5) |
| Sarcoidosis | 3 (3.7) |
| Examined lymph node, total | 149 |
| Examined lymph node per patients | 2 (1–3) |
| Nodal station* | |
| 2R | 14 (9.4) |
| 2 L | 1 (0.7) |
| 4R | 41 (27.5) |
| 4 L | 18 (12.1) |
| 7 | 47 (31.5) |
| 10R | 9 (6.0) |
| 10 L | 9 (6.0) |
| 11R | 5 (3.4) |
| 11 L | 2 (1.3) |
| 3P: paraesophageal | 2 (1.4): 1 (0.7) |
| SUVmax on FDG PET/CT† | 5.0 (2.3–6.3) |
Data presented as n (%) or median (interquartile range), unless otherwise indicated
*2R, right upper paratracheal; 2 L, left upper paratracheal; 4R, right lower paratrachea; 4 L, left lower paratracheal; 7, subcarina; 10R, right hilar; 10 L, left hilar; 11R, right interlobar; 11 L, left interlobar; 3P, retrotracheal
†18-Fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) results were available from 103 lymph nodes in 57 patients
COPD, chronic obstructive pulmonary disease; EBUS-TBNA, endobronchial ultrasound-guided transbronchial needle aspiration; NSCLC, non-small cell lung cancer; SUVmax, maximal standardized uptake value