Table 3.
—EBUS Results of All Patients
| EBUS Result |
|||
| Mediastinal/Hilar Metastasis | Positive | Negative | Total |
| Present | 41 | 6 | 47 |
| Absent | 0 | 49 | 49 |
| Total | 41 | 55 | 96a |
Sensitivity, 87%; specificity, 100%; negative predictive value, 89%; positive predictive value, 100%. EBUS = endobronchial ultrasound.
a
Four patients excluded because true stage unknown: two with metastasis found at surgery in lymph nodes not undergoing biopsy at time of EBUS, one lost to follow-up, one with radiographically larger lymph node but no tissue verification of metastasis.