Table 4.
—ORs Describing the Risk of Malignancy by Nodal Characteristics
| EBUS Pathology | Predictor | Variable | OR (95% CI) | P Value |
| Radiographic characteristics | PET scan activity | Normal | Ref | … |
| Increased | 3.48 (1.40-8.64) | .0072a | ||
| CT scan lymph node size | < 10 mm | Ref | … | |
| 10-20 mm | 2.89 (1.11-7.52) | .029a | ||
| > 20 mm | 34.38 (6.02-196.48) | < .0001a | ||
| Ultrasound characteristics | Size | Continuous: change of 5 mm | 1.57 (1.23-1.99) | .0002a |
| < 10 mm | Ref | … | ||
| 10-20 mm | 3.39 (1.77-6.46) | .0002a | ||
| > 20 mm | 10.28 (4.31-24.50) | < .0001a | ||
| Shape | Triangular | Ref | … | |
| Oval | 3.50 (1.54-7.96) | .0028a | ||
| Round | 4.16 (1.67-10.36) | .0022a | ||
| Draping | 1.49 (0.46-4.89) | .51 | ||
| Echogenicity | Hyperechoic | Ref | … | |
| Hypoechoic | 1.47 (0.51-4.30) | .48 | ||
| Isoechoic | 0.61 (0.11-3.32) | .56 | ||
| Borders | Well-defined | Ref | … | |
| Indistinct | 0.98 (0.58-1.66) | .93 | ||
| Procedural characteristics | Biopsy location | Center | Ref | … |
| Periphery | 0.97 (0.56-1.66) | .91 |
See Table 3 legend for expansion of abbreviation. GEE = generalized estimating equation; Ref = referent.
a
Indicates statistical significance using α of 0.05. Estimates were calculated using a GEE logistic regression model as described in the “Statistical Analysis” section.