Univariate analysis for factors associated with nondiagnostic result on CNB
| Study Outcomes | Nondiagnostic Results | Diagnostic Results | P Value |
|---|---|---|---|
| Nodule size (mm) | 13.3 ± 8.0 | 14.4 ± 9.7 | .220 |
| <10 mm | 45 (5.1%) | 843 (94.9%) | .803 |
| ≥10 mm | 72 (4.8%) | 1416 (95.2%) | |
| Composition (No.) (%) | |||
| Solid (cystic component <50%) | 98 (4.4%) | 2135 (95.6%) | <.001 |
| Cyst (cystic component ≥50%) | 19 (13.3%) | 124 (86.7%) | |
| Calcification (No.) (%) | |||
| None | 82 (4.9%) | 1576 (95.1%) | .941 |
| Macrocalcification | 15 (4.1%) | 349 (95.9%) | .441 |
| Microcalcification | 20 (5.6%) | 334 (94.4%) | .494 |
| Location (No.) (%) | |||
| Upper/lower | 61 (6.4%) | 896 (93.6%) | .007 |
| Mid | 56 (3.9%) | 1363 (96.1%) |