Research Article
Ultrasound-Guided Fine Needle Aspiration of Deep Thyroid Nodule: Is There a Correlation between the Nodule’s Depth and Nondiagnostic Results?
Table 2
Correlation between nodule depth and nondiagnostic cytology (Bethesda 1) according to depth cut-off.
| Nodule depth (mm) | n | Bethesda 1 | Bethesda 2–6 | p |
| <10 | 147 | 12, 30.0 | 135, 55.6 | 0.003 | ≥10 | 136 | 28, 70.0 | 108, 44.4 | | <9 | 126 | 10, 25.0 | 116, 47.7 | 0.007 | ≥9 | 157 | 30, 75.0 | 127, 52.3 | | <8 | 97 | 8, 20.0 | 89, 36.6 | 0.040 | ≥8 | 186 | 32, 80.0 | 154, 63.4 | | act<7 | 67 | 5, 12.5 | 62, 25.5 | 0.073 | ≥7 | 216 | 35, 87.5 | 181, 74.5 | | <6 | 55 | 5, 12.5 | 50, 20.6 | 0.232 | ≥6 | 228 | 35, 87.5 | 193, 79.4 | |
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