Table 2.
Influence of HT on Nodule Cytology Classification According to TBSRTC
| HT | Non-HT | P Valuea | |
|---|---|---|---|
| No. of nodules biopsied | 3895 | 10,168 | |
| Nodule cytology by TBSRTC, no. (%) | <0.01 | ||
| Nondiagnostic | 168 (4.3) | 728 (7.2) | |
| No malignant cells | 2652 (68.1) | 7217 (71.0) | |
| Indeterminate | 791 (20.3) | 1750 (17.2) | |
| AUS, FLUS | 307 (7.9) | 635 (6.2) | |
| SFN | 249 (6.4) | 626 (6.2) | |
| SUSP | 235 (6.0) | 489 (4.8) | |
| Positive for malignancy | 284 (7.3) | 473 (4.7) |
Abbreviations: AUS, atypia of undetermined significance; FLUS, follicular lesion of undetermined significance; SFN, suspicious for follicular or Hürthle cell neoplasm; SUSP, suspicious for malignancy.
a
P value for 2 × 6 χ2 analysis of six TBSRTC categories.