Table 4 Comparison of main diagnostic values for inadequate and adequate fine needle aspirations.
Diagnostic indicator | Inadequate FNAs|| | Adequate FNAs¶ | p-value |
---|---|---|---|
Sensitivity (malignant, suspicious for malignancy, FN/SFN, and AUS/FLUS)*,† | 112/134 (83.6%) | 284/289 (98.3%) | <0.001 |
Sensitivity (malignant, suspicious for malignancy, and FN/SFN)‡,§ | 62/84 (73.8%) | 264/269 (98.1%) | <0.001 |
Specificity* | 38/60 (63.3%) | 30/56 (53.6%) | 0.288 |
Specificity (excluding AUS/FLUS) ‡ | 38/41 (92.7%) | 30/37 (81.1%) | 0.128 |
PPV for malignant, suspicious for malignancy, FN/SFN, and AUS/FLUS† | 112/134 (83.6%) | 284/310 (91.6%) | 0.013 |
PPV for malignant, suspicious for malignancy, and FN/SFN§ | 62/65 (95.4%) | 264/271 (97.4%) | 0.387 |
NPV for benign cytology | 38/60 (63.3%) | 30/35 (85.7%) | 0.020 |
Diagnostic accuracy (malignant, suspicious for malignancy, FN/SFN, AUS/FLUS and benign)* | 150/194 (77.3%) | 314/345 (91.0%) | <0.001 |
Diagnostic accuracy (malignant, suspicious for malignancy, FN/SFN, and benign)‡ | 100/125 (80.0%) | 294/306 (96.1%) | <0.001 |