Table 6 Diagnostic performance of the two observers in detecting malignant thyroid nodules using ultrasound criteria outlined in Table 4. This illustrates a safe approach where all malignant nodules are selected for FNA cytology analysis
Observer 1 (95 % CI) | Observer 2 (95 % CI) | |
|---|---|---|
Sensitivity | 1.00 (0.78, 1.00) | 1.00 (0.78, 1.00) |
Specificity | 0.76 (0.69, 0.83) | 0.72 (0.64, 0.79) |
Positive predictive value | 0.33 (0.21, 0.48) | 0.30 (0.19, 0.43) |
Negative predictive value | 1.00 (0.96, 1.00) | 1.00 (0.96, 1.00) |