Table 6 Sensitivity, specificity, positive predictive value and negative predictive value
Patients | n | FNAC+ | FNAC− | Sensitivity | Specificity | Positive predictive value | Negative predictive value | ||
|---|---|---|---|---|---|---|---|---|---|
N+ | N− | N + | N− |  |  |  |  | ||
All patients | 108 | 49 | 6 | 18 | 35 | 73.13% | 85.36% | 89.09% | 66.03% |
Neoadjuvant chemotherapy group | 22 | 12 | 6 | 4 | 0 | 66.66% | Â | 75% | Â |
Pathological stage | Â | Â | Â | Â | Â | ||||
 ypT0 | 2/22 | 1 | 1 | 0 | 0 | ||||
 ypT1 | 6/22 | 2 | 3 | 1 | 0 | ||||
 ypT2 | 8/22 | 4 | 2 | 2 | 0 | ||||
 ypT3/T4 | 6/22 | 5 | 0 | 1 | 0 | ||||
Primary surgery group | 86 | 37 | 0 | 14 | 35 | 72.55% | 100% | 100% | 71.43% |
Tumor grade | |||||||||
 G1 | 12/86 | 3 | 0 | 1 | 8 | 75% | 100% | 100% | 88.88% |
 G2 | 55/86 | 26 | 0 | 11 | 18 | 70.27% | 100% | 100% | 62.07% |
 G3 | 19/86 | 8 | 0 | 3 | 8 | 72.72% | 100% | 100% | 72.72% |
Pathological stage | |||||||||
 pT1 | 38/86 | 11 | 0 | 6 | 21 | 64.70% | 100% | 100% | 77.77% |
 pT2 | 39/86 | 19 | 0 | 9 | 11 | 67.85% | 100% | 100% | 55% |
 pT3-T4 | 9/86 | 7 | 0 | 0 | 2 | 100% | 100% | 100% | 100% |
LVI/PNI | |||||||||
 Present | 21/86 | 12 | 0 | 6 | 3 | 66.66% | 100% | 100% | 30% |
 Absent | 65/86 | 25 | 0 | 9 | 31 | 73.53% | 100% | 100% | 77.5% |
Histological type | |||||||||
 Ductal | 66/86 | 26 | 0 | 15 | 25 | 63.41% | 100% | 100% | 62.5% |
 Lobular | 12/86 | 6 | 0 | 2 | 4 | 75% | 100% | 100% | 66.66% |
 Mixed | 6/86 | 5 | 0 | 1 | 0 | 83.33% | 100% | 100% | 0% |
 Mucinous | 2/86 | 2 | 0 | 0 | 1 | 100% | 100% | 100% | 100% |
Type of lesion | |||||||||
 Unifocal | 68/86 | 30 | 0 | 12 | 26 | 1.42% | 100% | 100% | 68.42% |
 Multifocal/multicentric | 18/86 | 7 | 0 | 3 | 8 | 70% | 100% | 100% | 72.72% |