Table 4. Concordance rates for molecular subtypes between CNB and SE (five subtypes, four subtypes).
| CNB | SE | BA | CR | Kappa | P value | ||||
|---|---|---|---|---|---|---|---|---|---|
| Luminal A | Luminal B | HER2 | TNBC | ||||||
| B− | B+ | ||||||||
| Five subtypes | 0.82 | 0.82 | 0.74 | <0.001 | |||||
| Luminal A | 276 | 127 | 2 | 0 | 2 | 0.86 | <0.001 | ||
| Luminal B | |||||||||
| B− | 51 | 518 | 6 | 1 | 15 | 0.85 | <0.001 | ||
| B+ | 0 | 3 | 165 | 23 | 0 | 0.94 | <0.001 | ||
| HER2 | 1 | 3 | 12 | 94 | 1 | 0.88 | <0.001 | ||
| TNBC | 1 | 6 | 0 | 3 | 105 | 0.92 | <0.001 | ||
| Four subtypes | 0.82 | 0.83 | 0.70 | <0.001 | |||||
| Luminal A | 276 | 129 | 0 | 2 | 0.84 | <0.001 | |||
| Luminal B | 51 | 692 | 24 | 15 | 0.82 | <0.001 | |||
| HER2 | 1 | 15 | 94 | 1 | 0.78 | <0.001 | |||
| TNBC | 1 | 6 | 3 | 105 | 0.85 | <0.001 | |||
CNB, core needle biopsy; SE, surgical excision; HER2, human epidermal growth factor receptor-2; TNBC, triple negative breast cancer; BA, balance accuracy; CR, confidence rate.