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| Detection result | Routine pathological examination | Accuracy | ||||||
|---|---|---|---|---|---|---|---|---|
| Positive | Negative | Total | TP (%) | TN (%) | NPV (%) | |||
| NIF detection at a dose of 0.5 mg/kg | Positive | 2 | 1 | 3 | 66.67 | 93.33 | 93.33 | |
| Negative | 1 | 14 | 15 | |||||
| NIF detection at a dose of 1 mg/kg | Positive | 7 | 11 | 18 | 87.5 | 74.42 | 96.97 | |
| Negative | 1 | 32 | 33 | |||||
NIF, near-infrared fluorescence; TP, true positive; TN, true negative; NPV, negative predictive value.
