表 2.
A组和B组SLNs检出指标的比较 %
| 组别 | 例数 | SLNs检出率 | 灵敏度 | 准确度 | 假阴性率 |
| A组 | 45 | 95.6 | 92.9 | 97.7 | 7.1 |
| B组 | 45 | 80.0 | 84.6 | 94.4 | 15.4 |
| χ2 | 5.075 | 0.464 | 0.506 | 0.464 | |
| P | 0.024 | 0.496 | 0.450 | 0.496 |
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