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25.0% 67.0% 77.8% 33.0% 12.0%
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12.0% 25.0% 33.8% 67.0% 77.8%
25.0% 67.0% 77.8% 33.0% 12.0%阳性预测值=350/(350+100)×100=77.8%
25.0% 67.0% 77.8% 33.0% 12.0%
25.0% 670% 77.8% 33.0% 12.0%
阳性似然比 特异度 灵敏度 阳性结果的预测值 阴性结果的预测值
提高方法的灵敏度 采用串联试验 提高阴性预测值 采用双盲 正确选择病例