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[主观题]
一种筛检乳腺癌的试验用于研究经病理检查证实患有乳腺癌的400例妇女和未患乳腺癌的400名妇女,结
果患癌组有100例阳性,未患癌组有50例阳性,该试验能将实际无病判定为阴性的能力是
A.100/300=0.33
B.100/400=0.25
C.100/150=0.67
D.50/400=0.125
E.350/400=0.87
查看答案
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A.100/300=0.33
B.100/400=0.25
C.100/150=0.67
D.50/400=0.125
E.350/400=0.87
A.100/400=0.25
B.350/400=0.87
C.100/150=0.67
D.100/300=0.3
E.50/400=0.5
A、100/400
B、350/400
C、100/150
D、100/300
E、350/650
A.90%
B.15%
C.20%
D.30%
E.12%
A.90%
B.10%
C.25%
D.30%
E.12%
A.90%
B.10%
C.25%
D.30%
E.12%
此试验的灵敏度是()
A.87.5%
B.67%
C.25%
D.33%
E.12%
A.80%
B.20%
C.60%
D.40%
E.30%
A.25.0%
B.67.O%
C.77.8%
D.33.0%
E.12.0%
A.87.5%
B.67%
C.33%
D.25%
E.12.5%