选择题：在某人群A和B两组人群中进行大肠癌的筛选，假定筛选试验的灵敏度和特异度都为70%，但A人群患病率为100/10万，B人群患病率为50/10万，则下列结论正确的是

  • 题目分类：执业医师
  • 题目类型：选择题
  • 查看权限：VIP
题目内容：

在某人群A和B两组人群中进行大肠癌的筛选，假定筛选试验的灵敏度和特异度都为70%，但A人群患病率为100/10万，B人群患病率为50/10万，则下列结论正确的是（　　）。

A.在A人群中试验的阴性预测值高于B人群

B.在A人群中试验的阳性预测值高于B人群

C.在A人群中试验的Kappa值高于B人群

D.在A人群中试验的可靠性高于B人群

E.在A人群中试验的真实性高于B人群

参考答案：

根据以下材料，回答41-45题(41) Teri Byrd?I was a zoo and wildlife park employee for years.

根据以下材料，回答41-45题(41) Teri Byrd?I was a zoo and wildlife park employee for years. Both the wildlife pa

分类：执业医师  题型：选择题
查看答案

根据以下材料，回答26-30题As the latest crop of students pen their undergraduate applicatio

根据以下材料，回答26-30题As the latest crop of students pen their undergraduate application form and weigh up

分类：执业医师  题型：选择题
查看答案

根据下列材料，回答问1-20题The idea that plants have some degree of consciousness first took

根据下列材料，回答问1-20题The idea that plants have some degree of consciousness first took root in the early 2

分类：执业医师  题型：选择题
查看答案

Write an e-mail to a professor at a British university, inviting him/her to orga

Write an e-mail to a professor at a British university, inviting him/her to organize a team for the

分类：执业医师  题型：选择题
查看答案

根据以下材料，回答36-40题Although ethics classes are common around the world, scientists a

根据以下材料，回答36-40题Although ethics classes are common around the world, scientists are unsure if their l

分类：执业医师  题型：选择题
查看答案