Dr Bach was comparing data from screened people with a model of what would have happened to an unscreened group.

巴赫对接受筛查人群的有关数据与未接受筛查人群的预后模型进行了比较。

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The behavior of Model Rats changed. Learning and memory ability of the model group comparing with the normal group decreased significantly after model made, the difference was significant(P<0.01).

模型大鼠行为学发生改变，模型组与正常组比较学习成绩及记忆成绩降低，差异有显著性（P<0.01）。

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