Another, probably easier way to recognize an interaction is to notice that the lines connecting the points are not parallel.
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正交互作用/超相加交互作用/协同作用
<0: negative interaction or sub-additive or antagonism
Covariates:识别最可能施加干预的协变量以 降低主要暴露因素的效应(另一主要暴露因 素不容易施加干预的情况下)
To find other covariates to be intervened upon to eliminate much or most of the effect of the primary exposure of interest (it may not be possible to intervene directly on the primary exposure of interest).
交互作用10
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三、交互作用评价的意义
交互作用10
Subgroups:识别对某干预受益最大的人群( 亚组)(资源有限情况下)
To identify the subgroups of individuals in which the intervention or treatment is likely to have the largest effect (resources to implement interventions may be limited).