From parameter to phenotype
Following statistical assessment, if a mutant exhibits a significant phenotypic change from the control group, then the IMPC pipeline will attempt to associate a Mammalian Phenotype (MP) term to the data.
The particular MP term(s) defined for a parameter are maintained in [IMPReSS](https://www.mousephenotype.org/impress). Often, the called phenotype indicates an increase or decrease of the parameter measured. However, in some cases the direction cannot be determined and so the called phenotype only indicates a general abnormality.