As secondary analysis, NLR was treated as an ordinalvariable with three levels based on terciles distribution.
2
The difficulty arises from the fact that an ordinalvariable has discrete values that are labeled with, but not, numerical values.
3
TDP-43 proteinopathy topographic stage was recorded as an ordinalvariable, and TDP-43 burden was defined by averaging a semi-quantitative six-point scale across six brain regions.
4
Patient outcome is characterized as a vector of two ordinalvariables accounting for toxicity and treatment efficacy.
5
The type of drug and the category of the working activity were synthesized as two different ordinalvariables.
6
The relationships between these ordinalvariables are then described by the underlying Gaussian graphical model and can be inferred by estimating the corresponding concentration matrix.