Recent literature is unanimous in making the point that categorising continuous predictors should be well justified and motivated, and that, if necessary, the selected criterion for categorisation should be objective and sufficiently validated.
Because of greatly varying criteria for low-risk categorisation, care standards, midwives' training, cooperation between FMUs and OUs, etc, considerable caution must be observed when generalising findings to other settings and countries.
For the uni-dimensional measurement approach, the criteria for treatment response categorisation were also modified with PR being defined as >30% decrease in tumor diameter, SD being <30% reduction to <20% increase in diameter and DP being >20% increase in tumor diameter[ 8].
"Myths and beliefs are domains of experience that are relevant for categorisation," Lakoff writes.
This is similarly true for categorisation of energy system modelling challenges.
This chapter propses a descriptive framework for categorisation and characterisation of the different forms of interaction with visual abstractions (VAs).
Table 4 for categorisation of major themes.
The worst response at any site was used for categorisation.
Random-effects can also account for continuous covariates in the analysis, without the need for categorisation.
The present paper gives a summary of reasons for categorisation and methodological drawbacks of this approach.
