Model | Functional form | Indication for use |
---|---|---|
Binary Logistic Model (BLM) |
| Response variable with two categories (Y = 0,1) |
Proportional Odds Model (POM) |
| Originally continuous response variable, subsequently grouped, and valid proportional odds assumption |
Unrestricted Partial Proportional Odds Model (PPOM-UR)* |
| Proportional odds assumption not valid |
Restricted Partial Proportional Odds Model (PPOM-R) |
| Proportional odds assumption not valid, and linear relationship for odds ratio (OR) between a co-variable and the response variable |