Ordinal logistic regression

We have previously discussed the use of conventional logistic regression when our aim is to assess binary or, in other words, dichotomous categorical outcomes.1,2 That is when the possible answers after examining the outcome variable can be either "yes" or "no." One such example in orthodontics is crowding alleviation after the use of different therapeutic approaches. Crowding alleviation can be either resolved—"yes"—or not resolved—"no."

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