im doing a clinical research for surgery. Main goal is to predict difficulty of operation with preoperatiive information. I found three variables as significant factor for difficulty of operation after linear logistic regression (both univariate and multivariate analysis).

Those 3 independent variables are continuous, categorical (binary) and categorical (binary). dependent variable is categorical (1,2 and 3 according to difficulty).

I want to then make some kind of scoring system to predict difficulty of operation. Is there any suggestion what model i can use?

New contributor
kazu is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct.
  • 1
    $\begingroup$ If your dependent variable is categorical with 3 categories how did you perform logistic regression? $\endgroup$ yesterday
  • $\begingroup$ Have a look at multinomial regression - it's an extension of logistic regression when the dependent variable has more than two categories. You can then rank the difficulty based on the probability of each class $\endgroup$
    – nwaldo
    13 hours ago


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.