I am trying to determine the MCID of a PROM using a anchor based method (ROC). I have the following dataset.

Delta_PROM Status Anchor
30,6 1
18,7 0

The dataset has 800 rows. I'm using python, and I did the following:

  1. Train/test split the data
  2. Fit a Logistic model
  3. Predicted probability of 1
  4. Plotted ROC using y_test and predictions

My AUC is 0.8, which is a good value for this type of methodology and context. I calculated the Youden Index which is 0.87. Now I'm stuck: How do I know the Delta_PROM threshold using this value?



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.