Implement the information of whether or not a tumour extends over the mid-sagittal plane as a risk factor for contralateral involvement into the model.
The core idea so far is to introduce (ideally only) one new parameter that modulates the contralateral base probabilities depending on the extension risk factor.
Regarding this parameter, the best idea I had so far was to write the base probabilities contralateral for patients with midline extension as a linear combination between the ipsilateral base parameters and the contralateral base probabilities for patients without midline extension.
But if I really use this is yet to be decided.
Implement the information of whether or not a tumour extends over the mid-sagittal plane as a risk factor for contralateral involvement into the model.
The core idea so far is to introduce (ideally only) one new parameter that modulates the contralateral base probabilities depending on the extension risk factor.
Regarding this parameter, the best idea I had so far was to write the base probabilities contralateral for patients with midline extension as a linear combination between the ipsilateral base parameters and the contralateral base probabilities for patients without midline extension. But if I really use this is yet to be decided.