Purely based on the data and using SPSS, a first nomogram has been created. It is only based on the number of time each distinct solution appear in the dataset.The results, although being slightly different, seem to reflect the nomograms from the last update of the Partin tables (Makarov et al., 2007) .
We can also notice a high number of 100% probabilities in the table. This essentialy reflects the final size of the dataset.
For instance, for a PSA of 0-2.5 and a Clinical Stage of T1c, no matter the value of the Gleason Score, the table based on the data predicts the pathological stage to be organ confined (2) in any case.
NB: A row with a series of zero values is not displayed in the table
Are all patients represented here? This does not look like all ~1900 patients have been included.
ReplyDeleteTotal for each Gleason Score column of the nomogram:
ReplyDeleteGS=5-6, total=1116
GS=3+4, total=399
GS=4+3, total=143
GS>=8, total=99
Total number of cases represented in the nomogram: 1757, confirming that all cases from the dataset have been included here.