Table 5.

Global sensitivity analysis of the ANN model in predicting pathological complete response.

	Rank 1st	Rank 2nd	Rank 3rd	Rank 4th	Rank 5th
Variables	Post-CRT CEA	RT-surgery interval	Chemotherapy regimen	Clinical N stage	Clinical T stage
VSR	1.57	1.50	1.45	1.37	1.32

ANN artificial neural network, CEA carcinoembryonic antigen, CRT chemoradiotherapy, RT radiation therapy, VSR variable sensitivity ratio.