Table 1.

Model parameters for disease-free survival and overall survival.

Parameters	Survival model	Scale (λ), Mean (SE)	Shape (γ), Mean (SE)	Adjusted R2	Correlation Coefficient
DFS
GP regimen	Weibull	0.00059 (0.00016)	1.48831 (0.07527)	0.95393	−0.97349
TPF regimen	Weibull	0.00256 (0.00063)	1.14471 (0.06796)	0.93703	−0.97115
OS
GP regimen	Exponential	0.00085 (0.00005)	–	0.81016	−0.95174
TPF regimen	Weibull	0.00097 (0.00033)	1.15449 (0.09365)	0.89176	−0.95184

DFS, disease-free survival; GP, gemcitabine and cisplatin; PD, progress disease; SE, standard error; TPF, docetaxel and cisplatin plus fluorouracil.