Table 4.

Survival Analysis for Subgroup of Patients with Age >40

Group	Short Time Interval (n=442)		Long Time Interval (n=387)		P value
	5-Year	10-Year	5-Year	10-Year
OS	88.6%	77.4%	86.8%	78.2%	0.568*
DFS	81.5%	74.7%	78.3%	70.4%	0.202*

Note: *Calculated by Kaplan–Meier method.

Abbreviations: OS, overall survival; DFS, disease-free survival.