Table 1.

Univariate analysis of clinical features

Variable	No. of patients	MST (days)	P‐value (log–rank test)
Age (years)
≥65	16	235	0.454
<65	24	250
Sex
Male	29	243	0.926
Female	11	267
PS
≥1	24	182	0.048
0	16	309
Metastasis
1, 2	10	137	0.102
≥3	30	261
Chemotherapy
5‐FU‐based	26	245	0.594
CPT11 + CDDP	14	240

MST, median survival time; PS, performance status.