Table 2.

Association of clinicopathologic characteristics with RFS and OS

RFSOS
VariableNo. of casesNo. of eventsPaNo. of eventsPa
Age, y0.3510.126
 ≤501541
 51–601953
 61–701930
 >70291212
Sex0.8240.708
 Male41125
 Female41127
Tumor site0.1090.048
 Proximal42159
 Distal4093
Tumor size0.5280.804
 <5.038105
 ≥5.044147
AJCC tumor (T)0.0130.038
 T3T3178
 T41174
AJCC lymph node (N)0.3570.379
 N02874
 N135104
 N21974
AJCC stage0.3400.733
 II2874
 III54178
Histologic grade0.8890.676
 Well/moderate65199
 Poor/others1753
Adjuvant chemotherapy0.8690.585
 Yes611861
 No2164
Oxaliplatin use0.2040.995
 Yes1861
 No641811

Abbreviations: RFS, recurrence-free survival; OS, overall survival.

  • aLog-rank P value.