Brief Article
Copyright ©2010 Baishideng.
World J Gastroenterol. Aug 7, 2010; 16(29): 3709-3715
Published online Aug 7, 2010. doi: 10.3748/wjg.v16.i29.3709
Table 1 Patient characteristics n (%)
All patients (n = 108)XRT (n = 33)5FU-RT (n = 52)Chemo alone (n = 23)P-value1 for XRT vs
5FU-RTChemo alone
Age (yr)
Median606457560.00320.032
Inter-quartile range49.5-66.057.7-68.848.0-63.749.3-65.7
Gender
Male65 (60.2)22 (66.7)30 (57.7)13 (56.5)0.50.6
Female43 (39.8)11 (33.3)22 (42.3)10 (43.5)
ECOG
06 (5.6)1 (3.0)3 (5.8)2 (8.7)1.00.6
1 102 (94.4)32 (97.0)49 (94.2)21 (91.3)
Helicobacter pylori status
Yes36 (53.7)16 (66.7)15 (50.0)5 (38.5)0.30.2
No31 (46.3)8 (33.3)15 (50.0)8 (61.5)
Surgical margins
Positive21 (19.4)4 (12.1)14 (26.9)3 (13.0)0.21.0
Negative87 (80.6)29 (87.9)38 (73.1)20 (87.0)
Stage
1 or 238 (35.2)12 (36.4)14 (26.9)12 (52.2)0.50.3
3 or 470 (64.8)21 (63.6)38 (73.1)11 (47.8)
Grade
1 or 231 (28.7)12 (36.4)12 (23.1)7 (30.4)0.20.8
377 (71.3)21 (63.6)40 (76.9)16 (69.6)
Albumin
< 3012 (13.3)4 (12.9)4 (10.0)4 (21.1)0.70.5
≥ 3078 (86.7)27 (87.1)36 (90.0)15 (78.9)
CEA
Normal50 (90.9)17 (89.5)24 (92.3)9 (90.0)1.01.0
High5 (9.1)2 (10.5)2 (7.7)1 (10.0)
Hemoglobin
< 1026 (25.7)8 (24.2)14 (29.2)4 (20.0)0.81.0
≥ 1075 (74.3)25 (75.8)34 (70.8)16 (80.0)
Table 2 Recurrence-free survival and overall survival analysis
VariableCategories/unitsnHR (95% CI)P-value
Recurrence-free survival
TreatmentXRT1081
5FU-RT1.00 (0.508-1.959)1.0
Chemo only1.05 (0.448-2.462)0.9
TreatmentXRT1081
5FU-RT0.971 (0.477-1.966)0.9
Chemo only1.031 (0.433-2.444)0.9
Overall survival
TreatmentXRT1081
5FU-RT0.83 (0.411-1.681)0.6
Chemo only1.13 (0.474-2.677)0.8
TreatmentXRT1081
5FU-RT0.891 (0.428-1.856)0.8
Chemo only1.191 (0.494-2.882)0.7
Table 3 Recurrence-free survival and overall survival analysis
VariableCategories/unitsChemo alone
5FU-RT
XRT
HR (95% CI)P-value1HR (95% CI)P-value1HR (95% CI)P-value1
Recurrence-free survival
ECOG010.911.0E/N = 0/10.5
10.92 (0.115-7.422)1.01 (0.238-4.326)NE
GenderMale10.910.210.5
Female0.91 (0.244-3.419)1.58 (0.727-3.436)0.65 (0.198-2.163)
Surgical marginsPositive10.51< 0.00110.03
Negative0.51 (0.059-4.351)0.16 (0.070-0.384)0.27 (0.081-0.918)
Stage1 or 210.110.210.06
3 or 42.92 (0.724-11.773)1.86 (0.749-4.633)3.87 (0.853-17.586)
Grade of tumor1, 210.310.0910.3
32.17 (0.444-10.636)2.44 (0.836-7.099)1.94 (0.515-7.288)
Overall survival
ECOG010.810.9E/N = 0/10.4
10.78 (0.096-6.366)0.95 (0.220-4.069)NE
GenderMale11.010.28/220.7
Female1.02 (0.253-4.148)1.63 (0.740-3.598)0.78 (0.234-2.597)
Surgical marginsPositive10.0041< 0.0014/40.02
Negative0.10 (0.013-0.700)0.26 (0.113-0.603)0.25 (0.071-0.901)
Stage1 or 210.210.12/120.06
3 or 42.59 (0.646-10.412)2.08 (0.778-5.557)3.80 (0.829-17.397)
Grade of tumor1, 210.410.063/120.4
32.04 (0.418-9.944)3.04 (0.903-10.239)1.83 (0.482-6.980)
Table 4 Subgroup analysis for overall and recurrence-free survival
SubgroupVariableCategories/unitsnOverall survival
Recurrence-free survival
HR (95% CI)P-valueHR (95% CI)P-value
Surgical margins = positiveTreatmentChemo alone2111
5FU-RT/XRT0.47 (0.100–2.191)0.31.58 (0.206-12.154)0.7
Stage T3/4TreatmentChemo alone6611
5FU-RT/XRT0.65 (0.294–1.454)0.30.78 (0.352-1.709)0.5
Node positiveTreatmentChemo alone9411
5FU-RT/XRT0.92 (0.404–2.081)0.81.10 (0.489-2.482)0.8