Retrospective Cohort Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. Sep 14, 2017; 23(34): 6261-6272
Published online Sep 14, 2017. doi: 10.3748/wjg.v23.i34.6261
Table 1 Baseline patient characteristics based on neutrophil-lymphocyte ratio, platelet-lymphocyte ratio and systemic immune-inflammation index n (%)
CasesNLR
P valuePLR
P valueSII
P value
≤ 2.7> 2.7≤ 210> 210≤ 340> 340
Age (yr)0.0050.9040.063
≤ 60698 (50.5)480 (53.2)218 (45.3)437 (50.3)261 (50.7)233 (54.2)465 (48.8)
> 60685 (49.5)422 (46.8)263 (54.7)431 (49.7)254 (49.7)197 (45.8)488 (51.2)
Gender0.0670.4220.927
Male808 (58.4)511 (56.7)297 (61.7)500 (57.6)308 (59.8)252 (58.6)536 (58.3)
Female575 (41.6)391 (43.3)184 (38.3)368 (42.4)207 (40.2)178 (41.4)397 (41.7)
Tumor location< 0.0010.0080.060
Right-sided324 (23.4)185 (20.5)139 (28.9)183 (21.1)141 (27.4)87 (20.2)237 (24.9)
Left-sided1059 (76.6)717 (79.5)342 (71.1)685 (78.9)374 (72.3)343 (79.8)716 (75.1)
Histological type< 0.0010.020< 0.001
Well-differentiated1126 (81.4)761 (84.4)365 (75.9)723 (83.3)403 (78.3)376 (87.4)750 (78.7)
Poorly differentiated257 (18.6)141 (15.6)116 (24.1)145 (16.7)112 (21.7)54 (12.6)203 (21.3)
Tumor size< 0.001< 0.0010.003
≤ 5 cm936 (67.7)660 (73.2)276 (57.4)617 (71.1)319 (61.9)315 (73.3)621 (65.2)
> 5 cm447 (32.3)242 (26.8)205 (42.6)251 (28.9)196 (38.1)115 (26.7)332 (34.8)
T stage< 0.001< 0.001< 0.001
T167 (4.8)45 (5.0)22 (4.6)54 (4.9)13 (4.8)38 (8.8)29 (3.0)
T2256 (18.5)197 (21.8)59 (12.3)170 (19.9)86 (16.7)104 (24.2)152 (15.9)
T3748 (54.1)507 (56.2)241 (50.1)475 (54.7)273 (53.0)232 (54.0)516 (54.1)
T4312 (22.6)153 (17.0)159 (33.1)169 (19.5)143 (27.8)56 (13.0)256 (26.9)
N stage< 0.0010.021< 0.001
N0487 (35.2)353 (39.1)134 (27.9)325 (37.4)162 (31.5)196 (45.6)291 (30.5)
N1416 (30.1)277 (30.7)139 (28.9)261 (30.1)155 (30.1)121 (28.1)295 (31.0)
N2308 (22.3)188 (20.8)120 (24.9)190 (21.9)118 (22.9)77 (17.9)231 (24.2)
N3172 (12.4)84 (9.3)88 (18.3)92 (10.6)80 (15.5)36 (8.4)136 (14.3)
M stage< 0.001< 0.001< 0.001
M01115 (80.6)774 (85.8)341 (70.9)726 (83.6)389 (75.5)386 (89.8)729 (76.5)
M1268 (19.4)128 (14.2)140 (29.1)142 (16.4)126 (24.5)44 (10.2)224 (23.5)
TNM stage< 0.0010.001< 0.001
I187 (13.5)141 (15.6)46 (9.6)133 (15.3)54 (10.5)92 (21.4)95 (10.0)
II515 (37.2)368 (40.8)147 (30.6)335 (38.6)180 (35.0)171 (39.8)344 (36.1)
III413 (29.9)265 (29.4)148 (30.8)258 (29.7)155 (30.1)123 (28.6)290 (30.4)
IV268 (19.4)128 (14.2)140 (29.1)142 (16.4)126 (24.5)44 (10.2)224 (23.5)
Chemotherapy< 0.001< 0.001< 0.001
No684 (49.5)488 (54.1)196 (40.7)472 (54.4)212 (41.2)243 (56.5)441 (46.3)
Yes699 (50.5)414 (45.9)285 (59.3)396 (45.6)303 (58.8)187 (43.5)512 (53.7)
Table 2 Univariate and multivariate Cox regression analysis of the associations between clinical parameters and overall survival in patients with colorectal cancer
Univariate analysis
Multivariate analysis
χ2 valueHR95%CIP valueχ2 valueHR95%CIP value
Age22.9651.4051.223-1.614< 0.00138.1311.5611.355-1.798< 0.001
Gender0.017--0.896
Tumor location0.269--0.604
Histological type22.1781.4931.264-1.764< 0.001
Tumor size1.166--0.280
T stage71.7021.4981.364-1.645< 0.001
N stage113.9051.4321.340-1.529< 0.001
M stage239.9373.4152.923-3.989< 0.00126.3901.9511.512-2.517< 0.001
TNM stage207.2521.7851.650-1.932< 0.00122.9711.3451.191-1.518< 0.001
NLR status40.8241.5821.374-1.821< 0.001
PLR status23.6041.4161.231-1.649< 0.00112.6181.2941.123-1.492< 0.001
SII status173.3303.5292.925-4.258< 0.001141.4273.1632.616-3.824< 0.001
Chemotherapy76.9311.8941.642-2.184< 0.001
Table 3 Univariate and multivariate Cox regression analysis of the associations between clinical parameters and PFS in patients with colorectal cancer
Univariate analysis
Multivariate analysis
χ2 valueHR95%CIP valueχ2 valueHR95%CIP value
Age21.7741.3731.202-1.569< 0.00134.4791.4991.310-1.716< 0.001
Gender0.144--0.705
Tumor location0.509--0.476
Histological type20.0911.4471.231-1.701< 0.001
Tumor size1.095--0.295
T stage59.8471.4191.299-1.550< 0.001
N stage86.7181.3541.270-1.443< 0.001
M stage221.9263.1722.725-3.692< 0.00131.5802.0241.583-2.589< 0.001
TNM stage179.5891.6731.552-1.804< 0.00115.4141.2551.121-1.406< 0.001
NLR status36.4411.5181.325-1.738< 0.001
PLR status20.8261.3691.196-1.567< 0.001
SII status159.1232.9882.521-3.542< 0.001129.4952.7172.287-3.228< 0.001
Chemotherapy61.1591.7161.499-1.965< 0.001