Retrospective Study
Copyright ©The Author(s) 2024.
World J Gastrointest Oncol. Sep 15, 2024; 16(9): 3865-3874
Published online Sep 15, 2024. doi: 10.4251/wjgo.v16.i9.3865
Table 1 Characteristics of patients with peritoneal metastases of colorectal cancer
Variables
Number of patients
Age (years), n (%)
    ≥ 6064 (48.2)
    < 6069 (51.8)
Sex, n (%)
    Male89 (66.9)
    Female66 (33.1)
T category, n (%)
    T0-356 (42.2)
    T477 (57.8)
N category, n (%)
    N0-172 (55.6)
    N259 (44.4)
Location of tumor, n (%)
    Right side of the colon56 (42.2)
    Left side of the colon77 (57.8)
BMI (kg/m2), n (%)
    ≥ 18.524 (18.1)
    < 18.5109 (81.9)
PCI, n (%)
    ≥ 2051 (38.3)
    < 2082 (61.6)
Histology, n (%)
    Adenocarcinoma105 (78.9)
    Mucinous adenocarcinoma and signet-ring cell carcinoma28 (21.1)
CRS, n (%)
    CC 0/157 (42.8)
    CC 276 (57.2)
HIPEC, n (%)
    Yes35 (26.4)
    No98 (73.6)
NLR, n (%)
    ≥ 3.154 (40.6)
    < 3.179 (59.4)
Hb, n (%)
    Normal94 (70.6)
    Low39 (29.4)
Albumin (g/L), n (%)
    ≥ 3599 (74.5)
    < 3534 (25.5)
Table 2 Summary of demographics for patients treated with cytoreductive surgery according to the neutrophil-to-lymphocyte ratio/hemoglobin status
variables
NLR ≥ 3.1, n = 54
NLR < 3.1, n = 79
P value
Hb (normal), n = 94
Hb (low), n = 39
P value
Age (years), n (%)0.5310.017
    ≥ 6031 (57.4)41 (51.8)39 (41.5)25 (64.1)
    < 6023 (42.6)38 (48.2)55 (58.5)14 (35.9)
Sex, n (%)0.4230.097
    Male34 (62.9)55 (69.6)67 (71.2)22 (56.4)
    Female20 (37.1)24 (30.4)27 (28.7)17 (43.6)
T category, n (%)0.1770.187
    T0-324 (44.4)26 (32.9)43 (45.7)13 (33.3)
    T430 (55.6)53 (67.1)51 (54.2)26 (66.7)
N category, n (%)0.7100.029
    N0-129 (53.7)45 (56.9)58 (61.7)16 (41.1)
    N225 (46.3)34 (43.1)36 (38.2)23 (58.9)
CRS, n (%)0.0140.001
    CC 0/130 (55.6)27 (34.1)49 (52.1)8 (20.5)
    CC 224 (44.4)52 (65.9)45 (47.9)31 (79.5)
HIPEC, n (%)0.4730.065
    Yes16 (29.6)19 (24.1)29 (30.8)6 (15.3)
    No38 (70.4)60 (75.9)65 (69.2)33 (84.7)
Albumin (g/L), n (%)0.019< 0.001
    ≥ 3546 (85.1)53 (67.1)78 (82.9)21 (53.9)
    < 358 (14.8)26 (32.9)16 (17.1)18 (46.1)
BMI (kg/m2), n (%)0.9070.985
    ≥ 18.544 (81.5)65 (82.3)77 (82.0)32 (82.1)
    < 18.510 (18.5)14 (17.7)17 (18.0)7 (17.9)
Location of tumor, n (%)0.3200.319
    Right side of the colon16 (29.6)30 (37.9)35 (37.2)11 (28.2)
    Left side of the colon38 (70.4)49 (62.1)59 (62.8)28 (71.8)
PCI, n (%)0.5350.708
    ≥ 2019 (35.1)32 (40.5)37 (39.3)14 (35.8)
    < 2035 (64.8)47 (59.5)57 (60.7)25 (64.2)
Histology, n (%)0.3050.572
    Adenocarcinoma45 (83.3)60 (75.9)73 (77.6)32 (82.1)
    Mucinous adenocarcinoma and signet-ring cell carcinoma9 (16.6)19 (24.1)21 (22.4)7 (17.9)
Table 3 Cox univariate and multivariate analyses of the 133 patients with peritoneal metastases of colorectal cancer
VariablesUnivariate analysis
Multivariate analysis
HR (95%CI)
P value
HR (95%CI)
P value
Sex (female)0.89 (0.56-1.41)0.621
Age (≤ 60)0.55 (0.35-0.84)0.0060.63 (0.39-1.01)0.050
CEA (≥ 5.0 ng/mL)0.88 (0.73-1.75)0.570
CA199 (≥ 37.0 U/mL)1.71 (1.11-2.61)0.0141. 19 (0.74-1.91)0.450
CA125 (≥ 35.0 U/mL)1.07 (0.69-1.65)0.769
BMI (< 18.5 kg/m2)1.22 (0.88-1.62)0.356
Location (right side)0.94 (0.64-1.38)0.756
NLR (≥ 3.1)2.02 (1.28-3.19)0.0021.81 (1.13-2.89)0.010
Hb (normal)0.47 (0.31-0.72)< 0.0010.65 (0.39-1.07)0.080
Albumin (< 35 g/L)2.11 (1.37-3.51)< 0.0011.25 (0.72-2.17)0.420
Category (T4)1.04 (0.68-1.59)0.854
Category (N2)1.02 (0.79-1.21)0.857
Histology (mucinous adenocarcinoma and signet-ring cell carcinoma)1.46 (0.94-2.27)0.090
PCI (≥ 20)1.91 (1.24-2.93)0.0031.92 (1.21-3.07)0.006