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Table 2 Univariate analysis of factors associated with overall survival and cancer-specific survival of M-CLM

From: Surgery improves the prognosis of colon mucinous adenocarcinoma with liver metastases: a SEER-based study

Variable OS CSS
HR(95%CI) P HR(95%CI) P
Race
 White 1 0.064 1 0.025
 Black 0.735 (0.543–0.996) 0.047 0.691 (0.506–0.944) 0.020
 Others 0.562 (0.317–0.999) 0.050 0.502 (0.273–0.924) 0.027
Age (years)
  ≤ 60 1   1  
 >60 1.128 (0.876–1.453) 0.349 1.066 (0.821–1.385) 0.629
Sex
 Female 1   1  
 Male 0.886 (0.698–1.124) 0.319 0.888 (0.693–1.139) 0.350
CEA
 Normal 1 0.429 1 0.281
 Elevated 1.195 (0.800–1.784) 0.385 1.379 (0.890–2.138) 0.151
 Unknown 1.324 (0.861–2.035) 0.202 1.456 (0.911–2.328) 0.117
Size (cm)
  ≤ 5 1 0.153 1 0.192
 >5 1.189 (0.922–1.533) 0.182 1.157 (0.888–1.508) 0.281
 Unknown 1.455 (0.964–2.197) 0.074 1.463 (0.955–2.241) 0.081
Tumor number
 Solitary 1   1  
 Multiple 1.244 (0.921–1.681) 0.155 1.073 (0.772–1.492) 0.675
Location
 Right colon 1 0.996 1 0.939
 Transverse colon 1.003 (0.675–1.492) 0.987 1.038 (0.687–1.567) 0.859
 Left colon 0.989 (0.759–1.290) 0.937 1.049 (0.797–1.380) 0.734
Differentiation
 Grade I/II 1 0.528 1 0.547
 Grade III/IV 1.000 (0.754–1.326) 0.998 1.013 (0.755–1.358) 0.933
 Unknown 1.221 (0.855–1.745) 0.271 1.229 (0.847–1.783) 0.278
pT stage
0–2 1 0.004 1 0.002
3–4 0.603 (0.392–0.929) 0.022 0.570 (0.367–0.888) 0.013
 Unknown 1.104 (0.610–1.997) 0.745 1.105 (0.602–2.028) 0.747
pN stage
N0 1 0.117 1 0.192
N+ 0.844 (0.629–1.134) 0.261 0.892 (0.652–1.219) 0.473
 Unknown 1.502 (0.787–2.867) 0.217 1.570 (0.796–3.097) 0.193
Surgery type
 No surgery 1 < 0.001 1 < 0.001
 Surgery to primary or metastatic lesion 0.506 (0.349–0.734) < 0.001 0.497 (0.337–0.735) < 0.001
 Both 0.314 (0.198–0.497) < 0.001 0.330 (0.205–0.531) < 0.001
 Others 1.080 (0.259–4.509) 0.916 1.201 (0.286–5.037) 0.802