Table 4

Cox proportional hazard model for survival status
Univariate Multivariate
Age (y) 0.99 (0.95-1.03) 0.99 (0.96-1.04)
Lymph node ratio 1.08 (1.03-1.13)* -
Gender
 Female Reference Reference
 Male 2.49 (0.69-9.06) 1.16 (0.28-4.81)
Location of tumor
 Colon Reference -
 Rectum 1.06 (0.36-3.16) -
Depth of invasion
 T1/T2 Reference Reference
 T3 2.15 (0.46-10.12) 3.9 (0.62-24.42)
 T4 0.70 (0.12-4.17) 0.76 (0.11-5.36)
Stage
 I Reference -
 II 0.81 (0.08-7.75) -
 III 3.67 (0.47-29.00) -
Tumor grade
 I Reference -
 II 0.93 (0.12-7.31) -
 III 0.81 (0.07-9.03) -
Upstage
 N0(i+) 10.28 (1.44-73.34)* 20.32 (2.09-197.98)*
 N0 Reference Reference
 N+ 7.93 (1.71-36.83)* 10.06 (2.04-49.58)*
HE examination
 Negative Reference -
 Positive 4.82 (1.48-15.70)* -
SLN examination
 Negative Reference -
 Positive 1.50 (0.33-6.84) -

HE, hematoxylin-eosin; SLN, sentinel lymph node.

Dash denotes variables were not included in the final model.

* Indicates p < 0.05.

Ratio values were multiplied by 100.

Wang et al.

Wang et al. Diagnostic Pathology 2012 7:71   doi:10.1186/1746-1596-7-71

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