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. Author manuscript; available in PMC: 2016 Jul 14.
Published in final edited form as: J Surg Oncol. 2015 Jul 14;112(1):31–37. doi: 10.1002/jso.23940

Table 5.

Comparison of multivariate models and the change in Hazard Ratio (HR) and p value for Country

Model Variables in Model China vs. US Adjusted HR for Country 95% CI p-value Korea vs. US Adjusted HR for Country 95% CI p-value
Separate models comparing China vs. US and Korea vs. US
Nomogram based model Country + Age + Sex + Lauren + Tumor location + T-stage + Tumor size + Retrieved LNs + Positive LNs 1.8 1.4–2.3 <.0001 0.8* 0.6–1.0 0.05
Nomogram based model & additional factors Country + Age + Sex + Lauren + Tumor location + T-stage + Tumor size + Retrieved LNs + Positive LNs + Family History + BMI + Lymphadenectomy + Differentiation + Operation 1.7 1.3–2.2 <.0001 0.8* 0.6–1.0 0.09
*

Results from Strong et al. 2010.[3] The reciprocal of hazard ratio and confidence interval are reported to present US as the reference group