a multivariate survival analysis using the cox model revealed five significant variables predictive of death from gastric cancer -- two inherent pathologic factors : ( 1 ) nonpyloric site and ( 2 ) metastases in more than three lymph nodes , and three treatment factors that could often be controlled by the surgeon : ( 3 ) microscopic positive gastric resection margin , ( 4 ) inadequate lymphadenectomy , and ( 5 ) total gastrectomy .
C0024204
lymph nodes
C0024203
lymphadenectomy