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Table 4 Univariate analysis to determine factors associated with prognosis

From: IL-6 expression predicts treatment response and outcome in squamous cell carcinoma of the esophagus

Variables P value for overall survival P value for disease-free survival
Clinical stage 0.271 0.006*
Tumor resection 0.001* 0.000*
Positive staining for IL-6 0.000* 0.000*
Positive staining for p-STAT3 0.000* 0.000*
Local-regional Recurrence 0.002* 0.000*
Distant metastasis 0.03* 0.000*
Treatment response 0.000* 0.000*