Correlation of HIF-1α expression to clinicopathological features in PDAC.

The statistical data of HIF-1 and CX3CR1 expression on clinicopathological features in PDAC surgical samples. P values were calculated by Spearman’s rank-correlation test;tumor size (cm): Expressed as mean, F = 7.81, P<0.01 (anova test). N0 and N1 refer to the absence and presence of regional lymph node (LN) metastasis, respectively. pTNM stage refers to the pathological tumor node metastasis (pTNM) stage.The numbers of samples vary because clinical data were incomplete in some cases (i: For the cases that lymph node metastasis was known, ii: For the cases that pathological tumor node metastasis stage was known, iii: For the cases that CX3CR1 was known).