Table 2.

KLF4 expression levels in different tissue specimens

SpecimensTotalKLF4 stainingP
Negative (%)Weak (%)Strong (%)
Normal600 (0)12 (20.0)48 (80.0)
Primary tumor8627 (31.4)47 (54.7)12 (14.0)<0.0001 *
Lymph node metastases5126 (51.0)24 (47.1)1 (2.0)<0.0001 , 0.015
  • NOTE: Pearson's two-tailed χ2 test was done with the SPSS software program to determine the statistical significance of the level of expression of KLF4 in different tissue specimens.

  • * Primary tumor versus noncancerous tissue.

  • Lymph node metastasis versus noncancerous tissue.

  • Primary tumor versus lymph node metastasis.