Table II.

Comparison of MVD, EA and Ki-67-positive cells in PDAC tissue and ANT.

Tissue type	MVD (no. of microvessels)	EA (µ2)	Ki-67 positive fraction (no. of MIB-1-positive nuclei)
ANT	8±4	73.12±27.88	15±6
PDAC	27±8	186.06±65.89	66±25
P-value	0.001	0.003	0.001

Values are presented as the mean ± standard deviation and statistical comparisons were performed using the Student's t-test. Results were counted in highly vascularised ‘hot spots’ at x400 magnification (0.19 mm² area; n=5). MVD, microvascular density; EA, endothelial area; ANT, adjacent normal tissue; PDAC, pancreatic ductal adenocarcinoma.