Table 2. Correlation coefficients among age, length of survival (days) and particular clinical parameters.

		MVD/CD105	CD44	Karnofsky score	Age	Survival (days)	Sex
MVD/CD105	Correlation coefficient	1.000	0.234	0.120	-0.036	0.072	0.022
	p		0.085	0.383	0.793	0.602	0.846
	n	55	55	55	55	55	55
CD44	Correlation coefficient	0.234	1.000	-0.091	0.022	-0.306	0.241
	p	0.085		0.508	0.874	0.023	0.039
	n	55	55	55	55	55	55
Karnofsky score	Correlation coefficient	0.120	-0.091	1.000	-0.242	0.318	-0.093
	p	0.383	0.508		0.075	0.018	0.437
	n	55	55	55	55	55	55
Age	Correlation coefficient	-0.036	0.022	-0.242	1.000	-0.189	0.142
	p	0.793	0.874	0.075		0.167	0.212
	n	55	55	55	55	55	55
Survival (days)	Correlation coefficient	0.072	-0.306	0.318	-0.189	1.000	0.087
	p	0.602	0.023	0.018	0.167		0.438
	n	55	55	55	55	55	55
Sex*	Correlation coefficient	0.022	0.241	-0.093	0.142	0.087	1.000
	p	0.846	0.039	0.437	0.212	0.438	.
	n	55	55	55	55	55	55

*Kendall’s tau_b; MVD = microvascular density; figures in bold are statistically significant