Table 3.

Tests of CD44 expression as a predictor of PFS and OS after grouping patients by tumor size and nodal status

Characteristic	Median PFS (years)	p	Median OS (years)	p
Tumor size ≤2 cm		0.019		0.133
CD44 negative (n = 8)	11.0		9.4
CD44 positive (n = 10)	Not reached		Not reached
Tumor size >2 cm		0.800		0.346
CD44 negative (n = 21)	3.9		7.5
CD44 positive (n = 12)	5.3		8.4
Node negative		0.997		0.776
CD44 negative (n = 11)	17.1		14.4
CD44 positive (n = 11)	17.9		22.2
Node positive		0.069		0.021
CD44 negative (n = 18)	3.4		6.3
CD44 positive (n = 11)	10.3		15.6

Median PFS and OS values are Kaplan–Meier estimates. p values obtained using Log Rank test

Bold values indicate a statiscally significant result (i.e., p< 0.05)