Table 2.

Comparison of TGF-β1 expression in the supernatant of tumor tissues among the four groups (mean ± SD)

Radiotherapy
Endostar	+	−	t value	p value
+	101.14 ± 56.03	174.76 ± 55.35	2.975	< 0.05
−	226.80 ± 53.89	279.01 ± 56.02	2.110	< 0.05
t value	5.078	4.213
p value	< 0.05	< 0.05

TGF-β1 transforming growth factor-β1