Table 2.

Number of α-SMA positive, α-SMA negative, and control cases that expressed VEGF, VEGFR1, VEGFR2, and HIF1-α

	n	VEGF	VEGFR1	VEGFR2	HIF-1α
Involutional phase a	15	2/15	4/15 d	5/15 d, c	6/15 c, f
Residual phase b	17	3/17	4/17	1/17 e	2/17 f
Controls	9	2/9	0/9 d	0/9 d	0/9 c

^a α-SMA positive

^b α-SMA negative

^c statistically significant compared to the controls (p < 0.05).

^d statistical trend compared to the controls (p < 0.1).

^e statistically significant compared to Luck’s involutional and residual

phases (p < 0.05).

^f statistical trend compared to Luck’s involutional and residual

phases (p < 0.1).