Table 3.

Percentage of positive cells in the R-K and R-O groups

Group	Percentage of positive cells (%)
	IL-6	HIF-1α	TNF-α	NF-κB	VEGF
R-K	91.40±1.03	84.67±2.47	34.67±1.17	64.53±1.93	89.53±1.86
R-O	71.63±2.06	11.63±0.96	13.75±0.75	16.00±1.16	71.75±2.48
P-value	<0.001	<0.001	<0.001	<0.001	<0.001

R-K: recurrent patients from the group not given HBOT; R-O: recurrent patients from the group given HBOT. Data are expressed as mean±SD (R-O group, n=8; R-K group, n=15)