Table 2.

Biochemical factors investigated and categorizing

Biochemical factor	category		No.	%
Baseline NTx	normal	≤ 18 nM BCE	30	50
	abnormal	> 18 nM BCE	30	50
Baseline VEGF	normal	≤ 500 pg/ml	30	50
	abnormal	> 500 pg/ml	30	50
Baseline CEA	normal	≤ 10 μg/L	42	70
	abnormal	> 10 μg/L	18	30
Baseline CA 15-3	normal	≤ 51 U/mL	21	35
	abnormal	> 51 U/mL	39	65
NTx (days 90)	normal	≤ 18 nM BCE	34	56.7
	abnormal	> 18 nM BCE	16	43.3
VEGF (days 90)	normal	≤ 500 pg/ml	29	48.3
	abnormal	> 500 pg/ml	21	42.7