Table 4.

Response to treatment, progression-free survival and overall survival according to different subgroups of analysis

	CR	PR	SD	PD	NE	PFS (mo)	OS (mo)
	N (%)	N (%)	N (%)	N (%)	N (%)	Mean ± s.d.	Mean ± s.d.
SIZE
< 6 cm	9 (90.0%)	0	0	0	1 (10.0%)	12.0 ± 9.2	15.1 ± 8.0
> 6 cm	4 (36.4%)	5 (45.4%)	1 (9.1%)	0	1 (9.1%)	4.7 ± 5.4	7.9 ± 7.9
P value			0.0483			0.0209	0.0322
HISTOLOGY
Colorectal cancer	4 (50.0%)	2 (25.0%)	0	0	2 (25.0%)	7.3 ± 12.1	12.1 ± 12.1
Breast cancer	4 (80.0%)	1 (20.0%)	0	0	0	9.8 ± 7.5	10.6 ± 6.9
Hepatocellular cancer	1 (33.3%)	2 (66.7%)	0	0	0	10.3±10.1	15.0 ± 7.2
P-value			0.3615			0.8781	0.8379
LOCATION
Distant (> 10 mm)	2 (100%)	0	0	0	0	6.5 ± 3.5	8.5 ± 0.7
Close (> 1 mm)	5 (62.5%)	1 (12.5%)	1 (12.5%)	0	1 (12.5%)	8.0 ± 7.4	10.7 ± 7.3
Adjacent (< 1 mm)	6 (54.5%)	4 (36.3%)	0	0	1 (9.2%)	8.8 ± 9.8	10.2 ± 10.5
P-value			0.6643			0.9364	0.9539

CR = comlete response; NE = no evidence, lost to follow up; OS = overall survival; PFS = progression-free survival; PR = partial response; s.d. = standard deviation; SD = stable disease