Table 4.

Three-year local control for all tumors

Characteristics	n	% 3 years LC	P-value
Tumor size in cm
≤3	70	90.0	0.633
>3	6	100
BED10 in Gy
<100	18	100	0.154
≥100	58	85.9
DFI in months
≤30	35	100	0.191
>30	41	86.8
Histologic type of oligo-recurrence
Adenocarcinoma	24	79.6	0.188
SCC	9	100
Unknown	43	96.0
Primary cancer
Colorectal	15	47.6	0.001
Others	61	97.5

BED = biologically effective dose, DFI = disease-free interval, SCC = squamous cell carcinoma.