Supplementary Table 1.

Details of surgery and local treatment of metastatic sites

Characteristics	Number
Details of surgery done for primary site (n=24)
Anterior resection	15
Abdominoperineal resection	7
Intersphincteric resection	1
Posterior exenteration	1
Details of local treatment for metastatic sites (n=24)
Treatment of metastatic sites
Liver metastasectomy	8
RFA of liver	6
Liver plus lung metastatectomy	1
RFA of lung	1
Not addressed due to CR	4
Paraaortic lymph node dissection	3
Cytoreduction plus HIPEC	1

RFA=Radiofrequency ablation, HIPEC=Hyperthermic intraperitoneal chemotherapy, CR=Disease control rate