|Risks of death for metastatic cancers compared to CUP (cancer of unknown primary) patients diagnosed with these metastases|
|Primary site||N||HR||95% CI|
|All known primaries||6745||0.69||0.66||0.72|
Patients were diagnosed and died between 2002 and 2008. Only patients with one primary cancer and a positive metastasis status were considered.
Riihimäki et al.
Riihimäki et al. BMC Cancer 2013 13:36 doi:10.1186/1471-2407-13-36