Question: is this a 2) strong advice, 1) weak advice 0) no advice?

This study showed that surgical treatment for liver metastasis was an independent prognostic factor for CRC patients with liver metastasis (HR = 0.212; 95% CI = 0.056–0.808; P = 0.023) as patients who underwent resection for primary tumor together with surgical treatment for metastasis had a better survival than other hepatic metastatic patients (3 year OS, 70.8%, 43.8%, and 4.5%; P < 0.001; Table 2; Figure 3). 
user
This is no advice
assistant