Table 2.

Glasgow prognostic scale (GPS) in previous reports on colorectal cancer.

Year	Author	Population	Patient (n)
2007	Ishizuka et al. [58]	CRC following surgery (all stages)	315
2013	Ishizuka et al. [59]	CRC following primary resection (Stage IV)	108
2014	Choi et al. [60]	CRC following surgery (all stages)	105
2015	Shibutani et al. [22]	CRC following curative resection (Stage II–III)	254
2016	Ishizuka et al. [27]	CRC following surgery (all stages)	627
2019	Inamoto et al. [1]	CRC following curative resection (all stages)	448
2020	Lee et al. [57]	CRC following curative resection (all stages)	1590

CRC: colorectal cancer, CRLM: colorectal liver metastasis.