Efficacy of Primary Tumor Resection in Metastatic Colorectal Cancer

29 August 2020: Database Analysis

Yong Huang ^1BCEF* , Kuanxue Ge ^2BCD* , Guangshun Fu ^1F , Junfeng Chu ^3AB* , Wei Wei ^1AE*

DOI: 10.12659/MSM.923501

Med Sci Monit 2020; 26:e923501

Table 2 The results of multivariate Cox regression analyses of CSS in the whole cohort.

Variable	Reference	Characteristic	Cancer-specific survival
Variable	Reference	Characteristic	HR (95% CI)	SE	P value
Age at diagnosis		≥65	1.160 (1.134–1.186)	0.011
Tumor location	Colon	Rectum	0.808 (0.788–1.829)	0.013
Surgery of the primary tumor	No	Yes	0.403 (0.389–0.417)	0.017
T stage	T1	T2	0.686 (0.627–0.750)	0.046
		T3	0.908 (0.868–0.951)	0.023
		T4	1.163 (1.112–1.217)	0.023
		Unknown	1.105 (1.059–1.153)	0.022
N stage	N0	N1	1.245 (1.208–1.283)	0.015
		N2	1.741 (1.684–1.800)	0.017
		Unknown	1.152 (1.112–1.194)	0.018
Race	White	Black	1.138 (1.104–1.172)	0.015
		Other	0.954 (0.917–0.991)	0.020	0.016
Gender	Male	Female	1.015 (0.993–1.037)	0.011	0.184
Year of diagnosis	2004	2005	1.021 (0.974–1.070)	0.024	0.385
		2006	0.980 (0.935–1.027)	0.024	0.391
		2007	0.982 (0.937–1.030)	0.024	0.461
		2008	0.946 (0.903–0.992)	0.024	0.022
		2009	0.887 (0.846–0.930)	0.024
		2010	0.893 (0.851–0.936)	0.024
		2011	0.954 (0.910–1.000)	0.024	0.050
		2012	0.867 (0.827–0.910)	0.024
		2013	0.869 (0.828–0.913)	0.025
Chemotherapy	No	Yes	0.488 (0.477–0.500)	0.012