Table 3. Univariate and multivariate Cox regression analyses of OS for CRC patients in the TCGA database.

Variables	Univariate analysis			Multivariate analysis
	HR	95% CI	P value	HR	95% CI	P value
age	1.972	[1.225–3.174]	0.005	2.303	[1.422–3.373]	0.001
sex	0.791	[0.505–1.239]	0.306
race	1.146	[0.689–1.906]	0.600
T stage	1.599	[1.057–2.420]	0.026			0.458
N stage	1.410	[1.070–1.859]	0.015			0.641
M stage	0.966	[0.718–1.300]	0.819
TNM stage	1.850	[1.421–2.408]	<0.001	2.011	[1.535–2.635]	<0.001
Primary site	0.598	[0.296–1.206]	0.151
PHF19	1.604	[1.008–2.553]	0.046	1.603	[1.008–2.549]	0.046