Table 2.

Correlations of serum MR and CD163 levels with CEA, CA19-9, and CA72-4 concentrations in colorectal cancer patients

	Colon cancer				Rectal cancer
	MR		CD163		MR		CD163
	$r$	$P$ value	$r$	$P$ value	$r$	$P$ value	$r$	$P$ value
CEA	0.2489	0.0241	0.2903	0.0081	0.3360	0.0006	0.3198	0.0030
CA19-9	0.3325	0.0023	0.3249	0.0029	0.3211	0.0029	0.2496	0.0221
CA72-4	0.1508	0.1762	0.2663	0.0156	0.2553	0.0191	0.1602	0.1454