Table 1.

ABO and Rh among patients and control

		n (%)
Blood group	Total	Colorectal carcinoma (N=102 cases)	Control group (N=180)	P
A+	90	42 (41.17)	48 (26.66)	0.00049
A−	8	6 (5.88)	2 (1.11)
B+	43	7 (6.86)	36 (20)
B−	5	3 (2.94)	2 (1.11)
AB+	26	2 (1.96)	24 (13.3)
AB−	4	2 (1.96)	2 (1.11)
O+	100	38 (37.25)	62 (34.44)
O−	6	2 (1.96)	4 (2.22)