Table 3.

Association of the ABO and Rh blood group phenotypes with T2DM at FHCRH, Bahir Dar, Northwest Ethiopia, 2019 (n = 424).

Study group	Non-A	A	COR (95% CI)	P value
Control	144 (67.9%)	68 (32.1%)	1
DM	153 (72.2%)	59(27.8%	0.817 (0.538-1.24)	0.34
	Non-B	B
Control	172 (81.1%)	40 (18.9%)	1
DM	142 (67.0%)	70 (33.0%)	2.12 (1.33-3.32)	0.001
	Non-O	O
Control	115 (54.2%)	97 (45.8%)	1
DM	138 (65.1%)	74 (34.9%)	0.636 (0.43-0.94)	0.023
	Non-AB	AB
Control	205 (96.7%)	7 (3.3%)	1
DM	203 (95.8%)	9 (4.2%)	1.298 (0.474-3.55)	0.611
	Rh+	Rh-
Control	195 (50.5%)	17 (44.7%)	1
DM	191 (49.5%)	21 (55.3%)	1.261 (0.645-2.464)	.497
	Non-B+	B+
Control	176 (83%)	36 (17%)	1
DM	149 (70.3%)	63 (29.7%)	2.067 (1.300-3.288)	0.002
	Non-O+	O+
Control	121 (57.1%)	91 (42.9%)	1
DM	145 (63.4%)	67 (36.6%)	0.614 (0.413-0.914)	0.016

Note: COR: crude odds ratio; DM: diabetes mellitus.