Table 3. Comparison of frequency of ABO blood groups among P. falciparum-infected individuals with that of non-Plasmodium-infected individuals at Dore Bafeno Health Center, Southern Ethiopia, January 2010 [n (%)].
| Blood group | Age group | Numbers with blood type | P. falciparum infected | Non-Plasmodium-infected | χ2, P | χ2, P |
| A | ||||||
| ≤5 | 16 | 13 (81.2) | 1 (6.3) | 8.64, 0.003 | ||
| 6-15 | 21 | 16 (76.2) | 5 (23.8) | 4.76, 0.029 | ||
| >15 | 26 | 13 (50.0) | 10 (38.5) | 0.18, 0.670 | ||
| Total | 63 | 42 (66.7) | 16 (25.4) | 10.79, 0.001 | 5.99, 0.050 | |
| B | ||||||
| ≤5 | 14 | 10 (71.4) | 3 (21.4) | 2.76, 0.090 | ||
| 6-15 | 28 | 20 (71.4) | 6 (21.4) | 6.50, 0.010 | ||
| >15 | 17 | 8 (47.1) | 5 (29.4) | 0.30, 0.580 | ||
| Total | 59 | 38 (64.4) | 14 (23.7) | 10.18, 0.001 | 1.17, 0.556 | |
| AB | ||||||
| ≤5 | 1 | 1 (100.0) | 0 (0.0) | 0.00, 1.000 | ||
| 6-15 | 4 | 3 (75.0) | 1 (25.0) | 0.26, 0.610 | ||
| >15 | 4 | 3 (75.0) | 1 (25.0) | 0.26, 0.610 | ||
| Total | 9 | 7 (77.8) | 2 (22.2) | 1.78, 0.182 | 0.32, 0.852 | |
| O | ||||||
| ≤5 | 36 | 19 (52.8) | 13 (36.1) | 0.78, 0.370 | ||
| 6-15 | 59 | 26 (44.1) | 14 (23.7) | 0.02, 0.887 | ||
| >15 | 43 | 18 (41.9) | 22 (51.2) | 0.22, 0.639 | ||
| Total | 138 | 63 (45.7) | 59 (42.8) | 0.08, 0.777 | 1.48, 0.478 |