Table 2.
Influence of ABO blood group on P. falciparum malaria in children under 3 years in Vihiga County, Kenya
| Category | Prevalence (%) | SMA (n = 137) | Non-SMA (n = 437) | P- Valuea | OR | 95% CI | P-Valueb |
|---|---|---|---|---|---|---|---|
| Blood groups | SMA | ||||||
| O | 254 (42.7) | 55 (9.6) | 190 (33.1) | 0.331 | Ref | – | – |
| B | 152 (26.4) | 40 (7.0) | 112 (19.5) | 0.811 | 0.507–1.296 | 0.380 | |
| AB | 22 (3.8) | 2 (0.3) | 19 (3.3) | 2.750 | 0.621–12.173 | 0.183 | |
| A | 156 (27.1) | 40 (7.0) | 116 (20.2) | 0.839 | 0.526–1.341 | 0.464 | |
Prevalence in the blood group genotypes in population studied are presented as n (percentage, %). Data shown are number (n) and proportions (%) of study participants. Odds ratios (OR) and 95% confidence intervals (95% CI) were determined using multivariate logistic regression controlling for age and sex. SMA, severe malaria anaemia. A, blood group A. B, blood group B. AB, blood group AB. O, blood group O