Fig. 1

Alpha-thalassaemia association with asexual parasites (top row, a–c) and gametocytaemia (bottom row, d–f) among the groups. Three different models were used in a logistic regression analysis correcting for age. P value < 0.05 is significant. Plots represent additive model (a and d), recessive model (b and e) and dominant model (c and f) respectively