However, the number of haemolysis symptoms (anaemia OR 4.81, CI 2.03–11.40, p value <0.001; jaundice OR 7.13, CI 3.02–16.85, p value <0.001; black urine OR 4.09, CI 1.75–9.56, p = 0.001), need for hospitalizations (OR 5.48, CI 1.27–23.64, p = 0.023) and blood transfusions (OR 3.33, CI 1.17–9.45, p = 0.024) reported in the G6PDd group was higher than in the G6PD normal group (Table 2). This evidence concerns the gene G6PD and anemia (phenotype).