In the subsequent diagnosis, 243 newborns were tested using the NBT G6PD/6PGD assay, and 200 (172 males and 28 females) of them were diagnosed with G6PD deficiency (Figure 3), for a Positive Predictive Value (PPV) of 82.30% (200/243). The gene discussed is G6PD; the disease is G6PD deficiency.