Accuracy, sensitivity, and specificity of HBc for predicting anemia at a high transfusion threshold (<9 g/dL) were greater with values of 91.1 (95% CI 88.4, 93.8), 58.3 (95% CI 45.9, 70.8), and 96.5 (95% CI 94.6, 98.3), respectively. This evidence concerns the gene KRT88P and anemia (phenotype).