The baseline characteristics of the cases and controls in the CTF case-control population differed significantly by the following baseline characteristics: country (p = 0.001), BMI (p = 0.001), prior TB diagnosis (p = 0.01), CD4 T cell count, hypoalbuminemia, and anemia (p < 0.001 for all) (Table 1). The gene discussed is CD4; the disease is anemia.