Our results show that in thyroid antibody-negative adults with CKD—even advanced CKD, i.e., stages 4 and 5—albuminuria even in the nephrotic range (>3 mg/g creatinine) reveals no significant association with serum T4, fT4, T3, fT3, TSH, or TBG concentrations. The gene discussed is CD4; the disease is chronic kidney disease.