Serum thyroglobulin (Tg) concentration in healthy subjects: absence of age- and sex-related differences

Serum concentrations of thyroglobulin in healthy subjects were measured by a solid-phase immunoradiometric assay. The mean concentration of serum thyroglobulin in 53 healthy males was 5.0 ng/ml (1.0-25.9 ng/ml) and that of 57 healthy females was 5.2 ng/ml (1.0-27.7 ng/ml). Neither sex-related nor age-related change in the serum thyroglobulin level was observed.