Table 4: Decline of measured Tg value by mixed TgAb in samples produced using patients’ serum.

Expected Tg concentration (ng/mL)Measured Tg concentration (ng/mL)
under various TgAb concentrations
3.5 U/mL5.2 U/mL18.8 U/mL643.0 U/mL930.0 U/mL

4.74.5 ± 0.24.5 ± 0.23.4 ± 0.62.1 ± 0.12.0 ± 0.2
18.517.6 ± 0.318.7 ± 0.411.3 ± 0.49.1 ± 0.96.7 ± 0.6
111.0102.3 ± 5.1100.5 ± 5.156.0 ± 3.445.3 ± 0.439.3 ± 2.2
246.0235.8 ± 6.2234.8 ± 4.2121.1 ± 1.999.4 ± 12.285.9 ± 5.2

Values are expressed as mean ± SD.