Table 1.
Prevalence of thyroglobulin antibodies (TgAb) and thyroid peroxidase antibodies (TPOAb) in patients with subacute thyroiditis and healthy controls measured using 4 different kits
| Kit A |
Kit B |
Kit C |
Kit D |
|||||
|---|---|---|---|---|---|---|---|---|
| TgAb [28] | TPOAb [16] | TgAb [4.1] | TPOAb [5.6] | TgAb [13.6] | TPOAb [3.2] | TgAb [12.2] | TPOAb [5.1] | |
| Subacute thyroiditis | 37.5 | 25.0 | 60.0a | 12.5 | 45.0a | 10.0 | 67.5a | 15.0 |
| (n=40) | (25.0) | (12.5) | (50.0a) | (2.5) | (40.0a) | (5.0) | (55.0a) | (2.5) |
| Controls | 7.0 | 4.0 | 7.0b | 1.0 | 6.0 | 1.0 | 11.0b | 2.0 |
| (n=100) | (7.0) | (4.0) | (7.0b) | (1.0) | (6.0) | (1.0) | (10.0b) | (1.0) |
Data indicate percent positive reaction. The prevalence of TgAb was significantly different from that of TPOAb at
a
p < 0.001 and
b
p < 0.05. The cutoff value for each assay kit is presented in brackets [IU/mL]. The prevalence of a positive reaction for TgAb or TPOAb alone is presented in parentheses.