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Percentage of Free T4 and Free T3 values above the upper limit of reference range using different assay methods.
| Assay method | |||||||
|---|---|---|---|---|---|---|---|
| Delfia | Architect | Access | Centaur | Elecsys | Vitros | Lumipulse | |
| Free T4 (%) | 46 | 43 | 100 | 84 | 92 | 0 | 92 |
| Free T3 (%) | 14 | 14 | – | 30 | 19 | 0 | 11 |
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