Table 7. AUC of FT3, FT4 and TSH in hypothyroidism patients by Siemens and Mindray.
| Index | System | AUC | P value | criterion | Sensitivity% | Specificity% |
|---|---|---|---|---|---|---|
| FT3 | Siemens | 0.8882 | P=0.8559>0.05 | ≤4.42 (pmol/L) | 80.70 | 89 |
| Mindray | 0.8865 | ≤3.78 (pmol/L) | 73.68 | 92 | ||
| FT4 | Siemens | 0.9676 | P=0.0723>0.05 | ≤13.77 (pmol/L) | 87.50 | 98 |
| Mindray | 0.9534 | ≤16.73 (pmol/L) | 92.86 | 87 | ||
| TSH | Siemens | 0.9998 | P=0.2397>0.05 | >4.73 (μIU/mL) | 100 | 99 |
| Mindray | 0.9981 | >5.30 (μIU/mL) | 98.23 | 99 |
AUC, area under the curve of receiver operating characteristic (ROC); FT3, free triiodothyronine; FT4, free thyroxine; TSH, thyroid stimulating hormone.