Table 4.
List of cut-off value, sensitivity, and specificity of thyroid function and autoantibodies in GBS and CIDP ROC analysis.
| Variable | Criterion | Specificity (%) | Sensitivity (%) |
|---|---|---|---|
| TPO-Ab | >13.7 IU/mL* | 96.15 | 63.92 |
| >18.6 IU/mL# | 97.44 | 60.82 | |
| >133 IU/mLΔ | 98.72 | 11.34 | |
| ≤0.01IU/mLΔ | 97.96 | 9.09 | |
| TG-Ab | >6.6 IU/mL* | 88.46 | 69.07 |
| >17.36 IU/mL# | 94.87 | 60.82 | |
| >261.1IU/mLΔ | 98.72 | 2.06 | |
| ≤0.46 IU/mLΔ | 98.98 | 11.69 | |
| TT4 | >89.15 nmol/L* | 55.13 | 70.10 |
| >97.45 nmol/L# | 60.26 | 60.82 | |
| >157.75nmol/LΔ | 97.44 | 6.19 | |
| ≤69.03nmol/LΔ | 98.98 | 6.49 | |
| FT4 | >12.23 pmol/L* | 48.72 | 71.13 |
| >12.71 pmol/L# | 58.97 | 60.82 | |
| >17.7pmol/LΔ | 98.72 | 4.12 | |
| ≤9.08pmol/LΔ | 97.96 | 1.30 |
*
The diagnostic cut-off value corresponding to the maximum point of the Youden index.
#
The diagnostic cut-off value corresponds to sensitivity near to 60%.
Δ
The diagnostic cut-off value corresponds to the maximal specificity.