Table 4. Sensitivity, specificity, positive predictive value, and negative predictive value of different neoTSH cutoff values.

neoTSH (mIU/L)	Sensitivity (CI * )	Specificity (CI * )	PPV (CI * )	NPV (CI * )
9.05	0.97 (0.95-0.98)	0.11 (0.07-0.15)	–	–
10	0.88 (0.85-0.91)	0.49 (0.43-0.55)	0.73 (0.69-0.76)	0.73 (0.67-0.79)
12	0.73 (0.68-0.77)	0.85 (0.81-0.89)	0.88 (0.85-0.91)	0.67 (0.62-0.72)
15	0.64 (0.60-0.69)	0.91 (0.88-0.95)	0.92 (0.89-0.95)	0.62 (0.58-0.67)
20	0.56 (0.52-0.61)	0.98 (0.96-0.99)	0.98 (0.96-0.99)	0.59 (0.55-0.63)
40	0.45 (0.40-0.49)	1.00 (1.00-1.00)	1.00 (1.00-1.00)	0.54 (0.49-0.58)

^*CI: 95% confidence interval; PPV: positive predictive value; NPV: negative predictive value.