Congenital Hypothyroidism: An Audit and Study of Different Cord Blood Screening TSH Values in a Tertiary Medical Centre in Malaysia

Table 4

Comparison of different screening cut-off values.

Cord blood TSH cut-off (mIU/L)	Positive screened (recall rates); ()	True positives (confirmed CH by repeated TFT at days 3–5)	False positives	Positive predictive value	Incidence	False positive rate
>30	84 (0.32%)	11	73	13%	1:2341	0.28%
>25	163 (0.63%)	17	146	10.6%	1:1515	0.56%
>20	340 (1.3%)	17	323	5%	1:1515	1.2%