. Author manuscript; available in PMC: 2019 Mar 5.

Published in final edited form as: J Perinatol. 2018 Sep 5;38(11):1490–1495. doi: 10.1038/s41372-018-0213-9

Table 3.

Association between elevated neonatal TSH values and infant birth weights accounting for gestational age at birth

	Elevated TSH^*	Normal TSH	P-value
Subclinical Hypothyroidism
			0.025
SGA (n=50)	8 /50 16.0%	42/50 84.0%
AGA (n=472)	29/472 6.1%	443/472 93.9%
LGA (n=45)	5/45 11.1%	40/45 88.9%
Subclinical Hypothyroxinemia
			0.16
SGA (n=38)	4 /38 10.5%	34/38 89.5%
AGA (n=385)	21/385 5.8%	344/385 94.3%
LGA (n=54)	6/54 11.1%	48/54 88.9%

SGA, small for gestational age (birth weight less than 10% for gestational age); AGA, appropriate for gestational age (birth weight between 10% and 90% for gestational age); LGA, large for gestational age (birth weight greater than 90% for GA);

Elevated =TSH (>34 µIU if 1st 48 hrs, >20 µIU if after 48 hrs)