International Journal of Endocrinology / 2019 / Article / Tab 2

Research Article

Assessment of Iodine Status among Pregnant Women and Neonates Using Neonatal Thyrotropin (TSH) in Mainland China after the Introduction of New Revised Universal Salt Iodisation (USI) in 2012: A Re-Emergence of Iodine Deficiency?

Table 2

Biochemical results of participants by maternal BMI.

Maternal BMI value
Normal (n = 475)Overweight (n = 1471)Obese (n = 1114)

Age (years)27.0 ± 3.328.2 ± 4.028.8 ± 4.3<0.001
Weight (kg)59.3 ± 4.268.2 ± 4.779.9 ± 7.7<0.001
BMI22.6 ± 1.126.0 ± 1.130.9 ± 3.9<0.001
Average length of pregnancy (gestational age at birth)38.9 ± 1.739.2 ± 1.539.1 ± 1.4<0.001
TSH (mIU/L)1.81 ± 1.481.89 ± 2.551.91 ± 2.710.771
FT3 (pmol/L)4.25 ± 0.934.48 ± 1.414.60 ± 1.80<0.001
FT4 (pmol/L)16.17 ± 3.2416.08 ± 4.1415.58 ± 6.000.013
Neonatal TSH (mIU/L)4.84 ± 1.814.85 ± 2.274.89 ± 1.840.840
 Prevalence of neonatal TSH values >5 mIU/L (%)27.629.030.50.466
Neonatal birth weight (g)3150 ± 4123342 ± 4303469 ± 470<0.001
 Prevalence of LBW (%)5.72.92.40.002
10-min APGAR score9.98 ± 0.249.99 ± 0.179.99 ± 0.230.927

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