Table 1 Mean age at treatment initiation, serum concentration of free T4 (f T4), thyroid stimulating hormone (TSH) and initial dose of L-T4.

From: Congenital hypothyroidism and associated visual-motor and intellectual development

 

Treatment initiation

fT4 ng/dl

TSH mIU/ml

Doses L-T4 µg/kg/Day

N

Athyrosis

44 ± 21

0.39 ± 0.36**

75 ± 17

13.9 ± 1.3

34

Ectopia

44 ± 13

0.70 ± 0.51

70 ± 13

13.4 ± 1.3

41

Total

    

75

  1. Anova: **p = 0.002.
  2. Data are expressed as mean ± standard deviation.