Table 2

Time of treatment initiation and levothyroxine dosing in the soy and non-soy diet groups

Soy diet group (n = 8)Non-soy diet group (n = 70)p value
Data shown as median (interquartile range).
Age at treatment initiation (days)15 (11.5–22)17 (12–23)0.05
Initial levothyroxine dose (μg/kg/day)7.4 (4.8–10.4)9.3 (5.4–11.6)0.4
One year decrease in dose (μg/kg/day)3.3 (0.3–5.9)3.0 (1.2–5.9)0.6