Fig. 1: Correlation between the visuo-motor maturation index and the IQ score at 8 and 9 years of age.
From: Congenital hypothyroidism and associated visual-motor and intellectual development
There is a positive correlation, especially at age 9, for the performance scale in the athyrosis group, for which the r value increased from 0.42 at age 8 to 0.70 at age 9.
