Early and significant correlations between the Bayley Scales of Infant Development and the Stanford-Binet Intelligence Scale (S-B) were noted in a cohort of premature infants (N=215; BW: 1601.3 +/- 707 gms; GA: 31.3 +/- 4 wks) evaluated periodically after hospital discharge. Observers blinded to the clinical status administered the Mental Development Index (MDI) of the Bayley Scales at corrected ages of 6 +/- 1mo (MDI-1;n=144), 12 +/- 2mo (MDI-2;n=63), 14 +/- 4mo (MDI- 3;n=176), and 23 +/- 3mo (MDI-4;n=161). The S-B was administered at 3.8 +/-.7 years. Significant correlations (*P<0.05;**P<0.01; ***P<0.001; ****P<0.0001) between the tests are noted below. From 12 months on, the MDI is increasingly predictive, reinforcing its role as an early diagnostic and therapeutic resource for physicians and families. Table

Table 1 No caption available.
Full size table