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The cognitive development (Stanford-Binet IQ) of children (N = 59) originally hospitalized for nonorganic failure-to-thrive (NOFT) at an average age of 4.9 months was assessed at 36 months of age. Cognitive development declined from a Bayley MDI of 99.6 at study intake to 85.4 at age 36 months. Type of early outreach intervention did not effect cognitive development. Using a multivariate predictive model, environmental characteristics (family income and maternal educational level) and characteristics of NOFT (age of onset) accounted for significant amounts of variance (22 and 10%, respectively) in intellectual outcomes. Predictors also successfully identified 74% of individual children with average vs. below average cognitive development. These findings underscore the importance of individual difference variables in the prediction of psychological outcomes in NOFT
Drotar et al. (Fri,) studied this question.