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Abstract Examines the prevalence, contributions, and cumulative effects of 13 biological, economic, maternal, family-structural, and parenting-belief risk factors in poor and nonpoor families separately on low-birthweight premature children's 36-month ZQ scores and behavior problems (N = 704). Children were part of the Infant Health and Development Program (ZHDP), a multisite, randomized clinical trial providing early pediatric follow-up and educational and family support services. Risk factors occurred more frequently in poor families than in nonpoor families. Different sets of risk factors were associated with children's ZQ scores and behavior problem scores. As the number of risk factors increased, child ZQ decreased. Behavior problems did not change as a function of risk factors. Early intervention had a beneficial effect on ZQ scores regardless of the number of risks experienced.
Liaw et al. (Thu,) studied this question.