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Turning 1 Year of Age in a Low Socioeconomic Environment: A Portrait of Disadvantage.

Hurt, Hallam MD; Betancourt, Laura M. PhD
Journal of Developmental & Behavioral Pediatrics: Post Author Corrections: June 29, 2017
doi: 10.1097/DBP.0000000000000469
Original Article: PDF Only

In the United States today, 16 million children are growing up poor. Few studies report multiple environmental factors associated with poverty during the first year of life and effects on infant development.

Objectives: To evaluate maternal, home, and neighborhood environment of low and higher socioeconomic status (SES) infants from birth to 1 year and to evaluate the impact of SES and environment on infant developmental outcome at 1 year.

Methods: Low (n = 30) and higher SES (n = 30) African-American mothers and their healthy term gestation female infants were prospectively compared for environmental characteristics and infant developmental outcome. Wechsler Adult Intelligence Scale-IV (WAIS-IV); Beck Depression Inventory; Perceived Stress Scale; Parenting Stress Index-Fourth Edition (PSI-4); Social Support Scale; Home Observation Measurement of the Environment (HOME); Household Food Insecurity (HFI); Concentrated Neighborhood Disadvantage (CND). Bayley Scales of Infant Development Third Edition (BSID-III); Preschool Language Scale (PLS-5).

Results: Environmental risk was greater for low compared with higher SES: lower WAIS-IV (p < .001); higher PSI-4 total (p = .003); lower HOME total and 3 subscales (p < .002); higher HFI (p = .012); and higher CND (p = .027). Low SES infant outcomes differed from higher SES: lower BSID-III Cognitive Composite (p = .005), PLS-5 Total Language (p <= .017), and Auditory Comprehension (p <= .008). In regressions, after controlling for SES, effects of environmental factors were not found.

Conclusion: By age 1, low SES infants had been exposed to greater environmental disadvantage and already exhibited poorer developmental functioning than higher SES infants. These findings suggest that support for families and children from impoverished circumstances cannot begin too early.

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