Affiliation:
1. aMaternal and Child Health Division
2. cDepartment of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
3. bNutrition and Clinical Science Division, icddr,b, Dhaka, Bangladesh
Abstract
BACKGROUND AND OBJECTIVES
Previously, in 30 Bangladeshi villages, 2 groups of children with iron-deficiency anemia (IDA) and nonanemic (NA) iron sufficiency aged 6 to 24 months participated in 2 parallel cluster randomized controlled trials of the effect of psychosocial stimulation on neurodevelopment. The intervention was composed of weekly play sessions at home for 9 months. All children with anemia received iron treatment of 6 months. The intervention improved the mental development of NA but not IDA groups. Six years after end line when the children were aged 8 to 9 years, we aimed to determine if benefits were sustained in the NA group or late-onset benefits emerged in the IDA group.
METHODS
We relocated 372 (90%) of the initial 412 children from all the clusters (villages), and assessed their IQ with the Wechsler Abbreviated Scale of Intelligence-II, motor development, and school achievement including math, spelling, and reading. Analyses were by intention-to-treat, adjusting for clustering.
RESULTS
There was a significant interaction between anemia groups (IDA/NA) and intervention on IQ. The intervention benefitted the NA group’s Full-Scale IQ (effect size, 0.43 [95% confidence interval, 0.08–0.79]) and Perceptual Reasoning Index (effect size, 0.48 [95% confidence interval, 0.08–0.89]) but did not affect the IDA group’s outcomes. No other outcomes were significant.
CONCLUSIONS
The benefits from early childhood psychosocial stimulation on the NA group’s IQ, 6 years after intervention ended, adds to the limited evidence on the sustainability of benefits in low- and middle-income countries. Reasons for lack of effect in children with anemia are unknown.
Publisher
American Academy of Pediatrics (AAP)
Subject
Pediatrics, Perinatology and Child Health
Cited by
1 articles.
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