CONTEXT:
Early childhood stimulation interventions positively impact early child development (ECD) outcomes in low- and middle-income countries. However, trials have less comprehensively evaluated the effects of such parenting programs on caregivers' skills and capacities.
OBJECTIVE:
We conducted a systematic review and meta-analysis to assess the effectiveness of stimulation interventions on improving parenting outcomes.
DATA SOURCES:
Six electronic bibliographic databases.
STUDY SELECTION:
Inclusion criteria included randomized controlled trials of stimulation interventions designed to improve ECD outcomes during the first 2 years of life that measured any maternal or parenting-related outcome after the start of the intervention.
DATA EXTRACTION:
Two independent reviewers extracted data by using a structured form.
RESULTS:
Fifteen studies representing 13 unique randomized controlled trials met the inclusion criteria. Pooled standardized mean differences (SMDs) based on random-effects models revealed medium-to-large benefits of stimulation interventions for improving the home caregiving environment (n = 10; SMD = 0.57; 95% confidence interval [CI], 0.37 to 0.77), mother-child interactions (n = 3; SMD = 0.44; 95% CI, 0.14 to 0.74), and maternal knowledge of ECD (n = 6; SMD = 0.91; 95% CI, 0.51 to 1.31). No significant difference was seen for maternal depressive symptoms (n = 9; SMD = -0.10; 95% CI, -0.23 to -0.03).
LIMITATIONS:
Limitations include heterogeneity across interventions, lack of standardized measures, and different time points of assessments across studies.
CONCLUSIONS:
Early childhood stimulation interventions improve several distinct aspects of maternal parenting. Improvements in parenting capacities may serve as key mechanisms by which these programs benefit ECD outcomes.
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