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Published on: July 29, 2020
Determinants of growth retardation in Southern Brazil
Denise Aerts1, Maria de Lourdes Drachler, Elsa Regina Justo Giugliani
1Programa de Pós-graduação em Saúde Coletiva, Universidade Luterana do Brasil, Canoas, Brazil. daerts@via-rs.net
Insights
Low family income, maternal illiteracy, and poor housing significantly increase stunting risk in Brazilian children under five. Early life factors like low birth weight and birth spacing also play crucial roles in child growth retardation.
Area of Science:
- Public Health
- Pediatrics
- Epidemiology
Background:
- Child growth retardation, specifically stunting, is a significant public health concern globally.
- Identifying key determinants is crucial for developing effective prevention strategies.
Purpose of the Study:
- To investigate the determinants of stunting in children under five years old in Porto Alegre, Brazil.
- To estimate the odds ratios for various risk factors associated with stunting.
Main Methods:
- Cross-sectional, population-based study involving 3,389 children under five.
- Hierarchical modeling framework applied to analyze determinants of stunting (height-for-age < -2 Z-scores).
Main Results:
- Stunting prevalence was 6.8%.
- Key determinants included low per capita family income, maternal illiteracy, inadequate housing conditions, young maternal age at birth, and being an adopted child.
- Factors like birth order, short birth intervals, multiple births, low birth weight, and early childhood hospitalization were also significant risk factors.
Conclusions:
- Socioeconomic and environmental factors, alongside perinatal and early childhood health indicators, are critical determinants of stunting.
- Findings provide evidence for primary healthcare services to design targeted interventions for stunting prevention.
Abstract:
A cross-sectional population-based study of determinants of growth retardation in under-five children (3,389) in the city of Porto Alegre, Rio Grande do Sul, Brazil estimated odds ratios (OR) for stunting, defined as height-for-age < -2 zeta-scores of the NCHS standards. Hierarchical modeling based on a framework of the process of stunting was used. Stunting prevalence was 6.8%; the main determinants were per capita family income < 0.8 times the minimum wage (OR: 3.95; 95%CI: 2.10-7.42), maternal illiteracy (OR: 17.17; 95%CI: 4.43-66.54), living in a wooden or mixed-construction house (OR: 2.33; 95%CI: 1.35-4.01), inadequate housing (OR: 2.75; 95%CI: 1.70-4.43), maternal age at the child's birth < 20 years (OR: 1.73; 95%CI: 1.11-2.70), being an adopted child (OR: 3.28; 95%CI: 1.52-7.07), third-born child or greater (OR: 2.04; 95%CI: 1.15-3.62), birth interval < 24 months since previous child (OR: 1.69; 95%CI: 1.13-2.53), subsequent sibling (OR: 1.91; 95%CI: 1.16-3.13), multiple birth (OR: 2.40; 95%CI: 1.04-5.50), low birth weight (OR: 3.79; 95%CI: 2.38-6.02), and hospitalization in the first year of life (OR: 1,65; 95%CI: 1.01-2.68). The findings can be used by primary healthcare services to design specific interventions to prevent stunting.
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