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Growth faltering in childhood related to diarrhea: a longitudinal community based study
A M O Assis1, M L Barreto, L M P Santos
1School of Nutrition, Federal University of Bahia, Salvador, Bahia, Brazil. amos@ufba.br
Insights
Diarrhea significantly impacts preschool children's growth, leading to decreased height-for-age Z-scores. Reducing diarrhea incidence is crucial for improving child development and preventing stunting.
Area of Science:
- Pediatric Nutrition
- Global Health
- Child Development
Background:
- Childhood growth is influenced by various health factors.
- Diarrhea and acute lower respiratory tract infections (ALRI) are common childhood illnesses.
- Understanding their impact on growth is vital for public health interventions.
Purpose of the Study:
- To evaluate the association between diarrhea and ALRI and the growth of preschool children.
- To determine the impact of illness duration on anthropometric measurements.
Main Methods:
- A 12-month longitudinal community-based study in Northeast Brazil.
- Follow-up of 487 children aged 6-48 months with thrice-weekly morbidity data collection.
- Generalized estimating equation analysis of weight-for-age and height-for-age Z-scores.
Main Results:
- No association found between sick days and weight-for-age Z-scores.
- Seven or more days of diarrhea correlated with decreased height-for-age Z-scores (beta=-0.0472; P=0.016).
- ALRI showed no significant association with height-for-age Z-scores.
Conclusions:
- Diarrhea burden is a significant determinant of poor growth in children under 5.
- Interventions targeting diarrhea risk factors are essential for promoting child growth.
- Public health strategies should prioritize reducing diarrhea to ensure adequate child development.
Objective:
This study aimed to evaluate the association of diarrhea and acute lower respiratory tract infections (ALRI) with growth of preschool children.
Design:
A longitudinal community-based study over a 12-month period. Children were followed up with thrice-weekly household visits for collection of morbidity data. Every 4 months (round) clinical and anthropometric examinations were performed. At baseline a questionnaire was used to collect socioeconomic family data and environmental household variables. Generalized estimating equation was used in the statistical analysis. The variations in weight-for-age or height-for-age Z-scores in each round were the dependent variables, while the main independent variables were the number of days with diarrhea and ALRI.
Setting:
Serrinha, located in Northeast Brazil.
Subjects:
In total, 487 children, aged 6-48 months at baseline, with 1-y complete follow-up.
Results:
The number of sick days with diarrhea or ALRI was not associated with mean changes in weight-for-age Z-scores. However, the mean of height-for-age Z-scores was found to decrease in those children with 7 or more days of diarrhea (beta=-0.0472; P=0.016) but not with 1 or more days of ALRI (beta=0.0022; P=0.406) in all rounds of the follow-up period.
Conclusion:
Results of the study reinforce the concept of diarrhea burden as a major determinant of poor growth in children under 5 y of age. Actions targeted to decrease the risk factors for the occurrence of diarrhea may represent an important component of interventions aimed to ensure satisfactory child growth.
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