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Published on: August 7, 2017
Food and nutrition insecurity: a marker of vulnerability to asthma symptoms
Rita de Cássia Ribeiro-Silva1, Ana Marlúcia Oliveira-Assis1, Samuel Badaró Junqueira2
11 Departamento Ciência da Nutrição, Escola de Nutrição, Universidade Federal da Bahia, Salvador, Bahia, Brasil.
Insights
Children with moderate to severe food insecurity face a higher risk of developing asthma. This highlights the link between nutrition and respiratory health in children, underscoring the need for food security initiatives.
Area of Science:
- Pediatric Allergy and Immunology
- Public Health Nutrition
- Epidemiology
Background:
- Food and nutrition insecurity is a growing concern globally, particularly in low- and middle-income countries.
- Asthma is a common chronic respiratory disease in children, with significant public health implications.
- Understanding the interplay between nutritional status and asthma development is crucial for effective prevention and management strategies.
Purpose of the Study:
- To investigate the association between varying levels of food and nutrition insecurity and the prevalence of asthma symptoms in children.
- To identify if food insecurity acts as a risk factor for asthma development in a pediatric population in Latin America.
Main Methods:
- A cross-sectional study was conducted with 1307 children aged 6-12 years in Brazil.
- Asthma symptoms (wheezing in the past 12 months) were assessed using a validated questionnaire.
- Food insecurity was measured using the Brazilian Food Insecurity Scale, with logistic regression analyses employed to determine associations.
Main Results:
- A significant proportion of children (64.5%) experienced some degree of food and nutrition insecurity.
- Children with moderate food insecurity had 1.71 times higher odds of asthma, while those with severe food insecurity had 2.51 times higher odds.
- A clear dose-response relationship was observed between the severity of food insecurity and the likelihood of asthma.
Conclusions:
- Moderate and severe food and nutrition insecurity are significant indicators of vulnerability to childhood wheezing.
- These findings suggest that interventions promoting food security could have positive impacts on child respiratory health.
- Further research is warranted to elucidate the underlying biological and social mechanisms connecting food insecurity and asthma in children.
Objective:
To evaluate the association between food and nutrition insecurity and asthma in children from Latin America.
Design:
Cross-sectional study.
Setting:
São Francisco do Conde, Bahia, north-eastern Brazil.
Subjects:
The study included 1307 children aged 6-12 years from public elementary schools. Asthma symptoms were collected using a questionnaire that was translated and adapted from the International Study of Asthma and Allergies in Childhood, phase III. The diagnosis of asthma was determined based on reports of wheezing in the previous 12 months. The Brazilian Food Insecurity Scale was used to identify food insecurity. We also obtained demographic, socio-economic and anthropometric information for each participant. We used multivariate logistic regression analyses to assess the associations of interest.
Results:
Of the children surveyed, 10·4% had a history of wheezing and 64·5% had some degree of food and nutrition insecurity. We found a positive dose-response relationship and statistically significant associations of asthma with moderate (OR = 1·71, 95% CI 1·01, 2·89) and severe (OR = 2·51, 95% CI 1·28, 4·93) food and nutrition insecurity.
Conclusions:
The results show that moderate and severe food and nutrition insecurity are markers of vulnerability to wheezing. It is important to note that the results of studies in this field have potential implications for social policies that promote food security. Further studies to identify the mechanisms involved in the relationship between food and nutrition insecurity and asthma are needed.
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