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Acute lower respiratory illness in under-five children in Rio Grande, Rio Grande do Sul State, Brazil: prevalence and
Silvio O M Prietsch1, Gilberto B Fischer, Juraci A César
1Fundação Universidade Federal do Rio Grande, Rua Dr. Nascimento 396, Rio Grande, RS, Brazil. silvio@brturbo.com.br
Insights
Acute lower respiratory illness affects 23.9% of children under five in Rio Grande, Brazil. Key risk factors include crowding, low income, and maternal smoking, while maternal age over 30 is protective.
Area of Science:
- Pediatrics
- Public Health
- Epidemiology
Background:
- Acute lower respiratory illness (ALRI) is a major cause of childhood morbidity and mortality globally.
- Identifying local risk factors is crucial for targeted prevention strategies.
Purpose of the Study:
- To determine the prevalence of ALRI in children under five in Rio Grande, Brazil.
- To identify associated risk and protective factors for ALRI in this population.
Main Methods:
- Cross-sectional survey with standardized household questionnaires.
- Data collected on household, socioeconomic, parental, and child health factors.
- Prevalence ratios and logistic regression used for data analysis.
Main Results:
- Prevalence of ALRI was 23.9% among 771 children studied.
- Significant risk factors included prior respiratory infections, crowding, low maternal education/income, and maternal smoking.
- Maternal age of 30 years or older was a protective factor.
Conclusions:
- Specific socioeconomic and environmental factors are associated with ALRI in young children in Rio Grande.
- Findings can inform public health interventions to reduce childhood respiratory illness burden.
Abstract:
This study aimed to determine the prevalence of acute lower respiratory illness and to identify associated factors among children less than five years of age in the city of Rio Grande, southern Brazil. Using a cross-sectional survey, a standardized household questionnaire was applied to mothers or guardians. Information was collected on household conditions, socioeconomic status, and parental smoking. Prenatal care attendance, nutritional status, breastfeeding pattern, and use of health services for the children were also investigated. Data analysis was based on prevalence ratios and logistic regression, using a conceptual framework. Among 771 children studied, 23.9% presented acute lower respiratory illness. The main risk factors were previous episodes of acute lower respiratory infection or wheezing, crowding, maternal schooling less than five years, monthly family income less than US$ 200, four or more people per room, asthma in family members, and maternal smoking. Mothers 30 years or older were identified as a protective factor. These results can help define specific measures to reduce morbidity and mortality due to acute lower respiratory illness in this setting.
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