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Risk and prognostic factors for diarrheal disease in Brazilian infants: a special case-control design application

Sandra Costa Fuchs1, Cesar Gomes Victora

  • 1Departamento de Medicina Social, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brasil. scfuchs@zaz.com.br

Cadernos De Saude Publica
|June 6, 2002
PubMed

Insights

Low birth weight, stunting, and lack of breastfeeding are key risk and prognostic factors for childhood diarrhea. These factors significantly impact both the likelihood of developing diarrhea and the severity of dehydration in young children.

Area of Science:

  • Pediatrics
  • Public Health
  • Epidemiology

Background:

  • Diarrhea remains a major cause of childhood morbidity and mortality globally.
  • Understanding risk and prognostic factors is crucial for effective prevention and management strategies.
  • Socioeconomic, environmental, and nutritional factors play a significant role in pediatric health outcomes.

Purpose of the Study:

  • To investigate the influence of demographic, socioeconomic, environmental, maternal reproductive, dietary, and nutritional variables on diarrhea risk and prognosis in children aged 0-23 months.
  • To identify risk factors for developing diarrhea complicated by dehydration.
  • To determine prognostic factors for dehydration and risk factors for mild diarrhea.

Main Methods:

  • A case-control study was conducted in Greater Metropolitan Porto Alegre involving 576 children (192 each in three groups: severe dehydration, mild diarrhea, and controls).
  • Mothers were interviewed using a standardized questionnaire to collect data on various influencing variables.
  • Hierarchical analysis with conditional logistic regression was employed to control for confounding factors.

Main Results:

  • Low birth weight, stunting, and lack of breastfeeding were identified as significant risk factors for diarrhea.
  • These factors also acted as prognostic factors, influencing the severity of dehydration.
  • The study highlights the interplay between early-life conditions and diarrhea outcomes.

Conclusions:

  • Early-life factors such as low birth weight, stunting, and inadequate breastfeeding are critical determinants of diarrhea risk and prognosis in young children.
  • A hierarchical approach is effective in identifying independent risk and prognostic factors for childhood diarrhea.
  • Interventions targeting these factors could significantly reduce the burden of childhood diarrhea and dehydration.

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