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Risk factors for severe bronchiolitis in Colombia

Jefferson A Buendía1, Diana Guerrero Patiño2

  • 1Professor, Department of Pharmacology and Toxicology, School of Medicine, Research Group in Pharmacology and Toxicology (INFARTO), Universidad de Antioquia, Medellín, Colombia.

Tropical Doctor
|March 23, 2021
PubMed

Insights

Severe bronchiolitis in infants incurs high medical costs, particularly in tropical middle-income nations. This study identified respiratory syncytial virus and cigarette smoke exposure as key risk factors for severe infant bronchiolitis.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Public Health

Background:

  • Severe bronchiolitis in infants presents a significant economic challenge, especially in tropical, middle-income countries.
  • Identifying risk factors is crucial for developing targeted prevention and intervention strategies.

Purpose of the Study:

  • To investigate the risk factors associated with severe bronchiolitis in infants admitted to Rionegro, Colombia.
  • To inform public health initiatives and reduce the economic burden of infant bronchiolitis.

Main Methods:

  • Retrospective cohort study design.
  • Inclusion of infants under two years old admitted with bronchiolitis.
  • Log-binomial regression analysis to estimate prevalence ratios.

Main Results:

  • A total of 417 infants were included; 72.12% (300) had severe bronchiolitis.
  • Respiratory syncytial virus (RSV) infection was identified as an independent predictor.
  • Current exposure to cigarette smoke was also a significant independent predictor of severe bronchiolitis.

Conclusions:

  • RSV infection and environmental tobacco smoke exposure are critical risk factors for severe infant bronchiolitis.
  • These findings highlight the need for enhanced RSV prevention and public health campaigns against smoking in households with infants.

Keywords:
Bronchiolitisrespiratory syncytial virussmoking

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