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Related Experiment Video

Updated: Feb 24, 2026

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Modifiable risk factors associated with bronchiolitis.

Raffaella Nenna1, Renato Cutrera2, Antonella Frassanito1

  • 1Department of Pediatrics and Infantile Neuropsychiatry, 'Sapienza' University of Rome, Italy.

Therapeutic Advances in Respiratory Disease
|August 17, 2017
PubMed
Summary
This summary is machine-generated.

Exposure to indoor pollution, such as cooking oil fumes and secondhand smoke, significantly increases the risk of acute bronchiolitis in infants. Public health initiatives should focus on reducing these environmental exposures for prevention.

Keywords:
bronchiolitispollutionrisk factors

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Area of Science:

  • Environmental Health
  • Pediatric Respiratory Diseases
  • Epidemiology

Background:

  • Acute bronchiolitis is a common respiratory infection in infants.
  • Identifying modifiable risk factors, particularly those related to pollution, is crucial for prevention.

Purpose of the Study:

  • To investigate modifiable risk factors, including pollution, associated with acute bronchiolitis in hospitalized infants.

Main Methods:

  • An observational study involving 213 infants with bronchiolitis and 213 controls.
  • Data collected via a 53-item questionnaire on social-demographics, indoor/outdoor pollution, and eating habits.
  • Multivariate logistic regression analysis used to identify independent risk factors.

Main Results:

  • Key risk factors identified include breastfeeding for ⩾3 months, presence of older siblings, ⩾4 cohabitants, and using seed oil for cooking.
  • Home renovation within 12 months and daily exposure to smoking (⩾11 cigarettes, ⩾2 smokers) were more frequent in cases.
  • Proximity to road traffic was not significantly different between cases and controls.

Conclusions:

  • Inhaling cooking oil fumes and exposure to secondhand smoke are significant risk factors for acute bronchiolitis.
  • Public health authorities can use this data to develop preventive strategies, such as educating mothers on avoiding handling infants when ill and eliminating environmental smoke exposure.