Pneumonia, Respiratory Tract Infections
Conditions
Brief summary
The purpose of this study was to determine whether reduced exposure to indoor air pollution would reduce ALRI incidence in children \<18 months of age. Households were randomized to receive a chimney stove (intervention group) or continue using an open fire for cooking and heating (control group).
Detailed description
Acute lower respiratory infections (ALRI) are the chief killer of children. Most cases are pneumonia and the majority occur among poor children under five years in developing countries. Poverty might be said to be the primary cause, which manifests as malnutrition, including micro-nutrient deficiencies, and lack of access to medical care. Another attribute of poverty is household indoor air pollution (HAP) from use of unprocessed solid fuels such as biomass (wood, animal dung and crop wastes) and coal in simple stoves. A meta-analysis of published observational studies found that young children exposed to smoke from household solid fuel use had a rate of ALRI twice that of children not exposed or where clean fuels were used. Recent studies have shown similar ALRI risks associated with short-term air pollution measurements and other indicators of exposure.
Interventions
DEVICEPlancha
locally developed chimney stove
Sponsors
World Health Organization
Universidad del Valle, Guatemala
University of Liverpool
University of California, Berkeley
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
No minimum to 18 Months
Healthy volunteers
Yes
Inclusion criteria
Households were invited to participate in the study if they met the following inclusion criteria: * Used only an open fire for cooking and heating * Had a pregnant woman or child \< 4 months residing in the home * Identified as Mam (the regional ethnic group), and had * Minimal summer migration (less than 12 weeks per year)
Exclusion criteria
Households were excluded from participating if: * The household was already using a chimney stove for cooking * There was no child \<4 months of age or a pregnant woman residing in the home * Seasonal migration required the family to move to another region for more than 12 weeks of the year
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome measure was physician-diagnosed pneumonia in children | Through 18 months of age |
Secondary
| Measure | Time frame |
|---|---|
| Severe (hypoxaemic) and RSV pneumonia | Through 18 months of age |
Countries
Guatemala
Outcome results
None listed