Randomised Exposure Study of Pollution Indoors and Respiratory Effects

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

537 participants

Study Classification

INTERVENTIONAL

Study Start Date

2002-10-31

Study Completion Date

2005-03-31

Brief Summary

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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).

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Detailed Description

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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.

Conditions

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Respiratory Tract Infections Pneumonia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Open fire

Households continuing to use an open fire for cooking and heating

Group Type NO_INTERVENTION

No interventions assigned to this group

Chimney stove

Households randomized to receive a chimney stove (plancha) for cooking and heating

Group Type EXPERIMENTAL

Plancha

Intervention Type DEVICE

locally developed chimney stove

Interventions

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Plancha

locally developed chimney stove

Intervention Type DEVICE

Eligibility Criteria

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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

Maximum Eligible Age

18 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes