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Effect of Reducing Indoor Air Pollution on Women's Respiratory Symptoms and Lung Function: The RESPIRE Randomized Trial, Guatemala

Authors :
Rolv T. Lie
Esperanza Diaz
John P. McCracken
Tone Smith-Sivertsen
Byron Arana
Daniel Pope
Anaite Diaz
Nigel Bruce
Per Bakke
Kirk R. Smith
Source :
Am J Epidemiol
Publication Year :
2009
Publisher :
Oxford University Press (OUP), 2009.

Abstract

Exposure to household wood smoke from cooking is a risk factor for chronic obstructive lung disease among women in developing countries. The Randomized Exposure Study of Pollution Indoors and Respiratory Effects (RESPIRE) is a randomized intervention trial evaluating the respiratory health effects of reducing indoor air pollution from open cooking fires. A total of 504 rural Mayan women in highland Guatemala aged 15–50 years, all using traditional indoor open fires, were randomized to either receive a chimney woodstove (plancha) or continue using the open fire. Assessments of chronic respiratory symptoms and lung function and individual measurements of carbon monoxide exposure were performed at baseline and every 6 months up to 18 months. Use of a plancha significantly reduced carbon monoxide exposure by 61.6%. For all respiratory symptoms, reductions in risk were observed in the plancha group during follow-up; the reduction was statistically significant for wheeze (relative risk = 0.42, 95% confidence interval: 0.25, 0.70). The number of respiratory symptoms reported by the women at each follow-up point was also significantly reduced by the plancha (odds ratio = 0.7, 95% confidence interval: 0.50, 0.97). However, no significant effects on lung function were found after 12–18 months. Reducing indoor air pollution from household biomass burning may relieve symptoms consistent with chronic respiratory tract irritation.

Details

ISSN :
14766256 and 00029262
Volume :
170
Database :
OpenAIRE
Journal :
American Journal of Epidemiology
Accession number :
edsair.doi.dedup.....816fa87c1fa1a1d10a5b1601429b5bde
Full Text :
https://doi.org/10.1093/aje/kwp100