Cost effectiveness of a latrine revision programme in Kabul, Afghanistan

INTRODUCTION: We assessed a household latrine revision intervention implemented in Kabul, Afghanistan for evidence of a reduction in diarrhoeal disease. METHODS: A case-control design involving 1238 cases and 625 controls was used. Logistic regression modelling was performed both for children <5...

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Main Authors: Meddings D.R., Ronald L.A., Marion S., Pinera J.F., Oppliger A.
Format: Article
Language:English
Published: The World Health Organization 2004-01-01
Series:Bulletin of the World Health Organization
Subjects:
Online Access:http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862004000400010
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author Meddings D.R.
Ronald L.A.
Marion S.
Pinera J.F.
Oppliger A.
author_facet Meddings D.R.
Ronald L.A.
Marion S.
Pinera J.F.
Oppliger A.
author_sort Meddings D.R.
collection DOAJ
description INTRODUCTION: We assessed a household latrine revision intervention implemented in Kabul, Afghanistan for evidence of a reduction in diarrhoeal disease. METHODS: A case-control design involving 1238 cases and 625 controls was used. Logistic regression modelling was performed both for children <5 years and <11 years, and the parameter estimates were later used with results from a stratified cluster sample survey. This survey used a verbal autopsy methodology to enable an estimation of the number of deaths averted over a 1-year period. A cost-effectiveness analysis using direct and indirect costs for the intervention was then conducted and the results compared with primary health care interventions identified from a Medline search. FINDINGS: Conditional logistic regression showed that patients were less likely than controls to live in households with revised latrines (odds ratio (OR) 0.57, 95% confidence interval (CI) = 0.42 - 0.77 for children <5 years, and OR 0.53, 95% = CI 0.41 - 0.67 for children <11 years). The results from the survey of cause-specific mortality by verbal autopsy enabled estimation of the number of deaths averted over a 1-year period due to the intervention; these estimations were 235 (95% CI = 109 - 360) for children <5 years and 285 (95% CI = 180 - 397) for children <11 years. Estimates of cost effectiveness ranged from approximately US$ 1800 to US$ 4100 per death averted depending on age and payer perspective. CONCLUSION: These estimates are conservative because only 1 year of effectiveness is considered, yet they compare favourably with a review of other paediatric interventions. These results are important because funding for sanitation interventions is often limited by the belief that the interventions are not cost-effective.
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spelling doaj.art-5051c25c430540128b18c12dff0e00072024-03-02T19:19:58ZengThe World Health OrganizationBulletin of the World Health Organization0042-96862004-01-01824281289Cost effectiveness of a latrine revision programme in Kabul, AfghanistanMeddings D.R.Ronald L.A.Marion S.Pinera J.F.Oppliger A.INTRODUCTION: We assessed a household latrine revision intervention implemented in Kabul, Afghanistan for evidence of a reduction in diarrhoeal disease. METHODS: A case-control design involving 1238 cases and 625 controls was used. Logistic regression modelling was performed both for children <5 years and <11 years, and the parameter estimates were later used with results from a stratified cluster sample survey. This survey used a verbal autopsy methodology to enable an estimation of the number of deaths averted over a 1-year period. A cost-effectiveness analysis using direct and indirect costs for the intervention was then conducted and the results compared with primary health care interventions identified from a Medline search. FINDINGS: Conditional logistic regression showed that patients were less likely than controls to live in households with revised latrines (odds ratio (OR) 0.57, 95% confidence interval (CI) = 0.42 - 0.77 for children <5 years, and OR 0.53, 95% = CI 0.41 - 0.67 for children <11 years). The results from the survey of cause-specific mortality by verbal autopsy enabled estimation of the number of deaths averted over a 1-year period due to the intervention; these estimations were 235 (95% CI = 109 - 360) for children <5 years and 285 (95% CI = 180 - 397) for children <11 years. Estimates of cost effectiveness ranged from approximately US$ 1800 to US$ 4100 per death averted depending on age and payer perspective. CONCLUSION: These estimates are conservative because only 1 year of effectiveness is considered, yet they compare favourably with a review of other paediatric interventions. These results are important because funding for sanitation interventions is often limited by the belief that the interventions are not cost-effective.http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862004000400010Toilet facilities/economicsDiarrhea/mortalityDiarrhea/prevention and controlInfant mortalityPrimary health careRed CrossCost-benefit analysisCase-control studiesComparative studyAfghanistan
spellingShingle Meddings D.R.
Ronald L.A.
Marion S.
Pinera J.F.
Oppliger A.
Cost effectiveness of a latrine revision programme in Kabul, Afghanistan
Bulletin of the World Health Organization
Toilet facilities/economics
Diarrhea/mortality
Diarrhea/prevention and control
Infant mortality
Primary health care
Red Cross
Cost-benefit analysis
Case-control studies
Comparative study
Afghanistan
title Cost effectiveness of a latrine revision programme in Kabul, Afghanistan
title_full Cost effectiveness of a latrine revision programme in Kabul, Afghanistan
title_fullStr Cost effectiveness of a latrine revision programme in Kabul, Afghanistan
title_full_unstemmed Cost effectiveness of a latrine revision programme in Kabul, Afghanistan
title_short Cost effectiveness of a latrine revision programme in Kabul, Afghanistan
title_sort cost effectiveness of a latrine revision programme in kabul afghanistan
topic Toilet facilities/economics
Diarrhea/mortality
Diarrhea/prevention and control
Infant mortality
Primary health care
Red Cross
Cost-benefit analysis
Case-control studies
Comparative study
Afghanistan
url http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862004000400010
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