Impact of Improved "Injera" Baking Stove Use on Childhood Acute Respiratory Infection Prevention in Northwest Ethiopia
Effect of Improved "Injera" Baking Stove Intervention on Household Air Pollution and Childhood Acute Respiratory Infection Prevention: A Cluster Randomized Controlled Trial In Northwest Ethiopia
2 other identifiers
interventional
5,500
1 country
1
Brief Summary
In Ethiopia, great majorities (95%) of households rely on solid biomass fuels such as wood, muck, crop residues, and charcoal burned in highly polluting stoves to meet the basic household energy needs with its severe health consequences due to emission of toxic indoor air pollutants. Correspondingly, household air pollution (HAP) from biomass fuel use is now estimated to be responsible for nearly 3.5 million premature deaths annually, with the highest disease burdens experienced by countries in sub-Saharan Africa. HAP ranks as the highest environmental risk factors to premature deaths globally and 2nd leading risk factor next to childhood underweight in most of sub-Saharan Africa countries as well as 3rd leading risk factor of disease next to childhood underweight, and suboptimal breastfeeding in Ethiopia. Usually prevention efforts aimed at reducing HAP and related health burdens have been focused on the use of energy efficient cookstoves. There is, however, rigorous lack of evidence in Ethiopia or in other similar settings whether it is possible to achieve adequate HAP reduction and improve health with locally made energy efficient baking stoves from a public health point of view. Particularly, the popular Ethiopian energy efficient "Injera" baking stove has not been researched through stove trial inquiry. Therefore, research studies are required in Ethiopia on health benefits achieved when households adopt energy efficient baking stoves. In view of that, cluster randomized controlled trial will be employed with experimental study design for one year to test the effectiveness of the Ethiopian improved "Injera" baking stove intervention on reducing HAP and childhood acute respiratory infection (ARI) through comparing equal size groups of children before and after part of households received an improved "Injera" baking stove. Accordingly, the proposed stove trial aims to address an important research gap by determining whether the Ethiopian improved "Injera" baking biomass stove intervention can adequately reduce HAP exposure to prevent childhood acute respiratory infection. With this objective, the proposed stove trial will test the hypothesis that there is a statistically significant difference in HAP levels and incidence of childhood ARI when using traditional versus improved "Injera" baking stove in Northwest Ethiopia
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jun 2018
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2018
CompletedFirst Submitted
Initial submission to the registry
July 24, 2018
CompletedFirst Posted
Study publicly available on registry
August 2, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2019
CompletedAugust 2, 2018
August 1, 2018
1.1 years
July 24, 2018
August 1, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Longitudinal proportion of childhood acute respiratory infection as measured by childhood pneumonia status using World Health Organization's Integrated Management of Neonatal and Childhood Illness algorism.
Childhood acute respiratory infection/pneumonia status will be assessed using standard case recording form by field workers during household visits where the index child mothers/caregivers are asked about ARI signs \& symptoms in the preceding two weeks. Moreover, to overcome some of the limitations of the self-reported health data, physical examination of the ill index child will be conducted by field workers trained in World Health Organization's Integrated Management of Neonatal and Childhood Illness algorism.
Change from baseline childhood ARI due to Improved "Injera" Baking Stove Intervention will be assessed at one year.
Secondary Outcomes (1)
Household air pollution as measured by concentration of indoor particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5) in µg/m3
Change from baseline HAP (indoor PM2.5 concentration) due to Improved "Injera" Baking Stove Intervention will be assessed at one year.
Study Arms (2)
Improved "Injera" Baking Biomass Stove
EXPERIMENTAL2750 eligible households with in 50 randomly selected clusters/"Gotes" are allocated into the improved "Injera" backing stove intervention arm.
Control arm
NO INTERVENTIONSimilarly 2750 eligible households with in 50 randomly selected clusters/Gotes will continue to use the traditional "Injera" baking biomass stove and will be used as control arm.
Interventions
Replacing of the Ethiopian traditional "Injera" baking biomass stove with improved baking biomass stove, the well-known commercially distributed type of baking stove in Ethiopia, will be the intervention for this study. Control HHs will continue to use the traditional baking biomass stove. Concerning intervention duration, since the life span of the Ethiopian improved baking stove is about 5 years, the length of the intervention period will be one year to account for seasonal factors that have major effect on both ARI incidence \& HAP level in Ethiopia as well as to maintain a balance between achieving a sufficiently long follow-up period for outcome measurements \& suitably short follow-up period to decrease attrition.
Eligibility Criteria
You may qualify if:
- Households with children up to 4 years old to ensure a minimum of one year longitudinal data collection before the child's 5th birthday.
- Households who bake "Injera" exclusively with a traditional baking stove
You may not qualify if:
- Households who do not have any enclosed main cooking area (kitchen) structure
- Children who will be born during the course of the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
"Mecha" Health and Demographic Surveillance System (MHDSS) Site, Bahir Dar University
Bahir Dar, Amhara Regional State, P.O.Box 79, Ethiopia
Related Publications (23)
Baumgartner J, Smith KR, Chockalingam A. Reducing CVD Through Improvements in Household Energy: Implications for Policy-Relevant Research. Glob Heart. 2012 Sep;7(3):243-7. doi: 10.1016/j.gheart.2012.06.018. No abstract available.
PMID: 25691487BACKGROUNDBerhane K, Kumie A, Samet J. Health Effects of Environmental Exposures, Occupational Hazards and Climate Change in Ethiopia: Synthesis of Situational Analysis, Needs Assessment and the Way Forward. Ethiop J Health Dev. 2016;30(1 Spec Iss):50-56.
PMID: 28867920BACKGROUNDBonjour S, Adair-Rohani H, Wolf J, Bruce NG, Mehta S, Pruss-Ustun A, Lahiff M, Rehfuess EA, Mishra V, Smith KR. Solid fuel use for household cooking: country and regional estimates for 1980-2010. Environ Health Perspect. 2013 Jul;121(7):784-90. doi: 10.1289/ehp.1205987. Epub 2013 May 3.
PMID: 23674502BACKGROUNDBudds J, Biran, A. & Rouse, J. What's Cooking: a review of the health impacts of indoor air pollution and technical interventions for its reduction. 2001
BACKGROUNDCampbell MK, Fayers PM, Grimshaw JM. Determinants of the intracluster correlation coefficient in cluster randomized trials: the case of implementation research. Clin Trials. 2005;2(2):99-107. doi: 10.1191/1740774505cn071oa.
PMID: 16279131BACKGROUNDChan AW, Tetzlaff JM, Gotzsche PC, Altman DG, Mann H, Berlin JA, Dickersin K, Hrobjartsson A, Schulz KF, Parulekar WR, Krleza-Jeric K, Laupacis A, Moher D. SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials. BMJ. 2013 Jan 8;346:e7586. doi: 10.1136/bmj.e7586.
PMID: 23303884BACKGROUNDDesalegn B, Suleiman H, Asfaw A. Household fuel use and acute respiratory infections among younger children: an exposure assessment in Shebedino Wereda, Southern Ethiopia. African Journal of Health Sciences. 2011;18(1-2):31-6
BACKGROUNDEdwards R, Hubbard A, Khalakdina A, Pennise D, Smith KR. Design considerations for field studies of changes in indoor air pollution due to improved stoves. Energy for Sustainable Development June 2007;11(2)
BACKGROUNDEnergy Sector Mapping and Database Development. Ethiopian Ministry of Water and Energy, 2013a
BACKGROUNDHemming K, Girling AJ, Sitch AJ, Marsh J, Lilford RJ. Sample size calculations for cluster randomised controlled trials with a fixed number of clusters. BMC Med Res Methodol. 2011 Jun 30;11:102. doi: 10.1186/1471-2288-11-102.
PMID: 21718530BACKGROUNDHousehold cookstove, environment, health, and climate change: a new look at an old problem, The World Bank, The Environment Department (Climate Change). 2011
BACKGROUNDKernan WN, Viscoli CM, Makuch RW, Brass LM, Horwitz RI. Stratified randomization for clinical trials. J Clin Epidemiol. 1999 Jan;52(1):19-26. doi: 10.1016/s0895-4356(98)00138-3.
PMID: 9973070BACKGROUNDKumie A, Emmelin A, Wahlberg S, Berhane Y, Ali A, Mekonen E, Worku A, Brandstrom D. Sources of variation for indoor nitrogen dioxide in rural residences of Ethiopia. Environ Health. 2009 Nov 18;8:51. doi: 10.1186/1476-069X-8-51.
PMID: 19922645BACKGROUNDKumie A, Samet J, Berhane K. Air Pollution, Occupational Health and Safety, and Climate Change: Findings, research needs and policy implications establishing a GEOHealth Hub for East Africa. Situational analysis and needs assessment for Ethiopia. August 2014
BACKGROUNDLim SS, Vos T, Flaxman AD, Danaei G, Shibuya K, Adair-Rohani H, Amann M, Anderson HR, Andrews KG, Aryee M, Atkinson C, Bacchus LJ, Bahalim AN, Balakrishnan K, Balmes J, Barker-Collo S, Baxter A, Bell ML, Blore JD, Blyth F, Bonner C, Borges G, Bourne R, Boussinesq M, Brauer M, Brooks P, Bruce NG, Brunekreef B, Bryan-Hancock C, Bucello C, Buchbinder R, Bull F, Burnett RT, Byers TE, Calabria B, Carapetis J, Carnahan E, Chafe Z, Charlson F, Chen H, Chen JS, Cheng AT, Child JC, Cohen A, Colson KE, Cowie BC, Darby S, Darling S, Davis A, Degenhardt L, Dentener F, Des Jarlais DC, Devries K, Dherani M, Ding EL, Dorsey ER, Driscoll T, Edmond K, Ali SE, Engell RE, Erwin PJ, Fahimi S, Falder G, Farzadfar F, Ferrari A, Finucane MM, Flaxman S, Fowkes FG, Freedman G, Freeman MK, Gakidou E, Ghosh S, Giovannucci E, Gmel G, Graham K, Grainger R, Grant B, Gunnell D, Gutierrez HR, Hall W, Hoek HW, Hogan A, Hosgood HD 3rd, Hoy D, Hu H, Hubbell BJ, Hutchings SJ, Ibeanusi SE, Jacklyn GL, Jasrasaria R, Jonas JB, Kan H, Kanis JA, Kassebaum N, Kawakami N, Khang YH, Khatibzadeh S, Khoo JP, Kok C, Laden F, Lalloo R, Lan Q, Lathlean T, Leasher JL, Leigh J, Li Y, Lin JK, Lipshultz SE, London S, Lozano R, Lu Y, Mak J, Malekzadeh R, Mallinger L, Marcenes W, March L, Marks R, Martin R, McGale P, McGrath J, Mehta S, Mensah GA, Merriman TR, Micha R, Michaud C, Mishra V, Mohd Hanafiah K, Mokdad AA, Morawska L, Mozaffarian D, Murphy T, Naghavi M, Neal B, Nelson PK, Nolla JM, Norman R, Olives C, Omer SB, Orchard J, Osborne R, Ostro B, Page A, Pandey KD, Parry CD, Passmore E, Patra J, Pearce N, Pelizzari PM, Petzold M, Phillips MR, Pope D, Pope CA 3rd, Powles J, Rao M, Razavi H, Rehfuess EA, Rehm JT, Ritz B, Rivara FP, Roberts T, Robinson C, Rodriguez-Portales JA, Romieu I, Room R, Rosenfeld LC, Roy A, Rushton L, Salomon JA, Sampson U, Sanchez-Riera L, Sanman E, Sapkota A, Seedat S, Shi P, Shield K, Shivakoti R, Singh GM, Sleet DA, Smith E, Smith KR, Stapelberg NJ, Steenland K, Stockl H, Stovner LJ, Straif K, Straney L, Thurston GD, Tran JH, Van Dingenen R, van Donkelaar A, Veerman JL, Vijayakumar L, Weintraub R, Weissman MM, White RA, Whiteford H, Wiersma ST, Wilkinson JD, Williams HC, Williams W, Wilson N, Woolf AD, Yip P, Zielinski JM, Lopez AD, Murray CJ, Ezzati M, AlMazroa MA, Memish ZA. A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990-2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet. 2012 Dec 15;380(9859):2224-60. doi: 10.1016/S0140-6736(12)61766-8.
PMID: 23245609BACKGROUNDMeinert CL. Clinical Trials: Design, Conduct and Analysis. New York: Oxford University Press. 1986
BACKGROUNDRehfuess E, Bruce N, Smith K. Solid Fuel Use: Health Effect. In: Nriagu JO (ed.) Encyclopedia of Environmental Health, v 5, pp. 150161 Burlington: Elsevier, 2011. Environmental Health. 2011;5:150161.
BACKGROUNDSmith KR, Dutta K, Chengappa C, Gusain P, Masera O, Berrueta V, et al. Monitoring and evaluation of improved biomass cookstove programs for indoor air quality and stove performance: conclusions from the Household Energy and Health Project. Energy for Sustainable Development. 2007;11(2):5-18
BACKGROUNDSmith KR, Frumkin H, Balakrishnan K, Butler CD, Chafe ZA, Fairlie I, Kinney P, Kjellstrom T, Mauzerall DL, McKone TE, McMichael AJ, Schneider M. Energy and human health. Annu Rev Public Health. 2013;34:159-88. doi: 10.1146/annurev-publhealth-031912-114404. Epub 2013 Jan 16.
PMID: 23330697BACKGROUNDTefera W, Asfaw A, Gilliland F, Worku A, Wondimagegn M, Kumie A, Samet J, Berhane K. Indoor and Outdoor Air Pollution- related Health Problem in Ethiopia: Review of Related Literature. Ethiop J Health Dev. 2016;30(1):5-16.
PMID: 28890631BACKGROUNDWelfare Monitoring Survey. Addis Ababa, Ethiopia: Central Statistical Agency, 2011.
BACKGROUNDAdane MM, Alene GD, Mereta ST, Wanyonyi KL. Effect of improved cookstove intervention on childhood acute lower respiratory infection in Northwest Ethiopia: a cluster-randomized controlled trial. BMC Pediatr. 2021 Jan 4;21(1):4. doi: 10.1186/s12887-020-02459-1.
PMID: 33397313DERIVEDAdane MM, Alene GD, Mereta ST. Biomass-fuelled improved cookstove intervention to prevent household air pollution in Northwest Ethiopia: a cluster randomized controlled trial. Environ Health Prev Med. 2021 Jan 4;26(1):1. doi: 10.1186/s12199-020-00923-z.
PMID: 33397282DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
Mesafint M. Adane, MPH,BSc.,
School of Public Health, College of Medicine and Health Sciences, Bahir Dar University, Ethiopia
- STUDY CHAIR
Prof. Getu D. Alene, PhD,
Department of Epidemiology and Biostatics, School of Public Health, College of Medicine and Health Sciences, Bahir Dar University, Ethiopia
- STUDY DIRECTOR
Dr. Seid T. Mereta, PhD,
Department of Environmental Health Science & Technology, School of Public Health, Jimma University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor at School of Public Health, College of Medicine and Health Sciences
Study Record Dates
First Submitted
July 24, 2018
First Posted
August 2, 2018
Study Start
June 1, 2018
Primary Completion
July 1, 2019
Study Completion
July 1, 2019
Last Updated
August 2, 2018
Record last verified: 2018-08