Effect of a clean stove intervention on inflammatory biomarkers in pregnant women in Ibadan, Nigeria: A randomized controlled study

Olopade, Christopher O.; Frank, Elizabeth; Bartlett, Emily; Alexander, Donee; Dutta, Anindita; Ibigbami, Tope; Adu, Damilola; Olamijulo, John; Arinola, Ganiyu Olatunbosun; Karrison, Theodore; Ojengbede, Oladosu

doi:10.1016/j.envint.2016.11.004

Cited by 39 publications

(35 citation statements)

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“…Consistent with previous research on the association of clean fuel cooking technologies and ICS with CVD risk factors, we expected to find a lower MetS prevalence among ICS users (27)(28)(29)(30). PR values for ICS in women users indeed suggested that the intervention improving HAP reduces the prevalence of MetS in this group (PR=0.70, p=0.106).…”

Section: Discussionsupporting

confidence: 87%

“…Yet, reduction of PM 2.5 levels of kitchen and personal exposures did not achieve the World Health Organization (WHO) air quality standards of 25µg/m 3 per day (43). Other literature on the effect of ICS or LPG interventions also shows positive effects on cardiovascular health in women despite not meeting WHO air quality standards (28)(29)(30). The latency of the effect of HAP reduction on MetS from clean energy cooking is not yet fully understood.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast to ambient air pollution, where only observational studies are feasible, intervention studies on HAP can efficiently study potential determinants of health. There is evidence that HAP reductions from improving biomass-fuelled stoves with clean cooking technologies either through ventilated improved (biomass fuel) cookstoves (ICS) or through replacing them with cleaner fuel stoves using ethanol or liquid petroleum gas (LPG), were associated with lower cardiovascular health risks (27)(28)(29)(30). Peruvian governmental, NGOs and private sector organisations provided ICS and LPG to rural households to improve health and well-being (31), however, literature linking CVDs burden to ICS interventions is scarce.…”

Section: Introductionmentioning

confidence: 99%

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Improved cookstoves and the prevalence of metabolic syndrome in the rural Peruvian Andes: a quasi-experimental study

Sanchez-Samaniego

Mäusezahl

Cárcamo

et al. 2019

Preprint

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Background: Household air pollution increases the risk of non-communicable diseases, such as cardiovascular diseases and metabolic syndrome. This study hypothesised that the reduction of household air pollution through the installation of improved cookstoves is associated with the prevalence of metabolic syndrome. We compared the prevalence of metabolic syndrome between adults using open fire stoves and using improved cookstoves in high altitude provinces of Cajabamba and San Marcos in rural Peruvian Andes.Methods: This is a quasi experimental study nested within a randomised controlled trial (parent study) of 317 children randomised in four study arms. The parents study applied a 2x2 factorial design with three single intervention arms (improved cookstove (ICS), early child development (ECD) and Control) and one combined arm (ICS-ECD). This study was conducted 6-10 months after the ICS intervention was implemented and all parents of the 317 children in the parent study were eligible to participate. Ventilated improved cookstoves using biomass fuel were provided to intervention homes. All participants answered a 24-hour food recall and underwent a physical examination for metabolic syndrome diagnosis. Results: A total of 385 participants were allocated to two groups of improved cookstove users with 190 (112 women and 78 men) and open-fire stove users with 195 (123 women and 72 men). Metabolic syndrome was detected in 21% of all participants and more frequently in women than men (26% versus 13%). In women, the improved cookstove intervention was a protective factor for metabolic syndrome (Prevalence Ratio= 0.70 (0.46 to 1.08), p=0.11). In addition, PR increased with age in women. In both gender, significantly lower PR was found in participants living ≥2500 meters above sea level (PR=0.65 (0.42 to 1.00), p=0.051 in women; (PR=0.25 (0.07 to 0.71), p=0.009 in men).Conclusions: The improved cookstove intervention reducing household air pollution is associated with a lower prevalence of MetS in women users. In addition, residential altitude is an important risk factor for metabolic syndrome even in high altitude populations. Keywords: biomass fuel ventilated improved cookstove, household air pollution, metabolic syndrome, high altitude, Peru Trial registration: Trial registration number ISRCTN26548981 at www.srctn.com . Registered retrospectively, Jan. 15 2018.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improved cookstoves and the prevalence of metabolic syndrome in the rural Peruvian Andes: a quasi-experimental study

Sanchez-Samaniego

Mäusezahl

Cárcamo

et al. 2019

Preprint

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“…The use of polluting cooking fuels presents a serious global health risk due to household air pollution (HAP) exposure. Elevated levels of fine particulate matter of diameter <2.5 mm (PM 2.5 ) due to HAP (HAP-PM 2.5 ) have been linked to respiratory diseases (child pneumonia [3], COPD [4] and lung cancer [5]), adverse pregnancy outcomes [6,7], cataracts [8], precursors to cardiovascular diseases (CVD), including hypertension [9], and to CVD [10][11][12][13]. Exposure to HAP was the second highest environmental risk factor in the Global Burden of Disease 2017 [14], with an estimated 1.64 million attributable deaths [1,15].…”

Section: Introductionmentioning

confidence: 99%

Household, community, sub-national and country-level predictors of primary cooking fuel switching in nine countries from the PURE study

Shupler

Hystad

Gustafson

et al. 2019

Environ. Res. Lett.

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Introduction. Switching from polluting (e.g. wood, crop waste, coal) to clean (e.g. gas, electricity) cooking fuels can reduce household air pollution exposures and climate-forcing emissions. While studies have evaluated specific interventions and assessed fuel-switching in repeated cross-sectional surveys, the role of different multilevel factors in household fuel switching, outside of interventions and across diverse community settings, is not well understood. Methods. We examined longitudinal survey data from 24 172 households in 177 rural communities across nine countries within the Prospective Urban and Rural Epidemiology study. We assessed household-level primary cooking fuel switching during a median of 10 years of follow up (∼2005-2015). We used hierarchical logistic regression models to examine the relative importance of household, community, sub-national and national-level factors contributing to primary fuel switching. Results. One-half of study households (12 369) reported changing their primary cooking fuels between baseline and follow up surveys. Of these, 61% (7582) switched from polluting (wood, dung, agricultural waste, charcoal, coal, kerosene) to clean (gas, electricity) fuels, 26% (3109) switched between different polluting fuels, 10% (1164) switched from clean to polluting fuels and 3% (522) switched between different clean fuels. Among the 17 830 households using polluting cooking fuels at baseline, household-level factors (e.g. larger household size, higher wealth, higher education level) were most strongly associated with switching from polluting to clean fuels in India; in all other countries, community-level factors (e.g. larger population density in 2010, larger increase in population density between 2005 and 2015) were the strongest predictors of polluting-to-clean fuel switching. Conclusions. The importance of community and sub-national factors relative to household characteristics in determining polluting-to-clean fuel switching varied dramatically across the nine countries examined. This highlights the potential importance of national and other contextual factors in shaping large-scale clean cooking transitions among rural communities in low-and middle-income countries.

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“…Household air pollution was listed as one of the top ten largest contributors . Five of these articles focused on exposures to cooking or biomass fuel use in the home (Quinn et al, 2016;Alexander et al, 2017;Olopade et al, 2017;Quinn et al, 2017;Arku et al, 2018). Respiratory disease represented another major health outcome impacted by indoor air pollution; evaluated as the primary outcome of interest or a relevant co-morbidity in 77 of the identified indoor air pollution articles.…”

Section: Indoor Air Pollutionmentioning

confidence: 99%

Environmental Health Research in Africa: Important Progress and Promising Opportunities

Joubert

Mantooth²,

McAllister

2020

Front. Genet.

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The World Health Organization in 2016 estimated that over 20% of the global disease burden and deaths were attributed to modifiable environmental factors. However, data clearly characterizing the impact of environmental exposures and health endpoints in African populations is limited. To describe recent progress and identify important research gaps, we reviewed literature on environmental health research in African populations over the last decade, as well as research incorporating both genomic and environmental factors. We queried PubMed for peer-reviewed research articles, reviews, or books examining environmental exposures and health outcomes in human populations in Africa. Searches utilized medical subheading (MeSH) terms for environmental exposure categories listed in the March 2018 US National Report on Human Exposure to Environmental Chemicals, which includes chemicals with worldwide distributions. Our search strategy retrieved 540 relevant publications, with studies evaluating health impacts of ambient air pollution (n=105), indoor air pollution (n = 166), heavy metals (n = 130), pesticides (n = 95), dietary mold (n = 61), indoor mold (n = 9), per-and polyfluoroalkyl substances (PFASs, n = 0), electronic waste (n = 9), environmental phenols (n = 4), flame retardants (n = 8), and phthalates (n = 3), where publications could belong to more than one exposure category. Only 23 publications characterized both environmental and genomic risk factors. Cardiovascular and respiratory health endpoints impacted by air pollution were comparable to observations in other countries. Air pollution exposures unique to Africa and some other resource limited settings were dust and specific occupational exposures. Literature describing harmful health effects of metals, pesticides, and dietary mold represented a context unique to Africa. Studies of exposures to phthalates, PFASs, phenols, and flame retardants were very limited. These results underscore the need for further focus on current and emerging environmental and chemical health risks as well as better integration of genomic and environmental factors in African research studies. Environmental exposures with distinct routes of exposure, unique co-exposures and co-morbidities, combined with the extensive genomic diversity in Africa may lead to the identification of novel mechanisms underlying complex disease and promising potential for translation to global public health.

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Effect of a clean stove intervention on inflammatory biomarkers in pregnant women in Ibadan, Nigeria: A randomized controlled study

Abstract: Decrease in TNF-α concentration from baseline to third trimesters in intervention group women could indicate reduced cardiovascular stress and prothrombotic effects from decreased HAP. Our findings suggest that ethanol-burning stoves may mitigate cardiovascular health risks.

Cited by 39 publications

References 34 publications

Improved cookstoves and the prevalence of metabolic syndrome in the rural Peruvian Andes: a quasi-experimental study

Improved cookstoves and the prevalence of metabolic syndrome in the rural Peruvian Andes: a quasi-experimental study

Household, community, sub-national and country-level predictors of primary cooking fuel switching in nine countries from the PURE study

Environmental Health Research in Africa: Important Progress and Promising Opportunities

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