Household biomass fuel use, asthma symptoms severity, and asthma underdiagnosis in rural schoolchildren in Nigeria: a cross-sectional observational study

Oluwole, Oluwafemi; Arinola, Ganiyu Olatunbosun; Huo, Dezheng; Olopade, Christopher O.

doi:10.1186/s12890-016-0352-8

Cited by 34 publications

(31 citation statements)

References 36 publications

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“…We attribute this to the low prevalence of smoking in this population, by the mothers during pregnancy (2.6%) and by any household members currently (<12%). The lack of association between asthma and indoor cooking with biomass fuels in this study is consistent with other studies from Africa (17,18). Indeed, this is consistent with the general pattern of lower risk of asthma in rural areas (where biomass fuel use is highest) than urban areas.…”

Section: Discussionsupporting

confidence: 92%

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Risk factors for asthma among schoolchildren who participated in a case-control study in urban Uganda

Mpairwe

Namutebi

Nkurunungi

et al. 2019

Preprint

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Methods Study designWe conducted a case-control study among schoolchildren, and report following STROBE guidelines (20). Study population, sampling and consentThe study was conducted in 5-17-year-old schoolchildren in primary and secondary schools in Wakiso District, Central Uganda, a predominantly urban setting.All schools in the study area were invited and 96% participated. At each school, we prescreened children by requesting all those with any breathing problems to register with us, and concurrently recruited two children without any breathing problems at random from the same class, using a random number generator programme in STATA (StataCorp, Texas, USA). The children delivered invitation letters to their parents; parents/guardians with telephones were invited to attend a meeting during which those interested provided written informed consent, and children aged ≥8 years provided written informed assent. Study enrollment was

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Section: Discussionsupporting

confidence: 92%

“…Other risk factors, similar to those in HICs, include maternal smoking (12,13), maternal history of asthma (14), childhood atopic sensitisation (11,15) and history of allergy (14,16). Previous reports suggest no association between biomass fuels and asthma risk (17,18), but increased asthma symptoms (18,19).…”

Section: Introductionmentioning

confidence: 98%

Risk factors for asthma among schoolchildren who participated in a case-control study in urban Uganda

Mpairwe

Namutebi

Nkurunungi

et al. 2019

Preprint

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“…This is consistent with other studies that estimated indoor air pollution from biomass fuel use including paraffin. A recent study of Nigerian rural schoolchildren reported an increased risk of severe asthma symptoms (OR: 2.37, 95% CI: 1.16‐4.84) with biomass fuel use . Here in South Africa, schoolchildren aged 13‐14 years residing in homes using biomass fuel for cooking in Polokwane had an increased risk of asthma (OR: 1.50, 95% CI: 1.09‐2.10) .…”

Section: Discussionmentioning

confidence: 92%

Asthma‐related outcomes associated with indoor air pollutants among schoolchildren from four informal settlements in two municipalities in the Western Cape Province of South Africa

et al. 2018

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The health impact of indoor air pollution in informal settlement households has not been extensively studied in South Africa. This cross‐sectional study investigated the association between asthma and common indoor exposures among schoolchildren from four informal settlements located in two municipalities in the Western Cape Province. A total of 590 children, aged 9‐11 years, were recruited. The International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire was administered to caregivers. Pulmonary function assessment included spirometry and fractional exhaled nitric oxide (FeNO). Phadiatop test for atopy was done. The prevalence of doctor‐diagnosed asthma was 3.4% (n = 20) among whom only 50% were on treatment. The prevalence of current wheeze was 12.9%, and 17.6% had airway obstruction (FEV1 < lower limit of normal), while 10.2% had airway inflammation (FeNO > 35 ppb). In adjusted logistic regression models, dampness, visible mold growth, paraffin use for cooking, and passive smoking were associated with a twofold to threefold increased risk in upper and lower airway outcomes. The strongest association was that of visible mold growth with rhinitis (adjusted odds ratio—aOR 3.37, 95% CI: 1.69‐6.71). Thus, there is a need for improved diagnosis of childhood asthma and Indoor Air Quality in informal settlement households.

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“…This included articles describing general child respiratory health (Albers et al, 2015), acute lower respiratory tract infections in children (Buchner and Rehfuess, 2015), shortness of breath (Das et al, 2017), and asthma. Asthma and related morbidities were characterized in 37 articles and included outcomes such as asthma diagnosis and severity (Oluwole et al, 2017), asthma control (Kuti et al, 2017), allergen sensitization , and atopy (Morcos et al, 2011). Indoor air pollution-related impairments on innate immunity were also noted in some studies.…”

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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Household biomass fuel use, asthma symptoms severity, and asthma underdiagnosis in rural schoolchildren in Nigeria: a cross-sectional observational study

Cited by 34 publications

References 36 publications

Risk factors for asthma among schoolchildren who participated in a case-control study in urban Uganda

Risk factors for asthma among schoolchildren who participated in a case-control study in urban Uganda

Asthma‐related outcomes associated with indoor air pollutants among schoolchildren from four informal settlements in two municipalities in the Western Cape Province of South Africa

Environmental Health Research in Africa: Important Progress and Promising Opportunities

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