ArticleBMJ open2012
Urban city transportation mode and respiratory health effect of air pollution: a cross-sectional study among transit and non-transit workers in Nigeria.
Article in BMJ open, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.
- Health Risks Associated with Occupational Exposure to Ambient Air Pollution in Commercial Drivers: A Systematic Review.International journal of environmental research and public health · 2018Pooled it
- Ambient particulate matter pollution and lung function among informal transport workers in Ghana.Scientific reports · 2026Article
- Assessment of respiratory function status among commercial motorcycle drivers in Sawla town, southern Ethiopia: comparative cross-sectional study.Scientific reports · 2026Article
- Occupational hazard to on-road air pollution within passenger transport micro-environments: evidence from traffic congested areas in Colombo, Sri Lanka.BMC public health · 2025Article
- Article
- Particulate matter pollution at traffic hotspots of Accra, Ghana: levels, exposure experiences of street traders, and associated respiratory and cardiovascular symptoms.Journal of exposure science & environmental epidemiology · 2022Article
- Pulmonary functions of commercial tricyclists (Keke Napep riders) in Enugu State, Nigeria.African health sciences · 2020Article
- Pulmonary Function Testing in Cement Transport Workers at Incheh Borun Border, Northeast of Iran.Iranian journal of public health · 2019Article
- Levels of trace elements in PMEnvironmental monitoring and assessment · 2019Article
- Psychosocial Work Factors, Job Stress and Strain at the Wheel: Validation of the Copenhagen Psychosocial Questionnaire (COPSOQ) in Professional Drivers.Frontiers in psychology · 2019Article
- Environmental Health Research in Africa: Important Progress and Promising Opportunities.Frontiers in genetics · 2019Review
- Respiratory Health Status of Workers in a Bottling Factory in Benin City, Nigeria.International journal of environmental research and public health · 2018Article
- The impact of occupational exposure to traffic-related air pollution among professional motorcyclists from Porto Alegre, Brazil, and its association with genetic and oxidative damage.Environmental science and pollution research international · 2018Article
- A Narrative Review on the Human Health Effects of Ambient Air Pollution in Sub-Saharan Africa: An Urgent Need for Health Effects Studies.International journal of environmental research and public health · 2018Review
- Occupation exposed to road-traffic emissions and respiratory health among Congolese transit workers, particularly bus conductors, in Kinshasa: a cross-sectional study.Environmental health and preventive medicine · 2017Article
- Predictive and Prognostic Biomarkers of Respiratory Diseases due to Particulate Matter Exposure.Journal of cancer prevention · 2017Review
- Respiratory symptom, lung function and exhaled carbon monoxide among a sample of traffic workers in Lagos, Nigeria: A pilot survey.Nigerian medical journal : journal of the Nigeria Medical Association · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo assess the respiratory health effect of city ambient air pollutants on transit and non-transit workers and compare such effects by transportation mode, occupational exposure and sociodemographic characteristics of participants.
designCross-sectional, randomised survey.
settingA two primary healthcare centre survey in 2009/2010 in Uyo metropolis, South-South Nigeria.
participantsOf the 245 male participants recruited, 168 (50 taxi drivers, 60 motorcyclists and 58 civil servants) met the inclusion criteria. These include age 18-35 years, a male transit worker or civil servant who had worked within Uyo metropolis for at least a year prior to the study, and had no history of respiratory disorders/impairment or any other debilitating illness.
main outcome measureThe adjusted ORs for respiratory function impairment (force vital capacity (FVC) and/or FEV(1)<80% predicted or FEV(1)/FVC<70% predicted) using Global Initiative for Chronic Obstructive Lung Diseases (GOLD) and National Institute for Health and Clinical Excellence (NICE) criteria were calculated. In order to investigate specific occupation-dependent respiratory function impairment, a comparison was made between the ORs for respiratory impairment in the three occupations. Adjustments were made for some demographic variables such as age, BMI, area of residence, etc.
resultsExposure to ambient air pollution by occupation and transportation mode was independently associated with respiratory functions impairment and incident respiratory symptoms among participants. Motorcyclists had the highest effect, with adjusted OR 3.10, 95% CI 0.402 to 16.207 for FVC<80% predicted and OR 1.71, 95% CI 0.61 to 4.76 for FEV(1)/FVC<70% predicted using GOLD and NICE criteria. In addition, uneducated, currently smoking transit workers who had worked for more than 1 year, with three trips per day and more than 1 h transit time per trip were significantly associated with higher odds for respiratory function impairment at p<0.001, respectively.
conclusionsFindings of this study lend weights to the existing literature on the adverse respiratory health effect of ambient air pollution on city transit workers globally. The role of other confounders acting synergistically to cause a more deleterious effect is obvious. In all, the effect depends on the mode and duration of exposure.
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Registered trials
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