Fine particulate air pollution, nitrogen dioxide, and systemic autoimmune rheumatic disease in Calgary, Alberta

To estimate the association between fine particulate (PM2.5) and nitrogen dioxide (NO2) pollution and systemic autoimmune rheumatic diseases (SARDs). Associations between ambient air pollution (PM2.5 and NO2) and SARDs were assessed using land-use regression models for Calgary, Alberta and administr...

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Veröffentlicht in:Environmental research 2015-07, Vol.140, p.474-478
Hauptverfasser: Bernatsky, Sasha, Smargiassi, Audrey, Johnson, Markey, Kaplan, Gilaad G., Barnabe, Cheryl, Svenson, Larry, Brand, Allan, Bertazzon, Stefania, Hudson, Marie, Clarke, Ann E., Fortin, Paul R., Edworthy, Steven, Bélisle, Patrick, Joseph, Lawrence
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container_start_page 474
container_title Environmental research
container_volume 140
creator Bernatsky, Sasha
Smargiassi, Audrey
Johnson, Markey
Kaplan, Gilaad G.
Barnabe, Cheryl
Svenson, Larry
Brand, Allan
Bertazzon, Stefania
Hudson, Marie
Clarke, Ann E.
Fortin, Paul R.
Edworthy, Steven
Bélisle, Patrick
Joseph, Lawrence
description To estimate the association between fine particulate (PM2.5) and nitrogen dioxide (NO2) pollution and systemic autoimmune rheumatic diseases (SARDs). Associations between ambient air pollution (PM2.5 and NO2) and SARDs were assessed using land-use regression models for Calgary, Alberta and administrative health data (1993–2007). SARD case definitions were based on ≥2 physician claims, or ≥1 rheumatology billing code; or ≥1 hospitalization code (for systemic lupus, Sjogren's Syndrome, scleroderma, polymyositis, dermatomyositis, or undifferentiated connective tissue disease). Bayesian hierarchical latent class regression models estimated the probability that each resident was a SARD case, based on these case definitions. The sum of individual level probabilities provided the estimated number of cases in each area. The latent class model included terms for age, sex, and an interaction term between age and sex. Bayesian logistic regression models were used to generate adjusted odds ratios (OR) for NO2 and PM2.5. pollutant models, adjusting for neighbourhood income, age, sex, and an interaction between age and sex. We also examined models stratified for First-Nations (FN) and non-FN subgroups. Residents that were female and/or aged >45 had a greater probability of being a SARD case, with the highest OR estimates for older females. Independently, the odds of being a SARDs case increased with PM2.5 levels, but the results were inconclusive for NO2. The results stratified by FN and non-FN groups were not distinctly different. In this urban Canadian sample, adjusting for demographics, exposure to PM2.5 was associated with an increased risk of SARDs. The results for NO2 were inconclusive. •We assessed ambient NO2, PM2.5 and systemic autoimmune rheumatic disease (SARD).•We used land use regression models in an urban Canadian sample.•Adjusting for demographics, PM2.5 was independently associated with SARDs.•The results were inconclusive for NO2.
doi_str_mv 10.1016/j.envres.2015.05.007
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We also examined models stratified for First-Nations (FN) and non-FN subgroups. Residents that were female and/or aged &gt;45 had a greater probability of being a SARD case, with the highest OR estimates for older females. Independently, the odds of being a SARDs case increased with PM2.5 levels, but the results were inconclusive for NO2. The results stratified by FN and non-FN groups were not distinctly different. In this urban Canadian sample, adjusting for demographics, exposure to PM2.5 was associated with an increased risk of SARDs. 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Associations between ambient air pollution (PM2.5 and NO2) and SARDs were assessed using land-use regression models for Calgary, Alberta and administrative health data (1993–2007). SARD case definitions were based on ≥2 physician claims, or ≥1 rheumatology billing code; or ≥1 hospitalization code (for systemic lupus, Sjogren's Syndrome, scleroderma, polymyositis, dermatomyositis, or undifferentiated connective tissue disease). Bayesian hierarchical latent class regression models estimated the probability that each resident was a SARD case, based on these case definitions. The sum of individual level probabilities provided the estimated number of cases in each area. The latent class model included terms for age, sex, and an interaction term between age and sex. Bayesian logistic regression models were used to generate adjusted odds ratios (OR) for NO2 and PM2.5. pollutant models, adjusting for neighbourhood income, age, sex, and an interaction between age and sex. We also examined models stratified for First-Nations (FN) and non-FN subgroups. Residents that were female and/or aged &gt;45 had a greater probability of being a SARD case, with the highest OR estimates for older females. Independently, the odds of being a SARDs case increased with PM2.5 levels, but the results were inconclusive for NO2. The results stratified by FN and non-FN groups were not distinctly different. In this urban Canadian sample, adjusting for demographics, exposure to PM2.5 was associated with an increased risk of SARDs. The results for NO2 were inconclusive. •We assessed ambient NO2, PM2.5 and systemic autoimmune rheumatic disease (SARD).•We used land use regression models in an urban Canadian sample.•Adjusting for demographics, PM2.5 was independently associated with SARDs.•The results were inconclusive for NO2.</abstract><cop>Netherlands</cop><pub>Elsevier Inc</pub><pmid>25988990</pmid><doi>10.1016/j.envres.2015.05.007</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; Elsevier ScienceDirect Journals
subjects Adjustment
Age
Air pollution
Alberta
Autoimmune Diseases - chemically induced
demographic statistics
dermatomyositis
Estimates
Female
females
First Nations
Humans
income
land use
Male
Middle Aged
Nitrogen dioxide
Nitrogen Dioxide - toxicity
odds ratio
Particulate Matter - toxicity
particulates
pollutants
polymyositis
Regression
regression analysis
Rheumatic Diseases - chemically induced
risk
Sex
Systemic autoimmune rheumatic diseases
title Fine particulate air pollution, nitrogen dioxide, and systemic autoimmune rheumatic disease in Calgary, Alberta
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