Association between Ozone and Asthma Emergency Department Visits in Saint John, New Brunswick, Canada
This study examines the relationship of asthma emergency department (ED) visits to daily concentrations of ozone and other air pollutants in Saint John, New Brunswick, Canada. Data on ED visits with a presenting complaint of asthma (n = 1987) were abstracted for the period 1984-1992 (May-September)....
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| Veröffentlicht in: | Environmental health perspectives 1996-12, Vol.104 (12), p.1354-1360 |
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| creator | Stieb, David M. Burnett, Richard T. Beveridge, Robert C. Brook, Jeffrey R. |
| description | This study examines the relationship of asthma emergency department (ED) visits to daily concentrations of ozone and other air pollutants in Saint John, New Brunswick, Canada. Data on ED visits with a presenting complaint of asthma (n = 1987) were abstracted for the period 1984-1992 (May-September). Air pollution variables included ozone, sulfur dioxide, nitrogen dioxide, sulfate, and total suspended particulate (TSP); weather variables included temperature, humidex, dewpoint, and relative humidity. Daily ED visit frequencies were filtered to remove day of the week and long wave trends, and filtered values were regressed on air pollution and weather variables for the same day and the 3 previous days. The mean daily 1-hr maximum ozone concentration during the study period was 41.6 ppb. A positive, statistically significant (p |
| doi_str_mv | 10.1289/ehp.961041354 |
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Data on ED visits with a presenting complaint of asthma (n = 1987) were abstracted for the period 1984-1992 (May-September). Air pollution variables included ozone, sulfur dioxide, nitrogen dioxide, sulfate, and total suspended particulate (TSP); weather variables included temperature, humidex, dewpoint, and relative humidity. Daily ED visit frequencies were filtered to remove day of the week and long wave trends, and filtered values were regressed on air pollution and weather variables for the same day and the 3 previous days. The mean daily 1-hr maximum ozone concentration during the study period was 41.6 ppb. A positive, statistically significant (p<0.05) association was observed between ozone and asthma ED visits 2 days later, and the strength of the association was greater in nonlinear models. The frequency of asthma ED visits was 33% higher (95% CI, 10-56%) when the daily 1-hr maximum ozone concentration exceeded 75 ppb (the 95 th percentile). The ozone effect was not significantly influenced by the addition of weather or other pollutant variables into the model or by the exclusion of repeat ED visits. However, given the limited number of sampling days for sulfate and TSP, a particulate effect could not be ruled out. We detected a significant association between ozone and asthma ED visits, despite the vast majority of sampling days being below current U.S. and Canadian standards.</description><identifier>ISSN: 0091-6765</identifier><identifier>EISSN: 1552-9924</identifier><identifier>DOI: 10.1289/ehp.961041354</identifier><identifier>PMID: 9118879</identifier><language>eng</language><publisher>United States: National Institute of Environmental Health Sciences. National Institutes of Health. Department of Health, Education and Welfare</publisher><subject>Adolescent ; Adult ; Air pollutants ; Air Pollutants - adverse effects ; Air pollution ; Asthma ; Asthma - epidemiology ; Causality ; Child ; Confidence Intervals ; Dose-Response Relationship, Drug ; Emergency departments ; Emergency Medical Services - utilization ; Environmental health ; Female ; Hospital admissions ; Humans ; Male ; New Brunswick - epidemiology ; Ozone ; Ozone - adverse effects ; Particulate matter ; Recurrence ; Regression Analysis ; Seasons ; Sulfates ; Weather</subject><ispartof>Environmental health perspectives, 1996-12, Vol.104 (12), p.1354-1360</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4854-39e39722001ee8cf3d1df35aae79e07b609789d85999708b2dedbad8ac010afb3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/3432974$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/3432974$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,723,776,780,799,860,881,27901,27902,53766,53768,57992,58225</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9118879$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Stieb, David M.</creatorcontrib><creatorcontrib>Burnett, Richard T.</creatorcontrib><creatorcontrib>Beveridge, Robert C.</creatorcontrib><creatorcontrib>Brook, Jeffrey R.</creatorcontrib><title>Association between Ozone and Asthma Emergency Department Visits in Saint John, New Brunswick, Canada</title><title>Environmental health perspectives</title><addtitle>Environ Health Perspect</addtitle><description>This study examines the relationship of asthma emergency department (ED) visits to daily concentrations of ozone and other air pollutants in Saint John, New Brunswick, Canada. Data on ED visits with a presenting complaint of asthma (n = 1987) were abstracted for the period 1984-1992 (May-September). Air pollution variables included ozone, sulfur dioxide, nitrogen dioxide, sulfate, and total suspended particulate (TSP); weather variables included temperature, humidex, dewpoint, and relative humidity. Daily ED visit frequencies were filtered to remove day of the week and long wave trends, and filtered values were regressed on air pollution and weather variables for the same day and the 3 previous days. The mean daily 1-hr maximum ozone concentration during the study period was 41.6 ppb. A positive, statistically significant (p<0.05) association was observed between ozone and asthma ED visits 2 days later, and the strength of the association was greater in nonlinear models. The frequency of asthma ED visits was 33% higher (95% CI, 10-56%) when the daily 1-hr maximum ozone concentration exceeded 75 ppb (the 95 th percentile). The ozone effect was not significantly influenced by the addition of weather or other pollutant variables into the model or by the exclusion of repeat ED visits. However, given the limited number of sampling days for sulfate and TSP, a particulate effect could not be ruled out. We detected a significant association between ozone and asthma ED visits, despite the vast majority of sampling days being below current U.S. and Canadian standards.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Air pollutants</subject><subject>Air Pollutants - adverse effects</subject><subject>Air pollution</subject><subject>Asthma</subject><subject>Asthma - epidemiology</subject><subject>Causality</subject><subject>Child</subject><subject>Confidence Intervals</subject><subject>Dose-Response Relationship, Drug</subject><subject>Emergency departments</subject><subject>Emergency Medical Services - utilization</subject><subject>Environmental health</subject><subject>Female</subject><subject>Hospital admissions</subject><subject>Humans</subject><subject>Male</subject><subject>New Brunswick - epidemiology</subject><subject>Ozone</subject><subject>Ozone - adverse effects</subject><subject>Particulate matter</subject><subject>Recurrence</subject><subject>Regression Analysis</subject><subject>Seasons</subject><subject>Sulfates</subject><subject>Weather</subject><issn>0091-6765</issn><issn>1552-9924</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1vEzEURS1EVUJhyRLJC8Sq09pje-y3QQqhUKqKLvjYWh7Pm8YlYwd7QlR-PYMSRWXVlfV0j66udQh5xdkZrw2c43J9Bg1nkgsln5AZV6quAGr5lMwYA141ulHPyPNS7hhj3DTNMTkGzo3RMCM4LyX54MaQIm1x3CJGevMnRaQudnRexuXg6MWA-Rajv6cfcO3yOGAc6Y9QwlhoiPSrC9N9lZbxlH7BLX2fN7Fsg_95Shcuus69IEe9WxV8uX9PyPePF98Wl9X1zafPi_l15aVRshKAAnRdTzMRje9Fx7teKOdQAzLdNgy0gc4oANDMtHWHXes64zzjzPWtOCHvdr3rTTtg56eZ2a3sOofB5XubXLD_JzEs7W36bblsQAkzFbzdF-T0a4NltEMoHlcrFzFtiq25kFJJ9ijIFXAlRfM4KCcKGJ_Aagf6nErJ2B9mc2b_mbaTaXswPfGvH_71QO_VTvmbXX5XxpQfltWCaSukqEFL8ReuDLCm</recordid><startdate>19961201</startdate><enddate>19961201</enddate><creator>Stieb, David M.</creator><creator>Burnett, Richard T.</creator><creator>Beveridge, Robert C.</creator><creator>Brook, Jeffrey R.</creator><general>National Institute of Environmental Health Sciences. National Institutes of Health. Department of Health, Education and Welfare</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7T2</scope><scope>7TV</scope><scope>7U2</scope><scope>7U7</scope><scope>5PM</scope></search><sort><creationdate>19961201</creationdate><title>Association between Ozone and Asthma Emergency Department Visits in Saint John, New Brunswick, Canada</title><author>Stieb, David M. ; Burnett, Richard T. ; Beveridge, Robert C. ; Brook, Jeffrey R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4854-39e39722001ee8cf3d1df35aae79e07b609789d85999708b2dedbad8ac010afb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Air pollutants</topic><topic>Air Pollutants - adverse effects</topic><topic>Air pollution</topic><topic>Asthma</topic><topic>Asthma - epidemiology</topic><topic>Causality</topic><topic>Child</topic><topic>Confidence Intervals</topic><topic>Dose-Response Relationship, Drug</topic><topic>Emergency departments</topic><topic>Emergency Medical Services - utilization</topic><topic>Environmental health</topic><topic>Female</topic><topic>Hospital admissions</topic><topic>Humans</topic><topic>Male</topic><topic>New Brunswick - epidemiology</topic><topic>Ozone</topic><topic>Ozone - adverse effects</topic><topic>Particulate matter</topic><topic>Recurrence</topic><topic>Regression Analysis</topic><topic>Seasons</topic><topic>Sulfates</topic><topic>Weather</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stieb, David M.</creatorcontrib><creatorcontrib>Burnett, Richard T.</creatorcontrib><creatorcontrib>Beveridge, Robert C.</creatorcontrib><creatorcontrib>Brook, Jeffrey R.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Health and Safety Science Abstracts (Full archive)</collection><collection>Pollution Abstracts</collection><collection>Safety Science and Risk</collection><collection>Toxicology Abstracts</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Environmental health perspectives</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Stieb, David M.</au><au>Burnett, Richard T.</au><au>Beveridge, Robert C.</au><au>Brook, Jeffrey R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Association between Ozone and Asthma Emergency Department Visits in Saint John, New Brunswick, Canada</atitle><jtitle>Environmental health perspectives</jtitle><addtitle>Environ Health Perspect</addtitle><date>1996-12-01</date><risdate>1996</risdate><volume>104</volume><issue>12</issue><spage>1354</spage><epage>1360</epage><pages>1354-1360</pages><issn>0091-6765</issn><eissn>1552-9924</eissn><abstract>This study examines the relationship of asthma emergency department (ED) visits to daily concentrations of ozone and other air pollutants in Saint John, New Brunswick, Canada. Data on ED visits with a presenting complaint of asthma (n = 1987) were abstracted for the period 1984-1992 (May-September). Air pollution variables included ozone, sulfur dioxide, nitrogen dioxide, sulfate, and total suspended particulate (TSP); weather variables included temperature, humidex, dewpoint, and relative humidity. Daily ED visit frequencies were filtered to remove day of the week and long wave trends, and filtered values were regressed on air pollution and weather variables for the same day and the 3 previous days. The mean daily 1-hr maximum ozone concentration during the study period was 41.6 ppb. A positive, statistically significant (p<0.05) association was observed between ozone and asthma ED visits 2 days later, and the strength of the association was greater in nonlinear models. The frequency of asthma ED visits was 33% higher (95% CI, 10-56%) when the daily 1-hr maximum ozone concentration exceeded 75 ppb (the 95 th percentile). The ozone effect was not significantly influenced by the addition of weather or other pollutant variables into the model or by the exclusion of repeat ED visits. However, given the limited number of sampling days for sulfate and TSP, a particulate effect could not be ruled out. We detected a significant association between ozone and asthma ED visits, despite the vast majority of sampling days being below current U.S. and Canadian standards.</abstract><cop>United States</cop><pub>National Institute of Environmental Health Sciences. National Institutes of Health. Department of Health, Education and Welfare</pub><pmid>9118879</pmid><doi>10.1289/ehp.961041354</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adolescent Adult Air pollutants Air Pollutants - adverse effects Air pollution Asthma Asthma - epidemiology Causality Child Confidence Intervals Dose-Response Relationship, Drug Emergency departments Emergency Medical Services - utilization Environmental health Female Hospital admissions Humans Male New Brunswick - epidemiology Ozone Ozone - adverse effects Particulate matter Recurrence Regression Analysis Seasons Sulfates Weather |
| title | Association between Ozone and Asthma Emergency Department Visits in Saint John, New Brunswick, Canada |
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