{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T15:08:55Z","timestamp":1791126535982,"version":"4.1.0"},"reference-count":42,"publisher":"European Respiratory Society (ERS)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur Respir J"],"accepted":{"date-parts":[[2002,4,2]]},"published-print":{"date-parts":[[2002,9]]},"abstract":"<jats:p>The association between particulate air pollution and asthma medication use and symptoms was assessed in a panel study of 53 adult asthmatics in Erfurt, Germany in winter 1996\/1997.<\/jats:p><jats:p>Number concentrations of ultrafine particles, 0.01\u20130.1\u2005\u00b5m in diameter (NC<jats:sub>0.01\u20130.1<\/jats:sub>), mean 17,300\u00b7cm<jats:sup>\u22123<\/jats:sup>, and mass concentrations of fine particles 0.01\u20132.5\u2005\u00b5m in diameter (MC<jats:sub>0.01\u20132.5<\/jats:sub>), mean 30.3\u2005\u00b5g\u00b7m<jats:sup>\u22123<\/jats:sup>, were measured concurrently. They were not highly correlated (r=0.45). The associations between ambient particle concentrations and the prevalence of inhaled \u03b2<jats:sub>2<\/jats:sub>-agonist, corticosteroid use and asthma symptoms, were analysed separately with logistic regression models, adjusting for trend, temperature, weekend, holidays, and first order autocorrelation of the error.<\/jats:p><jats:p>Cumulative exposures over 14 days of ultrafine and fine particles were associated with corticosteroid use. \u03b2<jats:sub>2<\/jats:sub>-agonist use was associated with 5-day mean NC<jats:sub>0.01\u20130.1<\/jats:sub>and MC<jats:sub>0.01\u20132.5<\/jats:sub>. The prevalence of asthma symptoms was associated with ambient particle concentrations. The results suggest that reported asthma medication use and symptoms increase in association with particulate air pollution and gaseous pollutants such as nitrogen dioxide.<\/jats:p>","DOI":"10.1183\/09031936.02.01402001","type":"journal-article","created":{"date-parts":[[2002,9,6]],"date-time":"2002-09-06T21:12:37Z","timestamp":1031346757000},"page":"691-702","source":"Crossref","is-referenced-by-count":213,"title":["Increased asthma medication use in association with ambient fine and ultrafine particles"],"prefix":"10.1183","volume":"20","author":[{"given":"S. von","family":"Klot","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"W\u00f6lke","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.","family":"Tuch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Heinrich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.W.","family":"Dockery","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Schwartz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W.G.","family":"Kreyling","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.E.","family":"Wichmann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Peters","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"81","published-online":{"date-parts":[[2002,9,1]]},"reference":[{"key":"2024101809453315000_20.3.691.1","doi-asserted-by":"crossref","unstructured":"Pope A, Dockery D. 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