{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T23:21:14Z","timestamp":1777418474859,"version":"3.51.4"},"reference-count":78,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2020,12,9]],"date-time":"2020-12-09T00:00:00Z","timestamp":1607472000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100000066","name":"National Institute of Environmental Health Sciences","doi-asserted-by":"publisher","award":["ES025845"],"award-info":[{"award-number":["ES025845"]}],"id":[{"id":"10.13039\/100000066","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["P30-ES009089"],"award-info":[{"award-number":["P30-ES009089"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000139","name":"Environmental Protection Agency","doi-asserted-by":"publisher","award":["RD-83587201"],"award-info":[{"award-number":["RD-83587201"]}],"id":[{"id":"10.13039\/100000139","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We evaluated the associations of exposure to fine particulate matter (particulate matter with an aerodynamic diameter\u00a0\u22642.5 \u03bcm (PM2.5) at concentrations of &amp;lt;12 \u03bcg\/m3, 12\u201314 \u03bcg\/m3, and\u00a0\u226515 \u03bcg\/m3) and nitrogen dioxide (at concentrations of &amp;lt;26 parts per billion (ppb), 26\u201329 ppb, and\u00a0\u226530 ppb) with placental abruption in a prospective cohort study of 685,908 pregnancies in New York, New York (2008\u20132014). In copollutant analyses, these associations were examined using distributed-lag nonlinear models based on Cox models. The prevalence of abruption was 0.9% (n\u00a0=\u00a06,025). Compared with a PM2.5\u00a0concentration less than 12 \u03bcg\/m3, women exposed to PM2.5\u00a0levels of \u226515 \u03bcg\/m3 in the third trimester had a higher rate of abruption (hazard ratio (HR) = 1.68, 95% confidence interval (CI): 1.41, 2.00). Compared with a nitrogen dioxide\u00a0concentration less than 26 ppb, women exposed to nitrogen dioxide\u00a0levels of 26\u201329 ppb (HR = 1.11, 95% CI: 1.02, 1.20) and\u00a0\u226530 ppb (HR = 1.06, 95% CI: 0.96, 1.24) in the first trimester had higher rates of abruption. Compared with both PM2.5 and nitrogen dioxide\u00a0levels less than the 95th percentile in the third trimester, rates of abruption were increased with both PM2.5 and nitrogen dioxide\u00a0\u226595th percentile (HR = 1.44, 95% CI: 1.15, 1.80) and PM2.5\u00a0\u226595th percentile and nitrogen dioxide\u00a0&amp;lt;95th percentile (HR = 1.43 95% CI: 1.23, 1.66). Increased levels of PM2.5 exposure in the third trimester and nitrogen dioxide exposure in the first trimester are associated with elevated rates of placental abruption, suggesting that these exposures may be important triggers of premature placental separation through different pathways.<\/jats:p>","DOI":"10.1093\/aje\/kwaa259","type":"journal-article","created":{"date-parts":[[2020,12,5]],"date-time":"2020-12-05T03:10:20Z","timestamp":1607137820000},"page":"1021-1033","source":"Crossref","is-referenced-by-count":17,"title":["Air Pollution and Risk of Placental Abruption: A Study of Births in New York City, 2008\u20132014"],"prefix":"10.1093","volume":"190","author":[{"given":"Yongmei","family":"Huang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marianthi-Anna","family":"Kioumourtzoglou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Murray 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