{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T04:18:33Z","timestamp":1793765913290,"version":"4.6.1"},"reference-count":57,"publisher":"BMJ","license":[{"start":{"date-parts":[[2024,9,4]],"date-time":"2024-09-04T00:00:00Z","timestamp":1725408000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ"],"accepted":{"date-parts":[[2024,7,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>\n                      To investigate associations between long term residential exposure to road traffic noise and particulate matter with a diameter &lt;2.5 \u00b5m (PM\n                      <jats:sub>2.5<\/jats:sub>\n                      ) and infertility in men and women.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Nationwide prospective cohort study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>Denmark.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>526\u2009056 men and 377\u2009850 women aged 30-45 years, with fewer than two children, cohabiting or married, and residing in Denmark between 2000 and 2017.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main outcome measure<\/jats:title>\n                    <jats:p>Incident infertility in men and women during follow-up in the Danish National Patient Register.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Infertility was diagnosed in 16\u2009172 men and 22\u2009672 women during a mean follow-up of 4.3 years and 4.2 years, respectively. Mean exposure to PM\n                      <jats:sub>2.5<\/jats:sub>\n                      over five years was strongly associated with risk of infertility in men, with hazard ratios of 1.24 (95% confidence interval 1.18 to 1.30) among men aged 30-36.9 years and 1.24 (1.15 to 1.33) among men aged 37-45 years for each interquartile (2.9 \u00b5g\/m\n                      <jats:sup>3<\/jats:sup>\n                      ) higher PM\n                      <jats:sub>2.5<\/jats:sub>\n                      after adjustment for sociodemographic variables and road traffic noise. PM\n                      <jats:sub>2.5<\/jats:sub>\n                      was not associated with infertility in women. Road traffic noise (Lden, most exposed facade of residence) was associated with a higher risk of infertility among women aged 35-45 years, with a hazard ratio of 1.14 (1.10 to 1.18) for each interquartile (10.2 dB) higher five year mean exposure. Noise was not associated with infertility among younger women (30-34.9 years). In men, road traffic noise was associated with higher risk of infertility in the 37-45 age group (1.06, 1.02 to 1.11), but not among those aged 30-36.9 years (0.93, 0.91 to 0.96).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      PM\n                      <jats:sub>2.5<\/jats:sub>\n                      was associated with a higher risk of an infertility diagnosis in men, whereas road traffic noise was associated with a higher risk of an infertility diagnosis in women older than 35 years, and potentially in men older than 37 years. If these results are confirmed in future studies, higher fertility could be added to the list of health benefits from regulating noise and air pollution.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmj-2024-080664","type":"journal-article","created":{"date-parts":[[2024,9,4]],"date-time":"2024-09-04T20:00:35Z","timestamp":1725480035000},"page":"e080664","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":42,"title":["Long term exposure to road traffic noise and air pollution and risk of infertility in men and women: nationwide Danish cohort study"],"prefix":"10.1136","volume":"386","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7302-4789","authenticated-orcid":false,"given":"Mette","family":"S\u00f8rensen","sequence":"first","affiliation":[{"name":"Work, Environment and Cancer, Danish Cancer Institute, Copenhagen, Denmark"},{"name":"Department of Natural Science and Environment, Roskilde University, Roskilde, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aslak Harbo","family":"Poulsen","sequence":"additional","affiliation":[{"name":"Work, Environment and Cancer, Danish Cancer Institute, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bugge","family":"N\u00f8hr","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, University Hospital of Herlev and Gentofte, Herlev, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jibran","family":"Khan","sequence":"additional","affiliation":[{"name":"Department of Environmental Science, Aarhus University, Roskilde, Denmark"},{"name":"Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Roskilde, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Ketzel","sequence":"additional","affiliation":[{"name":"Department of Environmental Science, Aarhus University, Roskilde, Denmark"},{"name":"Global Centre for Clean Air Research (GCARE), University of Surrey, Guildford, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00f8rgen","family":"Brandt","sequence":"additional","affiliation":[{"name":"Department of Environmental Science, Aarhus University, Roskilde, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ole","family":"Raaschou-Nielsen","sequence":"additional","affiliation":[{"name":"Work, Environment and Cancer, Danish Cancer Institute, Copenhagen, Denmark"},{"name":"Department of Environmental Science, Aarhus University, Roskilde, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allan","family":"Jensen","sequence":"additional","affiliation":[{"name":"Virus, Lifestyle and Genes, Danish Cancer Institute, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2024,9,4]]},"reference":[{"key":"2025110102502400000_386.sep04_3.e080664.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiochem.2018.03.012"},{"key":"2025110102502400000_386.sep04_3.e080664.2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1001356"},{"key":"2025110102502400000_386.sep04_3.e080664.3","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2009.09.009"},{"key":"2025110102502400000_386.sep04_3.e080664.4","unstructured":"European Society of Human Reproduction and Embryology. 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