{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T19:07:22Z","timestamp":1778872042579,"version":"3.51.4"},"reference-count":30,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,5,17]],"date-time":"2022-05-17T00:00:00Z","timestamp":1652745600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003921","name":"Department of Health, Australian Government","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003921","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Aust NZ J Obst Gynaeco"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Preventative strategies for preterm birth are lacking. Recent evidence proposed COVID\u201019 lockdowns may have contributed to changes in preterm birth.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>To determine the prevalence of preterm birth and birth outcomes during and after the COVID\u201019 lockdown at the Sunshine Coast University Hospital and the overall state of Queensland, Australia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Retrospective cohort analysis of all births in Queensland including the Sunshine Coast University Hospital, during two epochs, April 1\u2013May 31, 2020 (lockdown) and June 1\u2013July 31, 2020 (post\u2010lockdown), compared to antecedent calendar\u2010matched periods in 2018\u20132019. Prevalence of preterm birth, stillbirth, and late terminations were examined.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      There were 64\u2009989 births in Queensland from April to July 2018\u20132020. At the Sunshine Coast University Hospital, there was a significantly higher chance of birth at term during both lockdown (odds ratio (OR) 1.81, 95% CI 1.17, 2.79;\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u20090.007) and post\u2010lockdown (OR 2.01, 95% CI 1.27, 3.18;\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u20090.003). At the same centre, prevalence of preterm birth was 5.5% (30\/547) during lockdown, compared to 9.1% (100\/1095) in previous years, a 40.0% relative reduction (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u20090.016). At this centre during lockdown, emergency caesareans concurrently decreased (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0&lt;\u20090.01) and instrumental vaginal births increased (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0&lt;\u20090.01). In Queensland overall, there was a nonsignificant decrease in the prevalence of preterm birth during lockdown.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>There is a link between lockdown and a reduction in the prevalence of preterm birth on the Sunshine Coast. The cause is speculative at present, although increased influenza vaccination rates, decreased transmission of infections, and improved air quality may have been favourable in reducing preterm birth. Further research is needed to determine a causal link.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ajo.13538","type":"journal-article","created":{"date-parts":[[2022,5,18]],"date-time":"2022-05-18T01:45:18Z","timestamp":1652838318000},"page":"851-858","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Reduction in preterm birth rates during and after the\n                    <scp>COVID<\/scp>\n                    \u201019 lockdown in Queensland Australia"],"prefix":"10.1111","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0507-3105","authenticated-orcid":false,"given":"Brittany","family":"Jasper","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynaecology Sunshine Coast University Hospital  Sunshine Coast Queensland Australia"},{"name":"School of Medicine Griffith University  Brisbane Queensland Australia"},{"name":"North West Anglia Healthcare NHS Trust  Cambridgeshire UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tereza","family":"Stillerova","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology Sunshine Coast University Hospital  Sunshine Coast Queensland Australia"},{"name":"School of Medicine Griffith University  Brisbane Queensland Australia"},{"name":"Department of Obstetrics and Gynaecology Cairns Hospital  Cairns Queensland Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher","family":"Anstey","sequence":"additional","affiliation":[{"name":"School of Medicine Griffith University  Brisbane Queensland Australia"},{"name":"Faculty of Medicine University of Queensland  Brisbane Queensland Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Edward","family":"Weaver","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology Sunshine Coast University Hospital  Sunshine Coast Queensland Australia"},{"name":"School of Medicine Griffith University  Brisbane Queensland Australia"},{"name":"Faculty of Medicine University of Queensland  Brisbane Queensland Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,5,17]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"Levels and trends in child mortality: report 2017 Estimates Developed by the UN Inter\u2010Agency Group for Child Mortality Estimation [Internet].New York:United Nations Children's Fund;2017[cited Nov 16 2020]. Available from:https:\/\/reliefweb.int\/sites\/reliefweb.int\/files\/resources\/Child_Mortality_Report_2017.pdf"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1596\/33738"},{"key":"e_1_2_9_4_1","unstructured":"The Australian Broadcasting Corporation.Queensland's coronavirus timeline: how COVID\u201019 cases spread around the state [Internet]. Sydney: ABC News; September 25 2020[cited Oct 9 2020]. Available from:http:\/\/www.abc.net.au\/news\/2020\u201003\u201028\/coronavirus\u2010timeline\u2010queensland\u2010tracking\u2010spread\/12077602?nw=0"},{"key":"e_1_2_9_5_1","unstructured":"Queensland Clinical Guidelines Maternity care for mothers and babies during the COVID\u201019 pandemic. Guideline No. MN20.63\u2010V5\u2010R25. Brisbane: Queensland Health; March 26 2020. [cited Jul 8 2020]. Available from:https:\/\/www.health.qld.gov.au\/__data\/assets\/pdf_file\/0033\/947148\/g\u2010covid\u201019.pdf"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000004302"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/ajo.13406"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2468\u20102667(20)30223\u20101"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1136\/archdischild\u20102020\u2010320682"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1136\/archdischild\u20102020\u2010319990"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2020.12746"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1136\/archdischild\u20102020\u2010320521"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0000000000004236"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2020.10.017"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjgh\u20102020\u2010003075"},{"key":"e_1_2_9_16_1","volume-title":"Population Health Status Profile [Internet]","author":"Chief Health Officer Queensland","year":"2020"},{"key":"e_1_2_9_17_1","volume-title":"Perinatal data collection 2019 [Internet]","author":"Queensland Health","year":"2020"},{"key":"e_1_2_9_18_1","volume-title":"The Health of Queenslanders 2020: Report of the Chief Health Officer Queensland [Internet]","author":"Queensland Government","year":"2020"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140\u20106736(08)60074\u20104"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41562\u2010021\u201001079\u20108"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2016.11.1037"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph18073528"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamanetworkopen.2020.8243"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.52922\/sb04718"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1111\/1471\u20100528.14143"},{"key":"e_1_2_9_26_1","unstructured":"Queensland Government Queensland Health.Influenza vaccination guidelines. Brisbane: Queensland Health; March 23 2021 [cited May 12 2021]. Available from:https:\/\/www.health.qld.gov.au\/clinical\u2010practice\/guidelines\u2010procedures\/diseases\u2010infection\/immunisation\/service\u2010providers\/influenza"},{"key":"e_1_2_9_27_1","unstructured":"Queensland Government Department of Health minister hunt. Record flu vaccines in 2020 to protect Australians [internet]. Canberra: Department of Health; 27 May 2020 [cited Sep 6 2020]. Available from:https:\/\/www.health.gov.au\/ministers\/the\u2010hon\u2010greg\u2010hunt\u2010mp\/media\/record\u2010flu\u2010vaccines\u2010in\u20102020\u2010to\u2010protect\u2010australians#:~:text=27May2020\u2010 Anadditionaltwomillionfluvaccineswillavailablefromthis fluvaccinesprovidedin2017"},{"key":"e_1_2_9_28_1","unstructured":"Australian Government National Notifiable Disease Surveillance SystemNumber of notifications of Influenza (laboratory confirmed) Australia [Internet]. Canberra: Department of Health; May 2021 [cited May 12 2021]. Available from:http:\/\/www9.health.gov.au\/cda\/source\/rpt_3.cfm"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2020.21369"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0253796"},{"key":"e_1_2_9_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.wsif.2021.102470"}],"container-title":["Australian and New Zealand Journal of Obstetrics and Gynaecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ajo.13538","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/ajo.13538","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ajo.13538","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,20]],"date-time":"2023-08-20T16:58:44Z","timestamp":1692550724000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1111\/ajo.13538"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,5,17]]},"references-count":30,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2022,12]]}},"alternative-id":["10.1111\/ajo.13538"],"URL":"https:\/\/doi.org\/10.1111\/ajo.13538","archive":["Portico"],"relation":{"has-preprint":[{"id-type":"doi","id":"10.1101\/2021.08.06.21261711","asserted-by":"object"}]},"ISSN":["0004-8666","1479-828X"],"issn-type":[{"value":"0004-8666","type":"print"},{"value":"1479-828X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,5,17]]},"assertion":[{"value":"2021-10-30","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-03-18","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-05-17","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}