https://m2.mtmt.hu/ hun 2026-09-23 01:41 JournalArticle 33668918 VALIDATED true 0 false 2026-08-19T21:20:43.138+0000 2023-07-14T06:17:10.466+0000 2023-02-28T08:38:48.574+0000 true 10045296 Cseh Éva /api/admin/10045296 Admin true 10045296 2023-11-10T10:16:15.356+0000 2023-11-10T10:16:15.356+0000 2023-07-14T06:17:10.482+0000 true 10062250 Molnár-Taga Márta /api/admin/10062250 Admin true 10062250 true false true 24 24 /api/publicationtype/24 PublicationType 1 true 24 JournalArticle true 10000359 Study Group true 24 24 /api/publicationtype/24 PublicationType 1 true 24 JournalArticle /api/subtype/10000359 Sokszerzős vagy csoportos szerzőségű szakcikk SubType 104 true 10000359 true 1 /api/category/1 Category true 1 Calvert, Clara Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries true true /api/journal/10070521 REVIEWED true false 10070521 false 10070521 true 2397-3374 2397-3374 Journal FOREIGN 7 4 529 544 529 29 2023 Preterm birth (PTB) is the leading cause of infant mortality worldwide. Changes in PTB rates, ranging from −90% to +30%, were reported in many countries following early COVID-19 pandemic response measures (‘lockdowns’). It is unclear whether this variation reflects real differences in lockdown impacts, or perhaps differences in stillbirth rates and/or study designs. Here we present interrupted time series and meta-analyses using harmonized data from 52 million births in 26 countries, 18 of which had representative population-based data, with overall PTB rates ranging from 6% to 12% and stillbirth ranging from 2.5 to 10.5 per 1,000 births. We show small reductions in PTB in the first (odds ratio 0.96, 95% confidence interval 0.95–0.98, P value <0.0001), second (0.96, 0.92–0.99, 0.03) and third (0.97, 0.94–1.00, 0.09) months of lockdown, but not in the fourth month of lockdown (0.99, 0.96–1.01, 0.34), although there were some between-country differences after the first month. For high-income countries in this study, we did not observe an association between lockdown and stillbirths in the second (1.00, 0.88–1.14, 0.98), third (0.99, 0.88–1.12, 0.89) and fourth (1.01, 0.87–1.18, 0.86) months of lockdown, although we have imprecise estimates due to stillbirths being a relatively rare event. We did, however, find evidence of increased risk of stillbirth in the first month of lockdown in high-income countries (1.14, 1.02–1.29, 0.02) and, in Brazil, we found evidence for an association between lockdown and stillbirth in the second (1.09, 1.03–1.15, 0.002), third (1.10, 1.03–1.17, 0.003) and fourth (1.12, 1.05–1.19, <0.001) months of lockdown. With an estimated 14.8 million PTB annually worldwide, the modest reductions observed during early pandemic lockdowns translate into large numbers of PTB averted globally and warrant further research into causal pathways. true true 2023 true true true false true false GOLD 2026-08-19 true https://doi.org/10.1038/s41562-023-01522-y 101 0 101 76 1 101 100 94 101 101 101 76 76 76 25 0 101 76 101 76 0 0 0 Folyóiratcikk Journal Article 24 101 Könyvrészlet Chapter in Book 25 0 Könyv Book 23 0 Egyéb konferenciaközlemény Conference paper 31 0 Egyéb konferenciakötet Conference proceedings 32 0 Oltalmi formák Protection forms 26 0 Disszertáció Thesis 28 0 Egyéb Miscellaneous 29 0 Alkotás Achievement 22 0 Kutatási adat Research data 33 0 Folyóiratcikk Journal Article 24 0 0 0 Könyvrészlet Chapter in Book 25 0 0 0 Könyv Book 23 0 0 0 Egyéb konferenciaközlemény Conference paper 31 0 0 0 Egyéb konferenciakötet Conference proceedings 32 0 0 0 Oltalmi formák Protection forms 26 0 0 0 Disszertáció Thesis 28 0 0 0 Egyéb Miscellaneous 29 0 0 0 Alkotás Achievement 22 0 0 0 Kutatási adat Research data 33 0 0 0 2023 0 18 13 18 13 2024 0 41 31 41 31 2025 0 27 18 27 18 2026 0 15 14 15 14 D1 A nemzetközi false false false false 2023-05-29T07:38:56.893+0000 I. 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(<span class="authorship-author-name">Szabó Miklós</span> <span class="authorAux-mtmt"> gyermekgyógyászat, neonatológia</span>) </a> </span> <span class="author-affil"><span title="Semmelweis Egyetem">SE</span>/<span title="Általános Orvostudományi Kar">AOK</span>/<span title="Klinikum">K</span>/I. Sz. Gyermekgyógyászati Klinika; <span title="Semmelweis Egyetem">SE</span>/<span title="Általános Orvostudományi Kar">AOK</span>/<span title="Klinikum">K</span>/<span title="Gyermekgyógyászati Klinika">GYGYK</span>/Neonatológiai Tanszéki Csoport</span> ;&nbsp;&nbsp;&nbsp; et al. (115) </div> <div><a target="_blank" href="/api/publication/33668918?labelLang=hun">Összes szerző</a></div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;33668918" target="_blank">Changes in preterm birth and stillbirth during COVID-19 lockdowns in 26 countries</a></div> <div> <span class="journal-title">NATURE HUMAN BEHAVIOUR</span> <span class="journal-issn">(<a target="_blank" href="https://portal.issn.org/resource/ISSN/2397-3374">2397-3374</a> <a target="_blank" href="https://portal.issn.org/resource/ISSN/2397-3374">2397-3374</a>)</span>: <span class="journal-volume">7</span> <span class="journal-issue">4</span> <span class="page"> pp 529-544 </span> <span class="year">(2023)</span> </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Nyelv: Angol | </span> <span class="identifiers"> <span class="id identifier oa_GOLD" title=" Gold "> <a style="color:blue" title="10.1038/s41562-023-01522-y" target="_blank" href="https://doi.org/10.1038/s41562-023-01522-y"> DOI </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:black" title="000989731800001" target="_blank" href="https://www.webofscience.com/wos/woscc/full-record/000989731800001"> WoS </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="85149020073" target="_blank" href="http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85149020073"> Scopus </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="36849590" target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=36849590&dopt=Abstract"> PubMed </a> </span> </span> <OnlyViewableByAuthor><div class="ratings"> <div class="journal-subject">Folyóirat szakterülete: Scopus - Behavioral Neuroscience&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;D1</div> <div class="journal-subject">Folyóirat szakterülete: Scopus - Experimental and Cognitive Psychology&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;D1</div> <div class="journal-subject">Folyóirat szakterülete: Scopus - Social Psychology&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;D1</div> <div class="journal-subject">Regionális Tudományok Bizottsága IXGJO RTB [1901-]&nbsp;&nbsp;&nbsp;A nemzetközi</div> <div class="journal-subject">Szociológiai Tudományos Bizottság IXGJO SZTB [1901-]&nbsp;&nbsp;&nbsp;A nemzetközi</div> </div></OnlyViewableByAuthor> <div class="publication-citation" style="margin-left: 0.5cm;"> <span title="Nyilvános idézőközlemények összesen, említések nélkül" class="citingPub-count">Nyilvános idéző összesen: 101</span> | Független: 76 | Függő: 25 | Nem jelölt: 0 | WoS jelölt: 94 | Scopus jelölt:&nbsp;101 | WoS/Scopus jelölt:&nbsp;101 | DOI jelölt:&nbsp;100 </div> <div class="mtid"><span class="long-pub-mtid">Közlemény: 33668918</span> | <span class="status-data status-VALIDATED"> Egyeztetett </span> Forrás | <span class="type-subtype">Folyóiratcikk ( Sokszerzős vagy csoportos szerzőségű szakcikk ) </span> | <span class="pub-category">Tudományos</span> | <span class="publication-sourceOfData">kézi felvitel</span> </div> <div class="lastModified">Utolsó módosítás: 2023.07.14. 08:17 Molnár-Taga Márta (SE 4-es admin) </div> </div></div>