Preterm birth rates among twins during the Danish COVID-19 lockdown and when restrictions were relaxed

Paula L Hedley^{1

2}, Marie Baekvad-Hansen^{1

3}, Gitte Hedermann^{1

4}, Henrik Hjalgrim^{5

6

7}, David M Hougaard^{1

3}, Mads Melbye^{7

8

9}, Morten Breindahl¹⁰, Lone Krebs^{8

11}, Anders Hviid^{5

12}, Ulrik Lausten-Thomsen¹⁰, Michael Christiansen^{1

13}

Affiliations

¹ Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark.
² Brazen Bio, Los Angeles, California, USA.
³ Danish Center for Neonatal Screening, Statens Serum Institut, Copenhagen, Denmark.
⁴ Department of Obstetrics and Gynecology, Copenhagen University Hospital, Copenhagen, Denmark.
⁵ Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.
⁶ Department of Haematology, Copenhagen University Hospital, Copenhagen, Denmark.
⁷ Danish Cancer Society, Copenhagen, Denmark.
⁸ Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
⁹ Department of Medicine, Stanford University School of Medicine, Stanford, California, USA.
¹⁰ Department of Neonatology, Copenhagen University Hospital, Copenhagen, Denmark.
¹¹ Department of Obstetrics and Gynecology, Copenhagen University Hospital, Amager and Hvidovre Hospital, Copenhagen, Denmark.
¹² Department of Drug Development and Clinical Pharmacology, Pharmacovigilance Research Center, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
¹³ Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.

Paula L Hedley et al. Acta Paediatr. 2023 Feb.

. 2023 Feb;112(2):298-300.

doi: 10.1111/apa.16583. Epub 2022 Nov 4.

¹ Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark.
² Brazen Bio, Los Angeles, California, USA.
³ Danish Center for Neonatal Screening, Statens Serum Institut, Copenhagen, Denmark.
⁴ Department of Obstetrics and Gynecology, Copenhagen University Hospital, Copenhagen, Denmark.
⁵ Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.
⁶ Department of Haematology, Copenhagen University Hospital, Copenhagen, Denmark.
⁷ Danish Cancer Society, Copenhagen, Denmark.
⁸ Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
⁹ Department of Medicine, Stanford University School of Medicine, Stanford, California, USA.
¹⁰ Department of Neonatology, Copenhagen University Hospital, Copenhagen, Denmark.
¹¹ Department of Obstetrics and Gynecology, Copenhagen University Hospital, Amager and Hvidovre Hospital, Copenhagen, Denmark.
¹² Department of Drug Development and Clinical Pharmacology, Pharmacovigilance Research Center, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
¹³ Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.

No abstract available

Conflict of interest statement

Authors have no conflicts of interest to declare.

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