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Interrupted-time-series analysis of the immediate impact of COVID-19 mitigation measures on preterm birth in China

Author

Listed:
  • Yanxia Xie

    (West China Second University Hospital, Sichuan University)

  • Yi Mu

    (West China Second University Hospital, Sichuan University)

  • Peiran Chen

    (West China Second University Hospital, Sichuan University)

  • Zheng Liu

    (West China Second University Hospital, Sichuan University)

  • Yanping Wang

    (West China Second University Hospital, Sichuan University
    West China Second University Hospital, Sichuan University)

  • Qi Li

    (West China Second University Hospital, Sichuan University)

  • Mingrong Li

    (West China Second University Hospital, Sichuan University)

  • Juan Liang

    (West China Second University Hospital, Sichuan University
    West China Second University Hospital, Sichuan University)

  • Jun Zhu

    (West China Second University Hospital, Sichuan University
    Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education)

Abstract

Preliminary evidence from China and other countries has suggested that coronavirus disease 2019 (COVID-19) mitigation measures have caused a decline in preterm births, but evidence is conflicting. Utilising a national representative data of 11,714,947 pregnant women in China, we explored the immediate changes in preterm birth rates during the COVID-19 mitigation period using an interrupted-time-series analysis. We defined the period prior to February 1, 2020 as the baseline, followed by the COVID-19 mitigation stage. In the first month of the COVID-19 mitigation, a significant absolute decrease in preterm birth rates of 0.68% (95%CI:−1.10% to −0.26%) in singleton, and of 2.80% (95%CI:−4.51% to −1.09%) in multiple births was noted. This immediate decline in Wuhan was greater than that at the national level among singleton births [−2.21% (95%CI:−4.09% to −0.34% vs. −0.68%)]. Here we report an immediate impact of COVID-19 mitigation measures on preterm birth in China.

Suggested Citation

  • Yanxia Xie & Yi Mu & Peiran Chen & Zheng Liu & Yanping Wang & Qi Li & Mingrong Li & Juan Liang & Jun Zhu, 2022. "Interrupted-time-series analysis of the immediate impact of COVID-19 mitigation measures on preterm birth in China," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32814-y
    DOI: 10.1038/s41467-022-32814-y
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    References listed on IDEAS

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    1. Tao Xiong & Peiran Chen & Yi Mu & Xiaohong Li & Baofeng Di & Jierui Li & Yi Qu & Jun Tang & Juan Liang & Dezhi Mu, 2020. "Association between ambient temperature and hypertensive disorders in pregnancy in China," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    2. MacDorman, M.F. & Declercq, E. & Zhang, J., 2010. "Obstetrical intervention and the singleton preterm birth rate in the United States from 1991-2006," American Journal of Public Health, American Public Health Association, vol. 100(11), pages 2241-2247.
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