Given differences in preterm birth across populations, the authors examined a diverse urban cohort in the US to determine if preterm birth, spontaneous preterm birth, medically indicated preterm birth, and stillbirth rates have changed during the SARS-CoV-2 pandemic. This study did not detect significant changes in preterm or stillbirth rates during the SARS-CoV-2 pandemic in a racially diverse urban cohort from 2 Philadelphia hospitals. Although these data allow for disaggregation of spontaneous and medically indicated preterm births, no differences in overall rates of these phenotypes were detected.


  1. Khoury  R, Bernstein  PS, Debolt  C,  et al.  Characteristics and outcomes of 241 births to women with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection at five New York City medical centers.   Obstet Gynecol. 2020;136(2):273-282.

  2. Hedermann  G, Hedley  PL, Bækvad-Hansen  M,  et al.  Danish premature birth rates during the COVID-19 lockdown.   Arch Dis Child Fetal Neonatal Ed. Published online August 11, 2020.

  3. Martin  JA, Hamilton  BE, Osterman  MJK, Driscoll  AK.  Births: final data for 2018.   Natl Vital Stat Rep. 2019;68(13):1-47.


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