{"id":6278,"date":"2022-05-25T12:13:00","date_gmt":"2022-05-25T10:13:00","guid":{"rendered":"https:\/\/fhu-premimpact.org\/?post_type=publication&#038;p=6278"},"modified":"2023-01-04T12:17:15","modified_gmt":"2023-01-04T11:17:15","slug":"decreases-in-preterm-birth-during-the-first-covid-19-lockdown-in-france-by-gestational-age-sub-groups-and-regional-covid-19-incidence","status":"publish","type":"publication","link":"https:\/\/fhu-premimpact.org\/en\/publications\/decreases-in-preterm-birth-during-the-first-covid-19-lockdown-in-france-by-gestational-age-sub-groups-and-regional-covid-19-incidence\/","title":{"rendered":"Decreases in preterm birth during the first COVID-19 lockdown in France by gestational age sub-groups and regional COVID-19 incidence"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Abstract<\/h2>\n\n\n\n<p><strong>Purpose:<\/strong> Given contradictory evidence about preterm birth (PTB) decreases during COVID-19 lockdowns, we investigate PTB rates during France&#8217;s strict nationwide lockdown (March 17, 2020 to May 10, 2020).<\/p>\n\n\n\n<p><strong>Methods:<\/strong> This is an interrupted time series analysis using data on maternal delivery hospitalizations in France from January 01, 2016 to July 31, 2020 (3,448,286 singleton births \u226522 weeks&#8217; gestational age (GA)). Outcomes were weekly PTB rates (overall and by GA sub-group: &lt;28, 28-31, 32-34, 35-36 weeks), stillbirth and cesarean birth. We estimate odds ratios (OR) using the lockdown period as exposed and other weeks as unexposed, nationally and for districts grouped by COVID-19 incidence.<\/p>\n\n\n\n<p><strong>Results:<\/strong> Of 96,076 singleton live births during the lockdown, 4,799 were preterm. PTB rates were 6% (OR: 0.94, 95% CI: 0.90-0.98) lower than expected over this period. This decrease occurred among births 35-36 weeks&#8217; GA (OR: 0.92, 95% CI: 0.87-0.98), with no detectable reductions for other GA groups. Cesarean and stillbirth rates were stable. Larger differences were observed in districts with low (OR: 0.92, 95% CI 0.87-0.98) versus moderate\/high COVID-19 incidence (OR: 0.97, 95% CI 0.92-1.03).<\/p>\n\n\n\n<p><strong>Conclusions:<\/strong> Late preterm births decreased during France&#8217;s first lockdown without concurrent change in cesareans and stillbirths. Effects were not more pronounced in moderate\/high-COVID-19 districts, contradicting expectations if healthcare disruption were a principal cause.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ann Epidemiol. 2022 Aug;72:74-81.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-6278","publication","type-publication","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Decreases in preterm birth during the first COVID-19 lockdown in France by gestational age sub-groups and regional COVID-19 incidence - FHU Prem&#039;IMPACT<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fhu-premimpact.org\/en\/publications\/decreases-in-preterm-birth-during-the-first-covid-19-lockdown-in-france-by-gestational-age-sub-groups-and-regional-covid-19-incidence\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Decreases in preterm birth during the first COVID-19 lockdown in France by gestational age sub-groups and regional COVID-19 incidence - 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