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Abstract
Background
Despite concerns about worsening pregnancy outcomes resulting from healthcare restrictions, economic difficulties and increased stress during the COVID-19 pandemic, preterm birth (PTB) rates declined in some countries in 2020, while stillbirth rates appeared stable. Like other shocks, the pandemic may have exacerbated existing socioeconomic disparities in pregnancy, but this remains to be established. Our objective was to investigate changes in PTB and stillbirth by socioeconomic status (SES) in European countries.
Methods
The Euro-Peristat network implemented this study within the Population Health Information Research Infrastructure (PHIRI) project. A common data model was developed to collect aggregated tables from routine birth data for 2015–2020. SES was based on mother’s educational level or area-level deprivation/maternal occupation if education was unavailable and harmonized into low, medium and high SES. Country-specific relative risks (RRs) of PTB and stillbirth for March to December 2020, adjusted for linear trends from 2015 to 2019, by SES group were pooled using random effects meta-analysis.
Results
Twenty-one countries provided data on perinatal outcomes by SES. PTB declined by an average 4% in 2020 {pooled RR: 0.96 [95% confidence intervals (CIs): 0.94–0.97]} with similar estimates across all SES groups. Stillbirths rose by 5% [RR: 1.05 (95% CI: 0.99–1.10)], with increases of between 3 and 6% across the three SES groups, with overlapping confidence limits.
Conclusions
PTB decreases were similar regardless of SES group, while stillbirth rates rose without marked differences between groups.
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1 Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOpé), Centre for Research in Epidemiology and Statistics (CRESS), INSERM, INRAE, Paris Cité University , Paris, France
2 EPIUnit, University of Porto , Porto, Portugal
3 The Netherlands Perinatal Registry (Perined) , Utrecht, Netherlands
4 National Health Information Center , Bratislava, Slovakia
5 Division of Public Health, Croatian Institute of Public Health , Zagreb, Croatia
6 Division of Mental and Physical Health, Norwegian Institute of Public Health , Bergen, Norway
7 Division of Obstetrics and Feto-Maternal Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna , Vienna, Austria
8 Department for Research, Studies, Assessment and Statistics (DREES), French Ministry of Health , Paris, France
9 National Obstetric Information System, Directorate for Health Information and Research , Pieta, Malta
10 Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare , Helsinki, Finland
11 Social Data Department, Institute for Quality Assurance and Transparency in Healthcare (IQTIG) , Berlin, Germany
12 Health Statistics Department, Health Information Centre, Institute of Hygiene , Vilnius, Lithuania
13 Department of Evaluation and Analysis, Epidemiology and Methodological Support Unit, Karolinska Institute , Stockholm, Sweden
14 Health Monitoring Unit, Ministry of Health , Nicosia, Cyprus
15 Directorate for Social Statistics and Welfare, Italian Statistical Institute (ISTAT) , Rome, Italy
16 Information Services Division, Public Health Scotland , Edinburgh, UK
17 Department of Public Health, University of Copenhagen , Copenhagen, Denmark
18 Federal Statistical Office (FSO) , Neuchâtel, Switzerland
19 Estonian Institute for Population Studies, Tallinn University , Tallinn, Estonia
20 The National Perinatal Reporting System, Health Pricing Office , Dublin, Ireland
21 Department of Epidemiology and Biostatistics, National Research Institute of Mother and Child , Warsaw, Poland
22 Institute for the Care of Mother and Child , Prague, Czechia
23 Department of Obstetrics & Gynecology—Research Unit, University Medical Centre , Ljubljana, Slovenia
24 Department of Epidemiology and Statistics, Directorate of Health , Luxembourg, Luxembourg
25 The Centre for Disease Prevention and Control of Latvia , Riga, Latvia
26 Public Health General Directorate, Valencia Regional Public Health Authority , Valencia, Spain
27 Department of Health Sciences, College of Life Sciences, University of Leicester , Leicester, UK