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Eur J Epidemiol. 2017 May 26. doi: 10.1007/s10654-017-0261-z. [Epub ahead of print]
Pregnancy outcome in more than 5000 births to women with viral hepatitis: a population-based cohort study in Sweden.Stokkeland K1,2, Ludvigsson JF3,4,5, Hultcrantz R6,7, Ekbom A8, Höijer J9, Bottai M9, Stephansson O8,10.
Author information
1Department of Medicine, Visby Hospital, St Görans Str. 8, 621 84, Visby, Sweden. [email protected].2Department of Medicine, Gastroenterology and Hepatology Unit, Karolinska Institutet, Stockholm, Sweden. [email protected].3Department of Pediatrics, Örebro University Hospital, Örebro, Sweden.4Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.5Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, Nottingham, UK.6Department of Medicine, Gastroenterology and Hepatology Unit, Karolinska Institutet, Stockholm, Sweden.7Division of Hepatology, Karolinska Hospital, Stockholm, Sweden.8Department of Medicine, Solna, Clinical Epidemiology Unit, Karolinska Hospital and Institutet, Stockholm, Sweden.9Unit of Biostatistics, IMM, Karolinska Institutet, Stockholm, Sweden.10Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.
AbstractPrevious studies have shown inconsistent results with respect to hepatitis B (HBV), hepatitis C (HCV) and pregnancy outcome. The aim of this study was to investigate pregnancy outcome in women with HBV or HCV. In a nationwide cohort of births between 2001 and 2011 we investigated the risks of adverse pregnancy outcomes in 2990 births to women with HBV and 2056 births to women with HCV using data from Swedish healthcare registries. Births to women without HBV (n = 1090 979), and births without HCV (n = 1091 913) served as population controls. Crude and adjusted relative risks (aRR) were calculated using Poisson regression analysis. Women with HCV were more likely to smoke (46.7 vs. 8.0%) and to have alcohol dependence (18.9 vs. 1.3%) compared with population controls. Most women with HBV were born in non-Nordic countries (91.9%). Maternal HCV was associated with a decreased risk of preeclampsia (aRR: 0.39, 95% CI: 0.24-0.64), but an increased risk of preterm birth (aRR: 1.32, 95% CI: 1.08-1.60) and late neonatal death (7-27 days: aRR: 3.79, 95% CI: 1.07-13.39) Preterm birth were also more common in mothers with HBV, aRR: 1.21 (95% CI: 1.02-1.45). Both HBV and HCV are risk factors for preterm birth, while HCV seems to be associated with a decreased risk for preeclampsia. Future studies should corroborate these findings.
KEYWORDS: Late neonatal death; Preeclampsia; Pregnancy outcomes; Preterm birth
PMID:28550648DOI:10.1007/s10654-017-0261-z
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