Perinatal outcomes in Finnish twins : a retrospective study

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http://hdl.handle.net/10138/309791

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Rissanen , A-R S , Jernman , R M , Gissler , M , Nupponen , I K & Nuutila , M E 2019 , ' Perinatal outcomes in Finnish twins : a retrospective study ' , BMC Pregnancy and Childbirth , vol. 20 , no. 1 , 2 . https://doi.org/10.1186/s12884-019-2670-3

Title: Perinatal outcomes in Finnish twins : a retrospective study
Author: Rissanen, Annu-Riikka Susanna; Jernman, Riina Maria; Gissler, Mika; Nupponen, Irmeli Katriina; Nuutila, Mika Erkki
Contributor: University of Helsinki, Department of Obstetrics and Gynecology
University of Helsinki, Department of Obstetrics and Gynecology
University of Helsinki, HUS Children and Adolescents
University of Helsinki, HUS Gynecology and Obstetrics
Date: 2019-12-31
Language: eng
Number of pages: 8
Belongs to series: BMC Pregnancy and Childbirth
ISSN: 1471-2393
URI: http://hdl.handle.net/10138/309791
Abstract: Background To establish the changes in perinatal morbidity and mortality in twin pregnancies in Finland, a retrospective register research was conducted. Our extensive data from a 28-year study period provide important information on the outcome of twin pregnancies in Finland that has previously not been reported to this extent. Methods All 23,498 twin pregnancies with 46,996 children born in Finland during 1987-2014 were included in the study. Data were gathered from the Medical Birth Register and the Hospital Discharge Register (Finnish Institute for Health and Welfare, Finland) regarding perinatal mortality (PNM) and morbidity. For statistical analysis, binomial regression analysis and crosstabs were performed. The results are expressed in means, percentages and ranges with comparison to singletons when appropriate. Odds ratios from binomial regression analysis are reported. A p-value Results There were 46,363 liveborn and 633 stillborn twins in Finland during 1987-2014. Perinatal mortality decreased markedly, from 45.1 to 6.5 per 1000 for twin A and from 54.1 to 11.9 per 1000 for twin B during the study period. Yet, the PNM difference between twin A and B remained. Early neonatal mortality did not differ between twins, but has decreased in both. Asphyxia, respiratory distress syndrome, need for antibiotics and Neonatal Intensive Care Unit (NICU) stay were markedly more common in twin B. Conclusions In Finland, PNM and early neonatal mortality in twins decreased significantly during 1987-2014 and are nowadays very low. However, twin B still faces more complications. The outline provided may be used to further improve the monitoring and thus perinatal outcome of twins, especially twin B.
Subject: Twins
Perinatal mortality
Pregnancy
multiple pregnancy
high-risk
Neonatal mortality
PRETERM BIRTH
MULTIPLE PREGNANCY
DELIVERY
MORTALITY
MORBIDITY
RATES
3123 Gynaecology and paediatrics
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