Maternal Risk Factors for Preterm Birth in Murmansk County, Russia: A Registry-Based Study
Permanent link
https://hdl.handle.net/10037/10490Date
2016Type
Journal articleTidsskriftartikkel
Peer reviewed
Author
Usynina, Anna Alexandrovna; Postoev, Vitaly Alexandrovich; Grjibovski, Andrej; Krettek, Alexandra; Nieboer, Evert; Odland, Jon Øyvind; Anda, Erik EikAbstract
Background: Globally, about 11% of all liveborn infants are preterm. To date, data on prevalence and risk factors of
preterm birth (PTB) in Russia are limited. The aims of this study were to estimate the prevalence of PTB in
Murmansk County, Northwestern Russia and to investigate associations between PTB and selected maternal
factors using the Murmansk County Birth Registry.
Methods: We conducted a registry-based study of 52 806 births (2006–2011). In total, 51 156 births were included in
the prevalence analysis, of which 3546 were PTBs. Odds ratios with 95% confidence intervals of moderate-to-late
PTB, very PTB and extremely PTB for a range of maternal characteristics were estimated using multinomial
logistic regression, adjusting for potential confounders.
Results: The overall prevalence of PTB in Murmansk County was 6.9%. Unmarried status, prior PTBs, spontaneous
and induced abortions were strongly associated with PTB at any gestational age. Maternal low educational level
increased the risk of extremely and moderate-to-late PTB. Young (<18 years) or older (≥35 years) mothers,
graduates of vocational schools, underweight, overweight/obese mothers, and smokers were at higher risk of
moderate-to-late PTB. Secondary education, alcohol abuse, diabetes mellitus, or gestational diabetes were strongly
associated with moderate-to-late and very PTB.
Conclusions: The observed prevalence of PTB (6.9%) in Murmansk County, Russia was comparable with data on
live PTB from European countries. Adverse prior pregnancy outcomes, maternal low educational level, unmarried
status, alcohol abuse, and diabetes mellitus or gestational diabetes were the most common risk factors for PTB.
Description
Submitted manuscript version. Published version at http://doi.org/10.1111/ppe.12304.
Publisher
WileyCitation
Usynina AA, Postoev VA, Grjibovski A, Krettek AJ, Nieboer E, Odland j, Anda EE. Maternal Risk Factors for Preterm Birth in Murmansk County, Russia: A Registry-Based Study. Paediatric and Perinatal Epidemiology. 2016;30(5):462-472Metadata
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