Risk factors for perinatal mortality in Murmansk County, Russia: a registry-based study.
Factors contributing to perinatal mortality (PM) in Northwest Russia remain unclear. This study investigated possible associations between selected maternal and fetal characteristics and PM based on data from the population-based Murmansk County Birth Registry.



This study investigated possible associations between selected maternal and fetal characteristics and PM based on data from the population-based Murmansk County Birth Registry.



The study population consisted of all live- and stillbirths registered in the Murmansk County Birth Registry during 2006-2011 (n = 52,806). We excluded multiple births, births prior to 22 and after 45 completed weeks of gestation, infants with congenital malformations, and births with missing information regarding gestational age (a total of n = 3,666) and/or the studied characteristics (n = 2,356). Possible associations between maternal socio-demographic and lifestyle characteristics, maternal pre-pregnancy characteristics, pregnancy characteristics, and PM were studied by multivariable logistic regression. Crude and adjusted odds ratios with 95% confidence intervals were calculated.



Of the 49,140 births eligible for prevalence analysis, 338 were identified as perinatal deaths (6.9 per 1,000 births). After adjustment for other factors, maternal low education level, prior preterm delivery, spontaneous or induced abortions, antepartum hemorrhage, antenatally detected or suspected fetal growth retardation, and alcohol abuse during pregnancy all significantly increased the risk of PM. We observed a higher risk of PM in unmarried women, as well as overweight or obese mothers. Maternal underweight reduced the risk of PM.



Our results suggest that both social and medical factors are important correlates of perinatal mortality in Northwest Russia.
a Department of Community Medicine, Faculty of Health Sciences , UiT The Arctic University of Norway , Tromsø , Norway.|b International School of Public Health , Northern State Medical University , Arkhangelsk , Russia.
Anna A
AA
Usynina
b International School of Public Health , Northern State Medical University , Arkhangelsk , Russia.|c Department of Preventive Medicine , International Kazakh-Turkish University , Turkestan , Kazakhstan.|d Department of International Public Health , Norwegian Institute of Public Health , Oslo , Norway.|e Department of Public Health, Hygiene and Bioethics, Institute of Medicine , North-Eastern Federal University , Yakutsk , Russia.
Andrej M
AM
Grjibovski
a Department of Community Medicine, Faculty of Health Sciences , UiT The Arctic University of Norway , Tromsø , Norway.|f Department of Biomedicine and Public Health, School of Health and Education , University of Skövde , Skövde , Sweden.|g Department of Internal Medicine and Clinical Nutrition, Institute of Medicine , Sahlgrenska Academy at University of Gothenburg , Gothenburg , Sweden.
Alexandra
A
Krettek
a Department of Community Medicine, Faculty of Health Sciences , UiT The Arctic University of Norway , Tromsø , Norway.|h Department of Public Health, Faculty of Health Sciences , University of Pretoria , Pretoria , South Africa.
Jon Øyvind
JØ
Odland
a Department of Community Medicine, Faculty of Health Sciences , UiT The Arctic University of Norway , Tromsø , Norway.|b International School of Public Health , Northern State Medical University , Arkhangelsk , Russia.
Alexander V
AV
Kudryavtsev
a Department of Community Medicine, Faculty of Health Sciences , UiT The Arctic University of Norway , Tromsø , Norway.
Erik Eik
EE
Anda
D000293:Adolescent; D000328:Adult; D002423:Cause of Death / Q000639:trends*; D005260:Female; D005544:Forecasting; D005865:Gestational Age; D006801:Humans; D007223:Infant; D007226:Infant Mortality / Q000639:trends*; D007231:Infant, Newborn; D016015:Logistic Models; D008297:Male; D009026:Mortality / Q000639:trends*; D016017:Odds Ratio; D054238:Perinatal Mortality / Q000639:trends*; D011247:Pregnancy; D047928:Premature Birth / Q000453:epidemiology; D012042:Registries / Q000706:statistics & numerical data*; D012307:Risk Factors; D012426:Russia / Q000453:epidemiology; D055815:Young Adult
Birth registry; Northwest Russia; perinatal death