Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study
Abstract Background International studies on the association between maternal body mass index (BMI) and spontaneous preterm birth (PTB) yield controversial results warranting large studies from other settings. The aim of this article was to study association between maternal early pregnancy BMI and...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
BioMed Central Ltd.
2014
|
Subjects: | |
Online Access: | http://www.biomedcentral.com/1471-2393/14/303 |
id |
ftbiomed:oai:biomedcentral.com:1471-2393-14-303 |
---|---|
record_format |
openpolar |
spelling |
ftbiomed:oai:biomedcentral.com:1471-2393-14-303 2023-05-15T17:46:04+02:00 Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study Sharashova, Ekaterina E Anda, Erik E Grjibovski, Andrej M 2014-09-04 http://www.biomedcentral.com/1471-2393/14/303 en eng BioMed Central Ltd. http://www.biomedcentral.com/1471-2393/14/303 Copyright 2014 Sharashova et al.; licensee BioMed Central Ltd. BMI Obesity Preterm birth Russia Research article 2014 ftbiomed 2014-09-14T00:40:19Z Abstract Background International studies on the association between maternal body mass index (BMI) and spontaneous preterm birth (PTB) yield controversial results warranting large studies from other settings. The aim of this article was to study association between maternal early pregnancy BMI and the risk of spontaneous PTB in Murmansk County (MC), Northwest Russia. Methods This is a registry-based cohort study. All women with singleton pregnancies registered at antenatal clinics during the first 12 weeks of gestation and who delivered in MC between January, 1 st 2006 and December, 31 st 2011 comprised the study base (n = 29,709). All women were categorized by BMI into four groups: underweight (<18.5 kg/m 2 ), normal (18.5–24.9 kg/m 2 ), overweight (25.0–29.9 kg/m 2 ), and obese (≥30.0 kg/m 2 ). Multivariable logistic regression was used to study associations between maternal BMI and PTB (<37 weeks) and very preterm birth (VPTB) (<32 weeks) adjusted for socio-economic factors, biological and lifestyle characteristics. Results The prevalence of underweight, overweight and obesity were 7.1% (95% CI: 6.8-7.4), 18.3% (95% CI: 17.8-18.7) and 7.1% (95% CI: 6.8-7.4), respectively. Altogether, 5.5% (95% CI: 5.3-5.8) of the births were PTB and 0.8% (95% CI: 0.7-0.9) were VPTB. After adjustment, both underweight (OR = 1.25, 95% CI: 1.03-1.50), overweight (OR = 1.10, 95% CI: 0.97-1.26) and obese (OR = 1.31, 95% CI: 1.08-1.57) women were more likely to deliver preterm. VPTB was associated with overweight (OR = 1.47, 95% CI: 1.056-2.03) and obesity (OR = 1.63, 95% CI: 1.02-2.60). Conclusion The findings demonstrate a J-shaped association between first trimester maternal BMI and spontaneous PTB and VPTB with increased risk among underweight, overweight and obese women. Article in Journal/Newspaper Northwest Russia BioMed Central Murmansk |
institution |
Open Polar |
collection |
BioMed Central |
op_collection_id |
ftbiomed |
language |
English |
topic |
BMI Obesity Preterm birth Russia |
spellingShingle |
BMI Obesity Preterm birth Russia Sharashova, Ekaterina E Anda, Erik E Grjibovski, Andrej M Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study |
topic_facet |
BMI Obesity Preterm birth Russia |
description |
Abstract Background International studies on the association between maternal body mass index (BMI) and spontaneous preterm birth (PTB) yield controversial results warranting large studies from other settings. The aim of this article was to study association between maternal early pregnancy BMI and the risk of spontaneous PTB in Murmansk County (MC), Northwest Russia. Methods This is a registry-based cohort study. All women with singleton pregnancies registered at antenatal clinics during the first 12 weeks of gestation and who delivered in MC between January, 1 st 2006 and December, 31 st 2011 comprised the study base (n = 29,709). All women were categorized by BMI into four groups: underweight (<18.5 kg/m 2 ), normal (18.5–24.9 kg/m 2 ), overweight (25.0–29.9 kg/m 2 ), and obese (≥30.0 kg/m 2 ). Multivariable logistic regression was used to study associations between maternal BMI and PTB (<37 weeks) and very preterm birth (VPTB) (<32 weeks) adjusted for socio-economic factors, biological and lifestyle characteristics. Results The prevalence of underweight, overweight and obesity were 7.1% (95% CI: 6.8-7.4), 18.3% (95% CI: 17.8-18.7) and 7.1% (95% CI: 6.8-7.4), respectively. Altogether, 5.5% (95% CI: 5.3-5.8) of the births were PTB and 0.8% (95% CI: 0.7-0.9) were VPTB. After adjustment, both underweight (OR = 1.25, 95% CI: 1.03-1.50), overweight (OR = 1.10, 95% CI: 0.97-1.26) and obese (OR = 1.31, 95% CI: 1.08-1.57) women were more likely to deliver preterm. VPTB was associated with overweight (OR = 1.47, 95% CI: 1.056-2.03) and obesity (OR = 1.63, 95% CI: 1.02-2.60). Conclusion The findings demonstrate a J-shaped association between first trimester maternal BMI and spontaneous PTB and VPTB with increased risk among underweight, overweight and obese women. |
format |
Article in Journal/Newspaper |
author |
Sharashova, Ekaterina E Anda, Erik E Grjibovski, Andrej M |
author_facet |
Sharashova, Ekaterina E Anda, Erik E Grjibovski, Andrej M |
author_sort |
Sharashova, Ekaterina E |
title |
Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study |
title_short |
Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study |
title_full |
Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study |
title_fullStr |
Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study |
title_full_unstemmed |
Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study |
title_sort |
early pregnancy body mass index and spontaneous preterm birth in northwest russia: a registry-based study |
publisher |
BioMed Central Ltd. |
publishDate |
2014 |
url |
http://www.biomedcentral.com/1471-2393/14/303 |
geographic |
Murmansk |
geographic_facet |
Murmansk |
genre |
Northwest Russia |
genre_facet |
Northwest Russia |
op_relation |
http://www.biomedcentral.com/1471-2393/14/303 |
op_rights |
Copyright 2014 Sharashova et al.; licensee BioMed Central Ltd. |
_version_ |
1766149413962514432 |