The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage

Background: Maternal obesity is associated with menstrual disorders, infertility and sporadic miscarriages. Recurrent miscarriage (RM) affects at least 1% of couples trying to conceive. In over 50% of cases, the cause of the loss of pregnancy remains unexplained. The aim of this study was to determi...

Full description

Bibliographic Details
Main Authors: Winnie Lo, Raj Rai, Aisha Hameed, Susan R Brailsford, Ahlam A Al-Ghamdi, Lesley Regan
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2012-01-01
Series:Journal of Family and Community Medicine
Subjects:
Online Access:http://www.jfcmonline.com/article.asp?issn=2230-8229;year=2012;volume=19;issue=3;spage=167;epage=171;aulast=Lo
_version_ 1828421989052710912
author Winnie Lo
Raj Rai
Aisha Hameed
Susan R Brailsford
Ahlam A Al-Ghamdi
Lesley Regan
author_facet Winnie Lo
Raj Rai
Aisha Hameed
Susan R Brailsford
Ahlam A Al-Ghamdi
Lesley Regan
author_sort Winnie Lo
collection DOAJ
description Background: Maternal obesity is associated with menstrual disorders, infertility and sporadic miscarriages. Recurrent miscarriage (RM) affects at least 1% of couples trying to conceive. In over 50% of cases, the cause of the loss of pregnancy remains unexplained. The aim of this study was to determine the relationship between maternal Body Mass Index (BMI) and future outcomes of pregnancy in couples with "unexplained" RM. Methods and Results: All couples referred to the specialist recurrent miscarriage clinic at St. Mary′s Hospital, London, were investigated for an underlying cause. Those with unexplained RM were eligible. Demographic and clinical data were retrieved from a computerised database and medical records. The World Health Organisation (WHO) classification of BMI was used. Univariate analysis demonstrated that BMI, maternal age, number of previous miscarriages and ethnicity were significantly associated with pregnancy outcome. Logistic regression demonstrated that maternal obesity (BMI ≥ 30 kg/m 2 ) significantly increased the risk of miscarriage in couples with unexplained RM (OR 1.73; 95% CI 1.06 - 2.83). Asian women with a BMI similar to Caucasian women had a higher risk of a further miscarriage (OR 2.87, 95% CI, 1.52 - 5.39). Conclusions: Maternal obesity is an independent factor associated with an increased risk of miscarriage in couples with RM. All women with RM should have their BMI recorded at their first clinic visit. The potential effect of weight loss on the outcome of subsequent pregnancies should be assessed in future studies. The increased risk of miscarriage in Asian women needs to be explored further.
first_indexed 2024-12-10T15:41:17Z
format Article
id doaj.art-6517d8027dd545bf837bbdff19021652
institution Directory Open Access Journal
issn 2230-8229
2229-340X
language English
last_indexed 2024-12-10T15:41:17Z
publishDate 2012-01-01
publisher Wolters Kluwer Medknow Publications
record_format Article
series Journal of Family and Community Medicine
spelling doaj.art-6517d8027dd545bf837bbdff190216522022-12-22T01:43:06ZengWolters Kluwer Medknow PublicationsJournal of Family and Community Medicine2230-82292229-340X2012-01-0119316717110.4103/2230-8229.102316The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriageWinnie LoRaj RaiAisha HameedSusan R BrailsfordAhlam A Al-GhamdiLesley ReganBackground: Maternal obesity is associated with menstrual disorders, infertility and sporadic miscarriages. Recurrent miscarriage (RM) affects at least 1% of couples trying to conceive. In over 50% of cases, the cause of the loss of pregnancy remains unexplained. The aim of this study was to determine the relationship between maternal Body Mass Index (BMI) and future outcomes of pregnancy in couples with "unexplained" RM. Methods and Results: All couples referred to the specialist recurrent miscarriage clinic at St. Mary′s Hospital, London, were investigated for an underlying cause. Those with unexplained RM were eligible. Demographic and clinical data were retrieved from a computerised database and medical records. The World Health Organisation (WHO) classification of BMI was used. Univariate analysis demonstrated that BMI, maternal age, number of previous miscarriages and ethnicity were significantly associated with pregnancy outcome. Logistic regression demonstrated that maternal obesity (BMI ≥ 30 kg/m 2 ) significantly increased the risk of miscarriage in couples with unexplained RM (OR 1.73; 95% CI 1.06 - 2.83). Asian women with a BMI similar to Caucasian women had a higher risk of a further miscarriage (OR 2.87, 95% CI, 1.52 - 5.39). Conclusions: Maternal obesity is an independent factor associated with an increased risk of miscarriage in couples with RM. All women with RM should have their BMI recorded at their first clinic visit. The potential effect of weight loss on the outcome of subsequent pregnancies should be assessed in future studies. The increased risk of miscarriage in Asian women needs to be explored further.http://www.jfcmonline.com/article.asp?issn=2230-8229;year=2012;volume=19;issue=3;spage=167;epage=171;aulast=LoBMImiscarriageobesityrecurrent miscarriageweight loss
spellingShingle Winnie Lo
Raj Rai
Aisha Hameed
Susan R Brailsford
Ahlam A Al-Ghamdi
Lesley Regan
The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
Journal of Family and Community Medicine
BMI
miscarriage
obesity
recurrent miscarriage
weight loss
title The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
title_full The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
title_fullStr The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
title_full_unstemmed The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
title_short The effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
title_sort effect of body mass index on the outcome of pregnancy in women with recurrent miscarriage
topic BMI
miscarriage
obesity
recurrent miscarriage
weight loss
url http://www.jfcmonline.com/article.asp?issn=2230-8229;year=2012;volume=19;issue=3;spage=167;epage=171;aulast=Lo
work_keys_str_mv AT winnielo theeffectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT rajrai theeffectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT aishahameed theeffectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT susanrbrailsford theeffectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT ahlamaalghamdi theeffectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT lesleyregan theeffectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT winnielo effectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT rajrai effectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT aishahameed effectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT susanrbrailsford effectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT ahlamaalghamdi effectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage
AT lesleyregan effectofbodymassindexontheoutcomeofpregnancyinwomenwithrecurrentmiscarriage