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Public release date: 25-Mar-2013[ | E-mail |
Share ] Contact: Mary Masson
mfmasson@umich.edu
734-764-2220
University of Michigan Health System
Maternal sleep position may influence pregnancy outcomes, according to University of Michigan-led study
Ann Arbor, Mich. Pregnant women in Ghana who slept on their back (supine sleep) were at an increased risk of stillbirth compared to women who did not sleep on their back, according to new research led by a University of Michigan researcher.
In the study, published this month in the International Journal of Gynecology and Obstetrics, researchers found that supine sleep increased the risk of low birth weight by a factor of 5 and that it was the low birth weight that explained the high risk for stillbirth in these women.
The study's senior author, Louise O'Brien, Ph.D., M.S., associate professor in U-M's Sleep Disorders Center, says that although this study was conducted in a maternity hospital in Ghana -- a country that has high perinatal mortality -- a recent case-control study from New Zealand also found a link between maternal supine sleep and stillbirth.
Stillbirth is a traumatic event that occurs in about 2-5 babies out of every 1,000 babies born in high-income countries. In low income countries, such as those in Africa, about 20-50 babies out of every 1,000 babies are stillborn.
"But if maternal sleep position does play a role in stillbirth, encouraging pregnant women everywhere not to sleep on their back is a simple approach that may improve pregnancy outcomes," says O'Brien.
Sub-Saharan Africa has the highest rate of stillbirth in the world and little progress has been made in reducing those deaths.
"In Ghana, inexpensive interventions are urgently needed to improve pregnancy outcomes. This is a behavior that can be modified: encouraging women to avoid sleeping on their back would be a low-cost method to reduce stillbirths in Ghana and other low-income countries," says O'Brien.
Jocelynn Owusu, M.P.H., of the Department of Health Behavior and Education in the U-M School of Public Health, the study's first author, interviewed women soon after delivery at Korle Bu Teaching Hospital in Accra Ghana.
O'Brien says that the possibility that supine sleep has a part in low birth weight and subsequently stillbirth is plausible because of uterine compression on the inferior vena cava, resulting in reduced venous filling and cardiac output.
"The data in this study suggests that more than one-quarter of stillbirths might be avoided by altering maternal sleep position," O'Brien says. "This supports the need to develop simple intervention trials."
###
Additional authors: From the University of Michigan School of Public Health: Frank J. Anderson, clinical associate professor in the Department of Health Behavior and Health Education; Of Korle Bu Teaching Hospital in Ghana: Jerry Coleman, Samuel Oppong, Joseph D. Seffah and Alfred Aikins.
Journal reference: http://dx.doi.org/10.1016/j.ijgo.2013.01.013
University of Michigan's Program for Sexual Rights and Reproductive Justice: Join us May 29-31, 2013 for an innovative meeting to advance reproductive justice by exploring the intersections of activism, advocacy, and academia. To date, advocacy groups have advanced reproductive justice agendas around the country and the world. We believe it is time for academic institutions to step up to support their work by providing a forum for meaningful dialogue and the development of research agendas and applied projects. This meeting will allow advocates, activists and academics to collectively explore how we can design research informed by advocacy and generate useful and reliable data and findings that promote reproductive justice. More info and registration: https://sites.google.com/site/a3ina2/
About the U-M Sleep Disorders Center: The Sleep Disorders Center diagnoses and treats patients who have problems with their sleep or level of alertness. The Center is among the largest academic facilities of its kind in the country and includes several parts: a number of general and more specialized Sleep Disorders Clinics; the Michael S. Aldrich Sleep Disorders Laboratory; the University of Michigan Sleep Disorders Laboratory South State Street; active training programs; and productive research projects.
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Public release date: 25-Mar-2013[ | E-mail |
Share ] Contact: Mary Masson
mfmasson@umich.edu
734-764-2220
University of Michigan Health System
Maternal sleep position may influence pregnancy outcomes, according to University of Michigan-led study
Ann Arbor, Mich. Pregnant women in Ghana who slept on their back (supine sleep) were at an increased risk of stillbirth compared to women who did not sleep on their back, according to new research led by a University of Michigan researcher.
In the study, published this month in the International Journal of Gynecology and Obstetrics, researchers found that supine sleep increased the risk of low birth weight by a factor of 5 and that it was the low birth weight that explained the high risk for stillbirth in these women.
The study's senior author, Louise O'Brien, Ph.D., M.S., associate professor in U-M's Sleep Disorders Center, says that although this study was conducted in a maternity hospital in Ghana -- a country that has high perinatal mortality -- a recent case-control study from New Zealand also found a link between maternal supine sleep and stillbirth.
Stillbirth is a traumatic event that occurs in about 2-5 babies out of every 1,000 babies born in high-income countries. In low income countries, such as those in Africa, about 20-50 babies out of every 1,000 babies are stillborn.
"But if maternal sleep position does play a role in stillbirth, encouraging pregnant women everywhere not to sleep on their back is a simple approach that may improve pregnancy outcomes," says O'Brien.
Sub-Saharan Africa has the highest rate of stillbirth in the world and little progress has been made in reducing those deaths.
"In Ghana, inexpensive interventions are urgently needed to improve pregnancy outcomes. This is a behavior that can be modified: encouraging women to avoid sleeping on their back would be a low-cost method to reduce stillbirths in Ghana and other low-income countries," says O'Brien.
Jocelynn Owusu, M.P.H., of the Department of Health Behavior and Education in the U-M School of Public Health, the study's first author, interviewed women soon after delivery at Korle Bu Teaching Hospital in Accra Ghana.
O'Brien says that the possibility that supine sleep has a part in low birth weight and subsequently stillbirth is plausible because of uterine compression on the inferior vena cava, resulting in reduced venous filling and cardiac output.
"The data in this study suggests that more than one-quarter of stillbirths might be avoided by altering maternal sleep position," O'Brien says. "This supports the need to develop simple intervention trials."
###
Additional authors: From the University of Michigan School of Public Health: Frank J. Anderson, clinical associate professor in the Department of Health Behavior and Health Education; Of Korle Bu Teaching Hospital in Ghana: Jerry Coleman, Samuel Oppong, Joseph D. Seffah and Alfred Aikins.
Journal reference: http://dx.doi.org/10.1016/j.ijgo.2013.01.013
University of Michigan's Program for Sexual Rights and Reproductive Justice: Join us May 29-31, 2013 for an innovative meeting to advance reproductive justice by exploring the intersections of activism, advocacy, and academia. To date, advocacy groups have advanced reproductive justice agendas around the country and the world. We believe it is time for academic institutions to step up to support their work by providing a forum for meaningful dialogue and the development of research agendas and applied projects. This meeting will allow advocates, activists and academics to collectively explore how we can design research informed by advocacy and generate useful and reliable data and findings that promote reproductive justice. More info and registration: https://sites.google.com/site/a3ina2/
About the U-M Sleep Disorders Center: The Sleep Disorders Center diagnoses and treats patients who have problems with their sleep or level of alertness. The Center is among the largest academic facilities of its kind in the country and includes several parts: a number of general and more specialized Sleep Disorders Clinics; the Michael S. Aldrich Sleep Disorders Laboratory; the University of Michigan Sleep Disorders Laboratory South State Street; active training programs; and productive research projects.
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2013-03/uomh-gpw032513.php
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