Navigation Links
Too much or too little weight gain poses risks to pregnant mothers, babies
Date:5/7/2008

CHAPEL HILL Women who gain more or less than recommended amounts of weight during pregnancy are likely to increase the risk of problems for both themselves and their child, according to a new report by the RTI International-University of North Carolina at Chapel Hill Evidence-based Practice Center.

The report, which was supported by the U.S. Department of Health and Human Services Agency for Healthcare Research and Quality (AHRQ) in partnership with the American Dietetic Association, is based on a systematic review of 150 studies that assessed the short- and long-term effects of maternal weight gain on pregnancy, mothers, fetuses, and children. The studies were published in English between January 1990 and October 2007.

Among the reports key findings is a strong association between high maternal weight gain and increased fetal growth and infant birth weight, which can contribute to complications during labor if a baby is too big, and can lead to long term health effects for the child. High maternal weight gain also is associated with cesarean delivery and weight retention by mothers after childbirth.

The review also confirmed that gaining too little weight during pregnancy can be a problem. Low maternal weight gain is associated with poor fetal growth, lower birth weight, and the chance of a baby being born prematurely.

The report was prompted by several trends, including an increase in the number of American women who are overweight and obese, as well as the number who gain more weight during pregnancy than amounts laid out in the Institute of Medicines 1990 recommendations for maternal weight gain. Public health officials also are concerned about an increase in pregnancy complications such as diabetes and cesarean delivery.

The Institute of Medicine is currently reviewing its pregnancy weight guidelines to see if they need to be revised; it expects to issue a report next summer.

Unfortunately, the existing body of research on maternal weight gain is inadequate to permit a more comprehensive assessment, said Meera Viswanathan, Ph.D., the study director and a senior research analyst at RTI International. Most beneficial would be an analysis that considers the risks and potential benefits of various maternal weight-gain scenarios to all women irrespective of age, race or ethnicity, or their body mass index before they became pregnant. But such an analysis is not possible at this time.

Her research colleague at UNC, Anna Maria Siega-Riz, Ph.D., agreed.

Despite the large body of research, clear clinical recommendations based on this systematic review will be challenging to formulate because of major shortcomings in this research, said Siega-Riz, an associate professor in the UNC School of Public Healths epidemiology and nutrition departments. To fully understand the effects of maternal weight gain on short- and long-term health outcomes for both women and infants, future studies will need to adopt standard measures and consistent definitions of exposures and outcomes.

The researchers said future studies will need to examine multiple outcomes within the same study population to explore fully the trade-offs between the risks and benefits to the mother and to the child.


'/>"/>

Contact: Patric Lane
patric_lane@unc.edu
919-962-8596
University of North Carolina at Chapel Hill
Source:Eurekalert

Related biology news :

1. Mothers little helpers
2. Choosing dry or wet food for cats makes little difference
3. Book on little-known species and conservation provides guidance to managers and others
4. Ancient lemurs little finger poses mystery
5. Variety is the spice of life: too many males, too little time...
6. Mice stressed in simulated weightlessness show organ atrophy
7. Soft drinks alone do not affect childrens weight
8. Weight gain between first and second pregnancies associated with increased odds of male second child
9. New drug makes weight loss safer
10. Researchers find evidence linking stress caused by the Sept. 11 disaster with low birth weights
11. Exercise improves thinking, reduces diabetes risk in overweight children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/15/2016)... Research and Markets has announced the addition of the ... offering. ... The global bioinformatics market is ... Billion in 2016, growing at a CAGR of 21.1% during the ... driven by the growing demand for nucleic acid and protein sequencing, ...
(Date:6/22/2016)... June 22, 2016   Acuant , ... verification solutions, has partnered with RightCrowd ® ... for Visitor Management, Self-Service Kiosks and Continuous ... that add functional enhancements to existing physical ... and venues with an automated ID verification ...
(Date:6/15/2016)... New York , June 15, 2016 /PRNewswire/ ... a new market report titled "Gesture Recognition Market by ... and Forecast, 2016 - 2024". According to the report, ... USD 11.60 billion in 2015 and is estimated ... reach USD 48.56 billion by 2024.  ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... Boston, MA (PRWEB) , ... December 02, 2016 , ... ... of Light Event on December 3rd, 2016. The event, which is held on ... NTI’s work with helping Americans with Disabilities back into the workplace. Suitable Technologies is ...
(Date:12/2/2016)... The immunohistochemistry (IHC) market is projected to reach ... during the forecast period of 2016 to 2021 dominated by immunohistochemistry ... the largest share of immunohistochemistry (IHC) market, by end user.   ... , , ... across 225 pages, profiling 10 companies and supported with 181 tables ...
(Date:11/30/2016)... , ... November 30, 2016 , ... ... moving magnet Voice Coil Actuator with a flexure design that ensures high alignment ... with cost-effective pricing and is ideally suited where extreme precision is required, such ...
(Date:11/30/2016)... New York , November 30, 2016 ... consolidated as a few players hold a dominant share ... Group, Charles River Laboratories International, Inc., and Merck KGaA, ... market in 2015. Transparency Market Research observes that these ... are focused on development products that are do not ...
Breaking Biology Technology: