Navigation Links
When It Comes to Pregnancy, Timing Is Everything
Date:4/3/2008

Too little -- or too much -- time between births can be risky, research suggests

THURSDAY, April 3 (HeathDay News) -- First, there's the initial baby question: When is the right time to have your first child?

Turns out, that's just the beginning. Equally important is figuring out when to have the next baby -- if you decide to have more than one.

The proper timing of pregnancies, experts say, can decrease your risk of having a baby born premature and with a host of health problems.

Intervals that are too brief -- as well as those that are too long -- aren't desirable, research suggests.

In one of the latest studies, researchers from Washington University in St. Louis evaluated more than 156,000 women from Missouri who had two births from 1989 to 1997. The researchers looked at the intervals between pregnancies and the outcomes for those pregnancies. The study, led by Dr. Emily DeFranco, a clinical fellow in maternal-fetal medicine and a staff member at Washington University's Center for Preterm Birth Research, was published recently in the American Journal of Obstetrics and Gynecology.

Among the findings, according to DeFranco:

  • Intervals of less than six months from delivery to conception of the next baby increased the risk of preterm birth (less than 35 weeks) by 41 percent.
  • Intervals of six to 12 months increased preterm birth risk by 14 percent.
  • Intervals of 12 to 18 months carried no significant increased risk of preterm birth.

"Wait a minimum of 12 months before becoming pregnant again," DeFranco advised. That's to say, let 12 months or more go by after delivery before you start trying again to become pregnant. That advice is especially crucial for women who have already had a preterm birth, which raises the preterm risk in subsequent pregnancies, she said.

In another report, published in April 2006 in the Journal of the American Medical Association, researchers from Bogota, Colombia, reviewed the results of 22 published studies, coming to conclusions similar to those of the Missouri researchers. But the Colombian researchers also found hazards with intervals that were too lengthy.

The researchers reviewed data on more than 11 million pregnancies spanning a 40-year period. They found that babies born to women who had an interval of less than six months between pregnancy and conception were 40 percent more likely to be born early than those whose mothers waited 18 to 23 months. Those babies were also 61 percent more likely to be underweight at birth and 26 percent more likely to be small for their gestational age, compared to infants born to mothers who waited 18 to 23 months between pregnancies.

But, the Colombian researchers also found that babies born to mothers who waited longer than 59 months between delivery and the next pregnancy had a 20 percent to 43 percent increased risk of health problems, such as small for gestational age.

Short intervals may increase risk to the babies, because the mother hasn't had enough time to recover nutritionally from one pregnancy to the next one, experts say. It's not clear why long intervals might pose problems, but one possibility is that women who delay another pregnancy for an extended period of time may simply be reaching a stage in life where advancing maternal age is itself becoming a risk factor.

Rachel Royce is a senior epidemiologist at RTI International, a scientific research institute in Research Triangle Park, N.C., who wrote an editorial to accompany the Colombian research. She noted that "the data show that intervals in the range of 20 to 40 months [between births] are associated with the best outcomes."

That works out to about 12 months or longer between delivery and conception of the next baby -- exactly what the Missouri researchers concluded.

"Essentially, clinicians should counsel all women to space pregnancies at least 12 months apart, if at all possible," Royce said.

DeFranco agreed.

More information

To learn about how to get healthy before getting pregnant, visit the March of Dimes.



SOURCES: Emily DeFranco, D.O., clinical fellow, maternal-fetal medicine, and staff member, Center for Preterm Birth Research, Washington University, St. Louis; Rachel Royce, Ph.D., M.P.H., senior research epidemiologist, RTI International, Research Triangle Park, N.C.; April 19, 2006, Journal of the American Medical Association; September 2007, American Journal of Obstetrics and Gynecology


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Houston-Based LifeGift Becomes States Only Stand-Alone Organ and Tissue Recovery Agency
2. Leventhal Weight Loss Incorporated Becomes First in the Nation Executive Weight Loss Consulting Service for Attorneys by an Attorney
3. Drug-coated balloon overcomes in-stent restenosis
4. Anticoagulant Drugs Had Similar Outcomes After Angioplasty
5. Comparison of anticoagulants for angioplasty show similar outcomes
6. Spartan Stores Becomes Largest U.S. Supermarket Chain to Receive NSF Shop Fresh(TM) Certification
7. Head and Neck Cancer Outcomes a Mixed Bag
8. MTM Study Reports Improved Quality and Economic Outcomes Using Medication Management Systems Assurance Pharmaceutical Care System(TM)
9. Specialized Care for Ovarian Cancer Improves Outcomes
10. Outcomes Improve for Non-Hodgkin Lymphoma Patients
11. Therap Services Welcomes Anna Keith to the US Customer Support Team
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
When It Comes to Pregnancy, Timing Is Everything
(Date:10/13/2017)... Shelton, CT (PRWEB) , ... October 13, 2017 , ... ... and long-term care services, staged a mock evacuation of the facility as part of ... Department, Shelton Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun ... NJ. This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is ... is geared towards children of all ages; it is a non-competitive, non-timed event, which ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to the Mission ... lost souls in the Philippines. “The Journey: From the Mountains to the Mission Field” ... the Bible. She has taught all ages and currently teaches a class of ladies ...
(Date:10/12/2017)... LA (PRWEB) , ... October 12, 2017 , ... Planet ... in the U.S., announced today its plans to open a flagship location in Covington, ... occupy the former Rooms To Go store next to Office Depot in the Holiday ...
(Date:10/12/2017)... ... 12, 2017 , ... Asante, a nationally recognized health system ... their existing home health joint venture through an agreement, effective October 1, 2017, ... venture home health company with Asante, delivering clinically integrated care, for the past ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... SAN DIEGO , Oct. 12, 2017   Divoti ... Medical Alert Jewelry up to the standard of the latest FDA ... (Launched: June 2017). Anyone in need of Medical ID ... Divoti Medical Alert Jewelry are engraved in terms of the ... ...
(Date:10/11/2017)... , Oct. 11, 2017  True Health, a ... amplified its effort during National Breast Cancer Awareness ... cancer risks. ... Oncology calculated that more than 10 million American ... mutations in BRCA1 or BRCA2 and have not had ...
(Date:10/7/2017)... Oct. 6, 2017   Provista, a proven ... $100 billion in purchasing power, today announced a new ... The Newsroom is the online home for ... infographics, expert bios, news releases, slideshows and events. ... a wealth of resources at their fingertips, viewers can ...
Breaking Medicine Technology: