Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New natural method of family planning over 95% effective in preventing pregnancy, study finds

10.06.2002


Research shows that women who use CycleBeads correctly are able to avoid unplanned pregnancies more than 95% of the time.
(Georgetown University Medical Center)


The Standard Days Method (TM), a new natural method of family planning, is more than 95% effective at preventing pregnancy, according to an international study conducted by Georgetown University Medical Center’s Institute for Reproductive Health. Results of the study are published in the current issue of Contraception, the journal of the Association of Reproductive Health Professionals.

Based on sophisticated computer modeling of reproductive physiology data, the Standard Days Method identifies the 12-day "fertile window" of a woman’s menstrual cycle. These 12 days take into account the life span of the woman’s egg (about 24 hours) and the viable life of sperm (about 5 days) as well as the variation in the actual timing of ovulation from one cycle to the next. The study found the efficacy of the Standard Days Method to be comparable to or better than a number of other widely used methods of family planning, including the diaphragm and condom.

The two-year clinical trial evaluated the effectiveness of the Standard Days Method of family planning for 478 women in Bolivia, Peru and the Philippines. The women were of childbearing age with menstrual cycles between 26 and 32 days long. The study followed the women over 13 cycles.



"Millions of women worldwide use no form of family planning whatsoever, even though they do not want to become pregnant. And millions more rely on periodic abstinence as their primary form of family planning, but do not have a clear understanding of which days in their cycle they should avoid unprotected intercourse," said Victoria Jennings, PhD, Georgetown professor of obstetrics and gynecology and principal investigator of the study. "Clearly there is a need for a simpler, easier method of natural family planning--and that is where the Standard Days Method can really fill a void."

To help women keep track of which days to avoid unprotected intercourse, the Institute for Reproductive Health developed CycleBeads (TM), a string of 32 color-coded beads with each bead representing a day of the menstrual cycle. Beginning with the red bead, which represents the first day of her menstrual period, the woman moves a small rubber ring one bead each day. The brown beads are the days when pregnancy is very unlikely, and the glow-in-the dark white beads (beads 8-19) represent her fertile days. The 478 women who participated in the clinical trial relied on CycleBeads to track their cycles.

The method works best for women whose cycles are usually between 26 and 32 days long. Women use the CycleBeads and the Standard Days Method the same way every month.

"In our research, CycleBeads were found to be an easy way for women to use the Standard Days Method. They are an effective tool for women who want to use a reliable, inexpensive, non-invasive, non-hormonal method of family planning," said Dr. Jennings.

The Standards Days Method differs from the rhythm method in that the rhythm method requires that the woman collect detailed information about the last six menstrual cycles and perform monthly calculations to figure out which days in the current cycle she is most likely to get pregnant. The Standard Days Method requires no such calculations. No reliable, scientific effectiveness trial of the rhythm method has been reported.

According to the 1998 edition of Contraceptive Technology, 85% of women who use no method of family planning will get pregnant in one year. The percent of women who will become pregnant during the first year of perfect use of a "user-controlled" method is as follows:


Cervical cap, 9 - 26%
Spermicides, 6%
Diaphragm, 6%
Female condom, 5%
Male condom, 3%
Birth control pills, 0.1 - 0.5%
Standard Days Method, 5% (2002 Georgetown study)

Several thousand women in 14 countries currently use the Standard Days Method and CycleBeads. Plans to manufacture and distribute CycleBeads in numerous countries, including the United States, are currently underway. More information about the Standard Days Method and CycleBeads can be found at www.irh.org.


Co-authors of the new Standard Days Method study published in Contraception are Marcos Arevalo, MD, MPH and Irit Sinai, PhD, both assistant professors of obstetrics and gynecology at Georgetown University Medical Center. The study was funded by the U.S. Agency for International Development.

Georgetown University Medical Center includes the School of Medicine, School of Nursing and Health Studies, the Lombardi Cancer Center and a $120 million biomedical research enterprise. The Institute for Reproductive Health (www.irh.org) conducts research, advances scientific information, and provides policy support in natural family planning and fertility awareness.


Beth Porter | EurekAlert

More articles from Health and Medicine:

nachricht Purdue cancer identity technology makes it easier to find a tumor's 'address'
16.11.2018 | Purdue University

nachricht Microgel powder fights infection and helps wounds heal
14.11.2018 | Michigan Technological University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Purdue cancer identity technology makes it easier to find a tumor's 'address'

16.11.2018 | Health and Medicine

Good preparation is half the digestion

16.11.2018 | Life Sciences

Microscope measures muscle weakness

16.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>