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 One gene closer to regenerative therapy for muscular disorders
01.06.2017 | Cincinnati Children's Hospital Medical Center

nachricht The gut microbiota plays a key role in treatment with classic diabetes medication
01.06.2017 | University of Gothenburg

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: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

Im Focus: Optoelectronic Inline Measurement – Accurate to the Nanometer

Germany counts high-precision manufacturing processes among its advantages as a location. It’s not just the aerospace and automotive industries that require almost waste-free, high-precision manufacturing to provide an efficient way of testing the shape and orientation tolerances of products. Since current inline measurement technology not yet provides the required accuracy, the Fraunhofer Institute for Laser Technology ILT is collaborating with four renowned industry partners in the INSPIRE project to develop inline sensors with a new accuracy class. Funded by the German Federal Ministry of Education and Research (BMBF), the project is scheduled to run until the end of 2019.

New Manufacturing Technologies for New Products

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

A new technique isolates neuronal activity during memory consolidation

22.06.2017 | Life Sciences

Plant inspiration could lead to flexible electronics

22.06.2017 | Materials Sciences

A rhodium-based catalyst for making organosilicon using less precious metal

22.06.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>