Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New UNC research finds high rate of chlamydia in U.S. young adults

12.05.2004


More than one in 25 young adults in the United States is infected with the organism that causes the sexually transmitted disease known as chlamydia, according to the latest results from the National Longitudinal Study of Adolescent Health, a continuing University of North Carolina at Chapel Hill investigation.



If not detected and treated, chlamydia, which usually has no symptoms, can cause pelvic inflammatory disease, ectopic pregnancy and infertility.

The prevalence of chlamydial infection was higher than expected, especially among men. The infection was present in all races but six times greater in young black adults than in young whites, researchers found. Almost 14 percent of young black women and more than 11 percent of black men of comparable ages carried the bug.


Analysis of urine specimens of 12,548 study participants from across the country showed U.S. Asian men to have the lowest infection rates, scientists said. The highest infection rate occurred in the South (5.4 percent); the lowest was in the Northeast (2.4 percent).

Overall, the prevalence of gonorrhea was far lower -- 0.43 percent, the scientists discovered. Among black men and women, however, the prevalence was 2.13 percent.

"Asymptomatic young adult men clearly account for a large reservoir of infection in the general population, but screening recommendations have largely excluded men," said lead author Dr. William C. Miller, assistant professor of medicine and epidemiology.

"The marked differences in these sexually transmitted infections across racial and ethnic groups are disturbing," Miler said. "Our results provide compelling evidence that nationwide disparities in chlamydial and gonococcal infections are real rather than the result of biased estimates."

The differences may be partially responsible for considerable variations in reproductive health among whites, blacks and other racial and ethnic groups, he said. For example, black women have a 33 percent higher incidence of ectopic pregnancy compared with whites, and in many areas, including New York City, black women and infants face a greater risk of childbirth-related death, he said.

A report on the research, based on data collected during the third wave of Add Health, appears in the May 12 issue of the Journal of the American Medical Association. The new work is the most comprehensive assessment ever of the prevalence of chlamydial and gonococcal infections in the general population of young U.S. adults.

Besides Miller, UNC schools of medicine and public health authors are Drs. Carol A. Ford, associate professor of pediatrics; John L. Schmitz, assistant professor of pathology and laboratory medicine; Marcia M. Hobbs, research assistant professor of medicine; Myron S. Cohen, J. Herbert Bate professor of medicine and chief of the infectious diseases division; Kathleen Mullan Harris, professor of sociology; and J. Richard Udry, professor of maternal and child health and of sociology.

Drs. Martina Morris and Mark S. Handcock, both sociologists and statisticians at the University of Washington at Seattle, also participated in the study.

"We found the prevalence of untreated asymptomatic chlamydial infection to be high in young adults in the United States," Miller and colleagues wrote. "The high prevalence of chlamydial infection in both men and women suggests that current screening approaches that focus primarily on clinic-based testing of young women are inadequate. The reduction of disparities in the prevalence of both chlamydial and gonococcal infections across racial and ethnic groups must also be a priority."

Other findings were that:
  • Men and women of the same race did not differ markedly in infections.

  • Native Americans and Latinos also carried the Chlamydia trachomatis bacterium at high rates.

  • By comparison with chlamydia, gonococcal infections, also known as gonorrhea, were low as expected because that illness usually causes painful or unsightly symptoms for which most patients seek treatment.

Of people in the study population, who were age 22 on average, 54.2 percent were white, 21.3 percent black, 16.3 percent Latino, 7.2 percent Asian American and 1 percent Native American. toward home, school and religion that could affect health.


Support for the infection study came from the UNC Sexually Transmitted Diseases Cooperative Research Center, the National Institutes of Health and the Robert Wood Johnson Foundation.

The National Institute of Child Health and Human Development and 17 other agencies have supported Add Health, a program project designed by Udry, Harris and Dr. Peter S. Bearman, now of Columbia University. It has carefully followed close to 20,000 U.S. adolescents into adulthood to uncover behaviors that promote or damage young people’s health such as smoking, drug use and sexual activity and attitudes

David Williamson | EurekAlert!
Further information:
http://www.unc.edu/

More articles from Health and Medicine:

nachricht World first: Massive thrombosis removed during early pregnancy
20.07.2017 | Universitätsspital Bern

nachricht Therapy of preterm birth in sight?
19.07.2017 | Universitätsspital Bern

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: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

NASA looks to solar eclipse to help understand Earth's energy system

21.07.2017 | Earth Sciences

Stanford researchers develop a new type of soft, growing robot

21.07.2017 | Power and Electrical Engineering

Vortex photons from electrons in circular motion

21.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>