“In the context of a comprehensive HIV prevention package provided to all participants, the trial found no additional protective benefit against HIV infection from adding the diaphragm plus lubricant in the intervention arm,” said the trial’s lead investigator, Nancy Padian, PhD, director of UCSF’s Women’s Global Health Imperative.
The study, to be published online in The Lancet, reported an overall HIV incidence rate of 4.0 percent: 4.1 percent in the intervention arm that included provision of diaphragm and lubricant and 3.9 percent in the control arm that included only provision of condoms. Findings also showed 158 new HIV infections in the intervention arm and 151 in the control group.
“These results do not support the addition of the diaphragm to current HIV prevention strategies. Condoms remain the only proven barrier method for HIV prevention,” said Padian.
All participants in the trial received a comprehensive package of safer-sex and family planning counseling, free male condoms, diagnosis and treatment of curable sexually transmitted infections, and free contraception.
The investigators could not evaluate whether using the diaphragm alone was better than using nothing, because most women in both arms of the trial reported male condom use.
The trial, known at “Methods for Improving Reproductive Health in Africa, or MIRA, began in 2003 and was conducted at sites in Harare, Zimbabwe, and Soweto and Durban, South Africa. The trial was launched because previous data has suggested that the cells in the cervix are particularly vulnerable to HIV infection, and use of a diaphragm presented the potential for protection. A flexible, dome-shaped rubber disk, a diaphragm is inserted vaginally with a gel to cover the cervix.
Jeff Sheehy | EurekAlert!
Study relating to materials testing Detecting damages in non-magnetic steel through magnetism
23.07.2018 | Technische Universität Kaiserslautern
Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel
There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.
The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
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20.08.2018 | Life Sciences
20.08.2018 | Information Technology