Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study finds higher STD rates among users of erectile dysfunction drugs

06.07.2010
Results stress importance of counseling safer-sex practices, even for older patients

Physicians who prescribe erectile dysfunction drugs for their male patients should be sure to discuss the importance of safer sex practices, even with older patients: that is an important implication of a report in the July 6 issue of Annals of Internal Medicine. The analysis of insurance records of more than 1.4 million U.S. men over 40 found that those who used ED drugs were more likely to have sexually transmitted diseases than were non-users.

"Anyone who does not practice safer sex, no matter their age, can contract an STD," says Anupam B. Jena, MD, PhD, of the Massachusetts General Hospital (MGH) Department of Medicine, the study's lead author. "Even though STDs are quite rare among older men – on the order of 1 per 1,000 individuals – we found that STD rates in men who used ED drugs were two to three times higher, both before and after they filled their first prescription."

Jena and his co-authors note that ED drugs have become popular since sildenafil (Viagra) was first introduced in 1998. As early as 2002 it was estimated that up to 20 percent of U.S. men over 40 had tried an ED drug. Studies have shown both that rates of STDs, including HIV/AIDS, are rising in older individuals as well as the general public and that people over 50 are much less likely than those in their 20s to use condoms during sex or be tested for HIV infection. A survey of primary care physicians found that they rarely if ever discussed reducing sexual risk factors with middle aged or older patients.

Small studies of men who have sex with men had associated the use of ED drugs with higher-risk behaviors and increased rates of STDs. But no previous study had examined the relationship between ED drugs and STD risk in a large, representative sample of privately insured older men. For the current study, the researchers examined health insurance claims records covering 1997 though 2006 from 44 large U.S. employers. For male beneficiaries over 40 who used ED drugs, the researchers collected data covering one year before and one year after the first prescription was filled. Each ED drug user was matched with five non-users randomly selected from the database, for whom claims data covering the same two-year periods was collected.

The final study group included about 40,000 men who used ED drugs and nearly 1.37 million who did not. In both the year before and the year after the first ED drug prescription, users had significantly higher rates of STDs than non-users did in matching time periods. HIV/AIDS was the most frequently reported STD in both groups, followed by chlamydia. Since the prevalence of STDs did not markedly change after ED drug therapy began, the authors note that the difference between groups probably reflects higher-risk sexual practices among users of the drugs. The data gathered could not indicate whether ED drug use itself increased STD risk, but the authors are investigating that question in a further study.

"Health care providers need to recognize that their older adult patients who are on ED drugs are already at a higher risk of having or acquiring an STD," says Dana Goldman, PhD, director of the Schaeffer Center for Health Policy and Economics at the University of Southern California (USC), the study's senior author. "Both the physicians who prescribe these drugs and the pharmacists who fill those prescriptions should counsel all patients on the importance of safer sexual practices."

Co-authors of the Annals of Internal Medicine report are Amee Kamdar, PhD, University of Chicago; Darius Lakdawalla, PhD, Schaeffer Center at USC; and Yang Lu, PhD, RAND Corporation. The study was supported by grants from the RAND Roybal Center for Health Policy Simulation, the National Institutes of Health, the Agency for Healthcare Research and Quality, and the Bing Center for Health Economics.

Massachusetts General Hospital

Massachusetts General Hospital, established in 1811, is the original and largest teaching hospital of Harvard Medical School. The MGH conducts the largest hospital-based research program in the United States, with an annual research budget of more than $600 million and major research centers in AIDS, cardiovascular research, cancer, computational and integrative biology, cutaneous biology, human genetics, medical imaging, neurodegenerative disorders, regenerative medicine, systems biology, transplantation biology and photomedicine.

Schaeffer Center for Health Policy and Economics

The Schaeffer Center at the University of Southern California is distinguished by a staff strategically recruited for its research and policy expertise. The center uses a novel, interdisciplinary approach to advance economic, health services and policy research and to train a new generation of global health policy leaders. Currently, the center conducts research and policy analysis to support evidence-based health care reform. Studies underway focus on critical health policy issues related to health care spending and value, the impacts of public policy on pharmaceutical innovation, insurance design, the macroeconomic consequences of US health care costs and comparative effectiveness and outcomes research.

Sue McGreevey | EurekAlert!
Further information:
http://www.mgh.harvard.edu

More articles from Studies and Analyses:

nachricht Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

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)...

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

Touch Displays WAY-AX and WAY-DX by WayCon

27.06.2017 | Power and Electrical Engineering

Drones that drive

27.06.2017 | Information Technology

Ultra-compact phase modulators based on graphene plasmons

27.06.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>