מתוך medicontext.co.il
By Joene Hendry
WESTPORT, CT (Reuters Health) – Chlamydia infection occurs in 7.7% of men who have sex only with men, according to data released Sunday at the 19th annual conference of the Gay and Lesbian Medical Association in New Orleans. This is similar to the prevalence of infection seen in women and in men who have sex with women, presenter D. Scott LaMontagne noted.
LaMontagne and colleagues at the Center for Health Training in Seattle collaborated with Dr. Jeanne Marrazzo at the University of Washington School of Medicine to determine the risk of chlamydia infection in men who have sex only with men. They used data from a Chlamydia trachomatis screening program conducted in four states from 1996 through 2000.
The researchers analyzed 8981 screening visits. Forty-eight percent of the men reported sex with two or more partners within the past 60 days and 73% said they did not use a condom during their last intercourse.
The investigators report chlamydia infections in 10.8% of those 20 to 24 years old and in 10.6% of those 18 to 19 years old. LaMontagne noted that the single best predictor of infection in asymptomatic men was young age. "Chlamydia trachomatis infection is highly age-dependent in men and women," he added.
The prevalence of chlamydia was 34.6% in symptomatic men who reported sexual contact with someone with a sexually transmitted disease and 15.2% in symptomatic participants with no known STD contact. Among the asymptomatic men, chlamydia was identified in 12.6% of those reporting an STD contact and 4.2% of those with no known STD contacts.
The researchers report no significant differences in risk factors for chlamydia infection between asymptomatic men who have sex with men and have no STD contact and a similar population of men who have sex with women. "No data to date indicates that men who have sex with men should be treated exclusively or differently from other populations," LaMontagne told Reuters Health.
He believes that STD clinics need to employ selective screening strategies to identify men who may be at risk of contracting chlamydia trachomatis. "Clinical exams…and open, honest assessment of risk history will uncover the most infections, regardless of [the patient's] sexual orientation," he said.
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