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P93 Assessing the Number of Sex Partners Reported by Men Screened for Chlamydia in Different Venues: Providing Data for Sexually Transmitted Disease Transmission Models

Tuesday, March 9, 2010
Pre-Function Lobby & Grand Ballroom D2/E (M4) (Omni Hotel)
Thomas Gift, PhD1, Jonathan Ellen, MD2, Cornelis Rietmeijer, MD, PhD3, Charlotte Gaydos, DrPH4, Jeanne Marrazzo, MD, MPH5, Jeffrey D. Klausner, MD, MPH6, Kwame Owusu-Edusei Jr., PhD7, Eileen Dunne, MD, MPH1, Julia Schillinger, MD, MSc8 and Charlotte Kent, PhD9, 1Division of STD Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 2School of Medicine Ped Bay Bayview Pediatric Unit, The Johns Hopkins University, Baltimore, MD, 3STD Control Program, Denver Public Health, Denver, CO, 4School of Medicine, Division of Infectious Diseases, STD Laboratory, Johns Hopkins University, Baltimore, MD, 5Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA, 6Global AIDS Program, Centers for Disease Control and Prevention, Atlanta, GA, 7Division of STD Prevention, Centers for Disease Control and Prevention (CDC), Norcross, GA, 8NYC DOHMH Bureau of STD Control; CDC Division of STD Prevention, The New York City Department of Health and Mental Hygiene; US Centers for Disease Control and Prevention, New York, NY, 9Division of STD Prevention; Health Services Research and Evaluation Branch, CDC, Atlanta, GA

Background: Dynamic models of sexually transmitted disease (STD) transmission typically rely on stratified sexual activity levels among the population to calibrate models for observed STD prevalence and incidence rates. To accurately depict sexual activity classes, detailed data on partner numbers is needed.

Objectives: To describe the number of sex partners reported in the prior 12 months in men screened for STDs by venues, to inform STD transmission models of interventions targeting men in specific venues.

Methods: Data were collected from a 4-city male chlamydia screening study, (1999-2003).  To compare data with other studies we categorized number of partners in the last 12 months as follows: 0, 1, 2-4, 5-9, and 10+.  We compared overall means and percentages with each partner number group using men screened in STD clinics as the comparator group.

Results: The mean number of female partners of men screened in STD clinics was 3.6 (median of 2).  The mean number of partners for males screened in juvenile detention (JD) was 4.7, while for adult detention (AD) was 5.4 (both p < 0.001). The medians for JD and AD were 3 (for both). The percentage of men screened in STD clinics with 0, 1, 2-4, 5-9, and 10+ partners was 6.1, 25.3, 49.2, 13.0, and 6.3, respectively.  For JD the percentages were 6.3, 21.1, 40.0, 19.8, and 12.8, respectively.   For AD the percentages were 7.9, 18.5, 39.2, 21.0, and 13.4, respectively.

Conclusions: The mean number of partners of men screened and the proportion of men with higher numbers of partners varied significantly by venue.  Males in JD and AD venues had the highest number of partners.

Implications for Programs, Policy, and/or Research: Accounting for partner number differences in men attending different venues could enable modelers to more accurately predict the impact of venue-specific interventions.

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