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Repeat Chlamydia trachomatis: Rate and Predictors among Males. Eileen F. Dunne M.D., M.P.H. JB Chapin, C Rietmeijer , CK Kent, J Ellen, C Gaydos, N Willard, L Lloyd, N Birkjukow, S Chung, JA Schillinger, LE Markowitz
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Repeat Chlamydia trachomatis: Rate and Predictors among Males Eileen F. Dunne M.D., M.P.H. JB Chapin, C Rietmeijer , CK Kent, J Ellen, C Gaydos, N Willard, L Lloyd, N Birkjukow, S Chung, JA Schillinger, LE Markowitz Division of STD Prevention Centers for Disease Control and Prevention
Acknowledgments Baltimore: Jon Ellen Charlotte Gaydos Nancy Willard Michelle Chung Denver: Kees Rietmeijer Laura Lloyd San Francisco: Charlotte Kent Nat Birkjukow CDC: Julie Schillinger Lauri Markowitz Maya Sternberg Johanna Chapin
Background • Chlamydia trachomatis (Ct) infection in females is common and associated with serious sequelae • PID, ectopic pregnancy and infertility • Ct infection in males • Limited resources to screen • Additional information needed to guide program activities
Background • Male Chlamydia Screening Project: • Demonstration project: men ages 15-44 screened for Ct infection • Baltimore • Denver • San Francisco • Seattle • Longitudinal Study: men with Ct infection recruited for a study of repeat infection • Baltimore • Denver • San Francisco
Venue Type BaltimoreDenverSan Francisco (N=10) (N=33) (N=11) Adolescent Primary Care X X X Adult Primary Care X X Juvenile Detention X X Adult Detention X X X School Clinics X X X School Health Fairs X College Clinics X Community Based Organizations X Drug Treatment X STD Clinics X X Street Outreach X X
Objectives To evaluate: • Ct prevalence and predictors of infection • Cost-effectiveness of screening for Ct infection • Partner and network characteristics • Rate and predictors of repeat Ct infection
Objectives • Ct prevalence and predictors of infection • Cost-effectiveness of screening for Ct infection • Partner and network characteristics • Rate and predictors of repeat Ct infection
Longitudinal Study Methods • Men with Ct infection recruited from various venues in Baltimore, Denver, San Francisco • Study Design • Baseline Visit • Questionnaire • Partner management • Follow-up at 1 and 4 months • Screening for Ct using urine NAATs • Questionnaire • Partner management
Longitudinal Study Methods • Analysis: • Men with at least one follow-up visit • Repeat infection: defined as Ct infection at the first or second follow-up visit
Longitudinal Study Methods • Bivariate • Characteristics of men at baseline visit • Characteristics of partners • Baseline partners • New partners • Cox Proportional Hazards Model
Longitudinal Study Enrollment 358 men enrolled 272 (76%) study population 98 (36%) 1 follow-up visit 174 (64%) 2 follow-up visits
Time in Study MedianRange Time to First Follow-up 33 days 21-215 days Time in Study 102 days 21-391 days
272 study population 403 partners named 74 (18%) partners locatable 65 (16%) partners treated Partner Management Locatable Treated
Repeat Infection • Overall: 31 (11%) men had repeat Ct infection • 3 men ≥ 1 repeat infection
Incidence of Repeat Infection • Cumulative Incidence: 42.3 per 100 person years • Most infections occurred early
Conclusions • Repeat Ct infection among men from diverse geographic locations was 11% • Partner characteristics were not significantly associated with repeat infection • History of STD, and less than high school education were associated with repeat Ct infection
Future Directions • Genotyping • Evaluating partner characteristics and sexual behaviors during study
Contact • Eileen F. Dunne (edunne@cdc.gov) • 404-639-6184
Acknowledgments Baltimore: Jon Ellen Charlotte Gaydos Nancy Willard Michelle Chung Denver: Kees Rietmeijer Laura Lloyd Stewart Thomas San Francisco: Charlotte Kent Nat Birkjukow Seatle Jeanne Marrazzo CDC: Julie Schillinger Lauri Markowitz Maya Sternberg Johanna Chapin John Papp Angelica Wendt