Perceived Partner Non-Monogamy and Incident Sexual Partnership Concurrency: Results from The Project on Partner Dynamics (POPD)
Concurrent sexual partnerships may contribute to STI and HIV transmission. Most concurrency studies have used cross-sectional designs and, as a result, little is known about motives for initiating concurrency.
We analyzed longitudinal data for 537 adults aged 18-30 to estimate the prevalence and incidence of concurrency, and its association with perceived partner non-monogamy (PPNM). Participants were interviewed every four months for one year. PPNM was defined as perceiving that a current partner was non-monogamous in the preceding 4 months. Concurrency was defined as an overlap in reported sexual partnership dates. Generalized estimating equations were used to estimate risk ratios (RRs), with backwards elimination to create a final model.
Participants (52% female, 30% non-Hispanic White; 28% non-Hispanic Black, 28% Hispanic/Latino, and 14% other race/ethnicity) had a median age of 23 years and lifetime mean of 15 sex partners. For the four interviews (baseline, 4-, 8-, and 12-months), prevalence of concurrency was, respectively, 38.7%, 26.9%, 23.1%, and 24.5%. The incidence of concurrency among persons with at most 1 partner at the previous interview was 8.5%, 10.9%, 17.8% at 4-, 8-, and 12-months, respectively. Participants with PPNM were more likely to initiate concurrency in crude analyses (RR=4.5; 95% Confidence Interval (CI)=3.1, 6.5), and analyses adjusted for male sex and lifetime number of sex partners (aRR=1.3, 95%CI= 1.1, 1.4).
Along with male sex and lifetime number of sex partners, perceived partner non-monogamy significantly predicted 4-month incident concurrency. Among young adults, one’s own concurrency may be influenced by perceived partners’ concurrency.
Describe the contribution of perceived partner non-monogamy to the incidence of concurrent sexual partnerships in young, heterosexual adults. Identify other factors associated with the incidence of concurrent sexual partnerships in young heterosexual adults
Keyword(s): Sexual Risk Behavior, Behavioral Research
Qualified on the content I am responsible for because: I am a doctoral candidate in Epidemiology, studying sexual partnerships and sexual health epidemiology, with a specific interest in behavioral factors that may contribute to STI/HIV. I have conducted research in sexual health and STI/HIV for approximately 7 years, and have had a dual position as a sexual health educator at a university health center for approximately 3 years.
Any relevant financial relationships? No
I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.