Bradley P. Stoner

Relationships of Stigma and Shame to Gonorrhea and HIV Screening

OBJECTIVES The purpose of this study was to assess the relationships between stigma and shame associated with seeking treatment for sexually transmitted diseases (STDs) and undergoing testing for gonorrhea and HIV. METHODS Participants were 847 males and 1126 females (mean age: 24.9 years) in 7 cities. Two scales assessed STD-related stigma and STD-related shame. RESULTS Rates of stigma and shame were higher among participants without a gonorrhea test in the past year and among those without an HIV test. Sex, age, health service use, previous suspicion of gonorrhea, and low levels of stigma were independently associated with gonorrhea testing. Age, enrollment site, use of health services, gonorrhea testing, and low levels of stigma were independently associated with HIV testing. CONCLUSIONS Shame is part of the experience of seeking STD-related care, but stigma may be a more powerful barrier to obtaining such care.

Cerebrospinal Fluid Abnormalities in Patients with Syphilis: Association with Clinical and Laboratory Features

OBJECTIVE To define clinical and laboratory features that identify patients with neurosyphilis. METHODS Subjects (n=326) with syphilis but no previous neurosyphilis who met 1993 Centers for Disease Control and Prevention criteria for lumbar puncture underwent standardized history, neurological examination, venipuncture, and lumbar puncture. Neurosyphilis was defined as a cerebrospinal fluid (CSF) white blood cell count >20 cells/ microL or reactive CSF Venereal Disease Research Laboratory (VDRL) test result. RESULTS Sixty-five subjects (20.1%) had neurosyphilis. Early syphilis increased the odds of neurosyphilis in univariate but not multivariate analyses. In multivariate analyses, serum rapid plasma reagin (RPR) titer > or =1 : 32 increased the odds of neurosyphilis 10.85-fold in human immunodeficiency virus (HIV)-uninfected subjects and 5.98-fold in HIV-infected subjects. A peripheral blood CD4+ T cell count < or =350 cells/ microL conferred 3.10-fold increased odds of neurosyphilis in HIV-infected subjects. Similar results were obtained when neurosyphilis was more stringently defined as a reactive CSF VDRL test result. CONCLUSION Serum RPR titer helps predict the likelihood of neurosyphilis. HIV-induced immune impairment may increase the risk of neurosyphilis.

Sexual mixing patterns in the spread of gonococcal and chlamydial infections.

OBJECTIVES This study sought to define, among sexually transmitted disease (STD) clinic attendees, (1) patterns of sex partner selection, (2) relative risks for gonococcal or chlamydial infection associated with each mixing pattern, and (3) selected links and potential and actual bridge populations. METHODS Mixing matrices were computed based on characteristics of the study participants and their partners. Risk of infection was determined in study participants with various types of partners, and odds ratios were used to estimate relative risk of infection for discordant vs concordant partnerships. RESULTS Partnerships discordant in terms of race/ethnicity, age, education, and number of partners were associated with significant risk for gonorrhea and chlamydial infection. In low-prevalence subpopulations, within-subpopulation mixing was associated with chlamydial infection, and direct links with high-prevalence subpopulations were associated with gonorrhea. CONCLUSIONS Mixing patterns influence the risk of specific infections, and they should be included in risk assessments for individuals and in the design of screening, health education, and partner notification strategies for populations.

The need and plan for global elimination of congenital syphilis.

In every society, congenital syphilis (CS) has significant medical, economic, societal and emotional burdens; these are poorly characterized but high. Inexplicably, the elimination of CS has failed to attract international attention. Yet, the cornerstones of programs to do this universally are in place, the recent development of new diagnostic tools offers the now-practical possibility of testing every pregnant woman, testing is cost-effective, and programs for the elimination of CS can be joined with other programs to enhance efficiency. The magnitude of the CS burden, globally, rivals that of HIV infection in neonates yet receives little attention. The newly proposed World Health Organization Strategy for the Global Elimination of Congenital Syphilis aims to mobilize resources and provide a plan to address this underrecognized health problem.

It takes a village: understanding concurrent sexual partnerships in Seattle, Washington.

Background Sexually transmitted infections (STIs) are efficiently spread via concurrent partnerships. Goal This study identifies patterns of concurrency in Seattle STI clinics and community samples to enhance partner notification and counseling. Study Design Semistructured interviews with heterosexuals (108 with gonorrhea, chlamydial infection, or nongonococcal urethritis and 120 from high STI prevalence and randomly selected neighborhoods) were tape-recorded, transcribed, and analyzed for content. Results Six main forms of concurrency were identified: experimental, separational, transitional, reciprocal, reactive, and compensatory. Experimental concurrency, overlapping short-term partnerships, was most common. Men practiced concurrency to avoid becoming partnerless during partnership disintegration; more women, especially STI patients, reported reactive concurrency, recruiting new partners rather than leaving partners with other partners. Concurrency clustered by age and when occurring during separation and transitioning between partners was socially acceptable. Conclusions Prevalence of concurrent partnerships in all groups studied suggests linkages to individuals’ life stage and some social acceptability. STI programs should develop prevention messages to reflect different forms of concurrency.

Normalization of cerebrospinal fluid abnormalities after neurosyphilis therapy: does HIV status matter?

To identify factors that affect normalization of laboratory measures after treatment for neurosyphilis, 59 subjects with neurosyphilis underwent repeated lumbar punctures and venipunctures after completion of therapy. The median duration of follow-up was 6.9 months. Stepwise Cox regression models were used to determine the influence of clinical and laboratory features on normalization of cerebrospinal fluid (CSF), white blood cells (WBCs), CSF protein concentration, CSF Venereal Disease Research Laboratory (VDRL) reactivity, and serum rapid plasma reagin (RPR) titer. Human immunodeficiency virus (HIV)-infected subjects were 2.5 times less likely to normalize CSF-VDRL reactivity than were HIV-uninfected subjects. HIV-infected subjects with peripheral blood CD4+ T cell counts of < or =200 cells/ mu L were 3.7 times less likely to normalize CSF-VDRL reactivity than were those with CD4+ T cell counts of >200 cells/ mu L. CSF WBC count and serum RPR reactivity were more likely to normalize but CSF-VDRL reactivity was less likely to normalize with higher baseline values. Future studies should address whether more intensive therapy for neurosyphilis is warranted in HIV-infected individuals.

Anal intercourse among young heterosexuals in three sexually transmitted disease clinics in the United States.

Objective: To examine factors associated with heterosexual anal intercourse (AI). Methods: Between 2001 and 2004, 1084 heterosexual adults aged 18 to 26 attending public sexually transmitted disease clinics in Seattle, New Orleans, and St Louis were interviewed using computer-assisted self interview and tested for STIs; Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium, Trichomonas vaginalis, and genital herpes (HSV-2). Characteristics associated with AI were identified using logistic regression. Results: Overall 400 (37%) reported ever having had AI, 266 (28.9%) reported AI with at least 1 of their last 3 partners, and 19% reported AI with their last partner. Fewer women than men reported condom use at last AI (26% vs. 45%, P <0.001). Ever having AI was associated with sex on the same day as meeting a partner [AOR 3.9 (95% CI, 2.46–6.21)], receiving money for sex [AOR 2.8 (1.40–5.45)], and >3 lifetime sex partners [AOR 2.8 (1.56–5.07)] among women, and sex on the same day as meeting a partner [AOR 2.0 (1.33–3.06]) among men. AI with the last partner was associated with sex toy use [AOR 5.6 (2.63–12.0)] and having concurrent partners [AOR 2.2 (1.21–4.11)] among men, and with sex within a week of meeting [AOR 2.4 (1.28–4.37)], believing the partner was concurrent (AOR 1.9 [1.12–3.22]), and sex toy use [AOR 5.7 (2.31–14.0)] among women. Prevalent vaginal and urethral sexually transmitted infections were not associated with AI. Conclusions: Many young heterosexuals attending sexually transmitted disease clinics reported AI, which was associated with other sexual risk behaviors, suggesting a confluence of risks for HIV infection.

Avoiding risky sex partners: perception of partners’ risks v partners’ self reported risks

Background: Key strategies advocated for lowering personal risk of sexual exposure to STD/HIV include having fewer partners and avoiding risky partners. However, few studies have systematically examined how well people can actually discern their sex partners’ risk behaviours. Methods: We conducted face to face interviews with 151 heterosexual patients with gonorrhoea or chlamydial infection and 189 of their sex partners. Interviews examined the patients’ perceptions of their sex partners’ sociodemographic characteristics and risk behaviours. Patients’ perceptions of partners were then sociometrically compared for agreement with partner self reports, using the kappa statistic for discrete variables and concordance correlation for continuous variables. Results: Agreement was highest for perceived partner age, race/ethnicity, and duration of sexual partnership; and lowest for knowledge of partner’s work in commercial sex, number of other sex partners, and for perceived quality of communication within the partnership. Index patients commonly underestimated or overestimated partners’ risk characteristics. Reported condom use was infrequent and inconsistent within partnerships. Conclusion: Among people with gonorrhoea or chlamydial infection, patients’ perceptions of partners’ risk behaviours often disagreed with the partners’ self reports. Formative research should guide development and evaluation of interventions to enhance sexual health communication within partnerships and within social networks, as a potential harm reduction strategy to foster healthier partnerships.

Measuring Sex Partner Concurrency: It's What's Missing That Counts

Background: Sex partner concurrency is an important determinant of STI transmission dynamics, yet its measurement is not standardized. Goal: We assessed the agreement, compared correlates, and investigated data quality and completeness between 2 common concurrency measures. Study Design: Young adults (ages 18–26) attending public STD clinics between 2001 and 2004 in Seattle, St. Louis, and New Orleans, provided data on 2 or more sex partners in a computer-administered survey interview (N = 680). Concurrency with last partner was measured in 2 ways: (a) a direct question about other sexual contacts during the most recent sexual relationship and (b) overlapping start and end dates of the 2 most recent relationships. Results: Although 56% reported concurrency by direct questioning and 54% by overlapping dates, the &kgr; statistic for agreement between measures was only fair (0.395). Indeed, 29% of those reporting concurrent partners by the direct question did not do so by overlapping dates and 26% of participants concurrent by overlapping dates were not concurrent by the direct question. Each of the measures had dissimilar correlates, and concurrency data were missing or uninterpretable more often for the overlapping dates measure (21.3%) than the direct question (1.8%). Conclusions: Concurrency was common by both measures but the measures were not interchangeable. Although the overlapping dates measure provided information about partnership duration, it is subject to missing or uninterpretable data. The direct question substantially minimized the amount of missing data and may be more appropriate for use with computer-administered survey interview.

Comparative epidemiology of heterosexual gonococcal and chlamydial networks: implications for transmission patterns.

Objective: Networks of sex‐partner interaction affect differential risk of acquiring sexually transmitted infections. The authors evaluated sociodemographic and behavioral factors that correlated with membership in networks of gonococcal and chlamydial transmission. Methods: Face‐to‐face interviews were conducted with 127 patients with gonorrhea and 184 patients with chlamydia (index cases) and their named sex partners, as well as the partners of infected partners. Detailed information was obtained regarding demographic, behavioral, and sexual‐history characteristics of all respondents. Results: Gonococcal‐network members differed significantly from chlamydial‐network members in a number of demographic variables, including race or ethnicity, education, and unemployment status. Gonococcal‐network members were more likely to report past history of crack‐cocaine use, sexual assault, and having been in jail. Gonococcal‐network members also reported having more sex partners during the past 1 year and 3 months than did chlamydial‐network members. Gonococcal and chlamydial mixing matrices demonstrated assortativeness for sex partner selection by race or ethnicity but not by sexual activity level, and no systematic differences between networks were noted. Gonococcal networks were larger than chlamydial networks. Conclusions: Network analyses of gonococcal and chlamydial infections demonstrated significant differences in sociodemographic and behavioral variables. Further research is required to delineate specific predictors of network membership among persons at risk for sexually transmitted infections.