Yujiang Jia

Differing HIV Risks and Prevention Needs among Men and Women Injection Drug Users (IDU) in the District of Columbia

Washington, DC has among the highest HIV/AIDS rates in the US. Gender differences among injection drug users (IDUs) may be associated with adoption of prevention opportunities including needle exchange programs, HIV testing, psychosocial support, and prevention programming. National HIV Behavioral Surveillance data on current IDUs aged ≥18 were collected from 8/09 to 11/09 via respondent-driven sampling in Washington, DC. HIV status was assessed using oral OraQuick with Western Blot confirmation. Weighted estimates were derived using RDSAT. Stata was used to characterize the sample and differences between male and female IDU, using uni-, bi-, and multivariable methods. Factors associated with HIV risk differed between men and women. Men were more likely than women to have had a history of incarceration (86.6 % vs. 66.8 %, p < 0.01). Women were more likely than men to have depressive symptoms (73.9 % vs. 47.4 %, p < 0.01), to have been physically or emotionally abused (66.1 % vs. 16.1 %, p < 0.0001), to report childhood sexual abuse (42.7 % vs. 4.7 %, p < 0.0001), and pressured or forced to have sex (62.8 % vs. 4.0 %, p < 0.0001); each of these differences was significant in the multivariable analysis. Despite a decreasing HIV/AIDS epidemic among IDU, there remain significant gender differences with women experiencing multiple threats to psychosocial health, which may in turn affect HIV testing, access, care, and drug use. Diverging needs by gender are critical to consider when implementing HIV prevention strategies.

Cost-Utility Analysis of A Female Condom Promotion Program in Washington, DC

A retrospective economic evaluation of a female condom distribution and education program in Washington, DC. was conducted. Standard methods of cost, threshold and cost–utility analysis were utilized as recommended by the U.S. Panel on cost-effectiveness in health and medicine. The overall cost of the program that distributed 200,000 female condoms and provided educational services was

Correlates of frequency of HIV testing among men who have sex with men in Washington, DC

414,186 (at a total gross cost per condom used during sex of

Site migration in seeking care services from multiple providers is associated with worse clinical outcomes among HIV-infected individuals in Washington, DC

3.19, including educational services). The number of HIV infections that would have to be averted in order for the program to be cost-saving was 1.13 in the societal perspective and 1.50 in the public sector payor perspective. The cost-effectiveness threshold of HIV infections to be averted was 0.46. Overall, mathematical modeling analyses estimated that the intervention averted approximately 23 HIV infections (even with the uncertainty inherent in this estimate, this value appears to well exceed the necessary thresholds), and the intervention resulted in a substantial net cost savings.

HIV Among Women in the District of Columbia: An Evolving Epidemic?

In Washington, DC, the leading mode of HIV transmission is through men who have sex with men (MSM) behavior. This study explored differences between frequent HIV testers (men testing at least twice a year) and annual or less frequent testers (men testing once a year or less) in DC. Nearly, one-third of MSM reported testing for HIV at least four times in the prior two years. In the multivariable model, frequent testers had significantly higher odds of being aged 18–34 (aOR =1.94), knowing their last partners HIV status (aOR=1.86), having 5+ partners in the last year (aOR=1.52), and having seen a health-care provider in the last year (aOR=2.28). Conversely, frequent testers had significantly lower odds of being newly HIV positive (aOR=0.27), and having a main partner at last sex (vs. casual/exchange partner; aOR=0.59). Medical providers need to be encouraged to consistently offer an HIV test to their patients, especially those who are sexually active and who have not tested recently.

Sociostructural correlates of AIDS progression for African American women living with diagnoses of HIV infection in the District of Columbia.

Washington, DC, is a metropolitan city with a severe HIV epidemic and faces challenges in retaining people living with HIV (PLWH) in quality care. This study assessed site migration in seeking care services and its correlates among PLWH in DC. PLWH diagnosed before 2008 and living through the end of 2010 were analyzed. Six scenarios of site migration were examined as patients visited =2, =3, and =4 different providers for their CD4 cell count and/or viral load (VL) tests in the past 3 years from 2008 to 2010 and 2 years from 2009 to 2010, respectively. Of 6480 patients analyzed from 2008 to 2010, 18.4% had CD4 < 200 cells/mm3, 30.5% had VL > 400 copies/mL, and 76.6% were retained in same care sites; 23.4%, 5.0%, and 0.9% visited =2, =3, and =4 sites in the past 3 years from 2008 to 2010, respectively. Of 5954 patients analyzed from 2009 to 2010, 16.8% had CD4 < 200 cells/mm3, 29.4% had VL > 400 copies/mL, and 81.9% were retained in same care sites; 18.1%, 3.1%, and 0.6% visited =2, =3, and =4 sites in the past 2 years from 2009 to 2010, respectively. Multivariable logistic regression analyses revealed that migration across six scenarios are consistently associated with CD4 < 200 cells/mm3 and VL > 400 copies/mL. Site migration was common and associated with lower CD4 and higher VL among PLWH in DC. Frequent migration might be a factor in achieving optimal health outcomes for a subset of patients. Site migration might potentially limit effective delivery of high quality care and treatment services. The preliminary findings underscore the need for further research to assess the predictors of migration and its impact on stage of care.

Use of geosocial networking (GSN) mobile phone applications to find men for sex by men who have sex with men (MSM) in Washington, DC

The epidemiology of HIV in urban centers of the United States such as the District of Columbia (DC) is dynamic with rates of new HIV and AIDS diagnoses as well as risk factors elevated. Correlates of HIV among heterosexual women extend beyond traditional, individual risk factors to structural factors. The purpose of this study was to compare proportions of HIV and correlates of HIV among women participating in National HIV behavioral surveillance (NHBS) system in 2006–7 (NHBS Cycle 1) and 2010 (NHBS Cycle 2). Analysis of 677 female participants at elevated risk for HIV revealed high prevalence of individual-level HIV-associated risk factors (e.g., sexual behavior) and socio-structural associated risk factors (e.g., homelessness, incarceration, lack of health insurance). While a greater proportion of women were HIV-infected in Cycle 2, after controlling for the distribution of demographic characteristics to adjust for a change in eligibility criteria, the pooled sample did not reveal a significantly increased proportion of HIV-infected women in Cycle 2. Homelessness and condom use were associated with greater relative odds of HIV after adjustment for confounders, and non-injection drug use was associated with reduced odds. Findings inform our understanding of the continuing HIV epidemic in DC and support development of effective interventions to slow the epidemic among women in DC and similar urban centers.

Childhood Sexual Abuse and HIV-Related Risks Among Men Who Have Sex with Men in Washington, DC

Background: Among women living with HIV infection in the District of Columbia (DC), African American women are disproportionately affected, comprising > 90% of reported cases. Sociostructural exploration of local HIV epidemics among African American women has been understudied. We explored sociostructural correlates of health for HIVinfected African American women in DC to inform local HIV prevention and intervention efforts. Methods: HIV surveillance data from the District of Columbia Department of Health for African American women living with HIV were reviewed. We analyzed data for sociostructural correlates for progressing to acquired immune deficiency syndrome (AIDS) (CD4 counts < 200 cells/ml) among African American women. Data were analyzed using SAS 9.2 and mapped by census tracts using ArcGIS. Results: Of 4,619 women living with HIV, 4,204 (91%) were African American; 3,050 (72.5%) had census tract information available and were included. Median age at diagnosis was 36.6 years. Among these 3,050 African American women, 1,814 (59.4%) had ever progressed to AIDS, 1,109 (36.4%) had CD4 counts < 200 cells/μl (AIDS) at most recent clinical visit, and 208 of 1,109 (18.8%) had progressed to AIDS within 12 months of their HIV diagnosis (late testers). Women who progressed to AIDS had a higher probability of being diagnosed at private facilities compared with public facilities (PR=1.1, 95% CI=1.1-1.3) and of being exposed through injection drug use (IDU) compared to being exposed through heterosexual contact (PR=1.3, 95% CI=1.2-1.5). In multivariate and geomapping analyses, poverty, education levels and census tracts were not associated with an AIDS diagnosis. Conclusion: Progression to AIDS is prevalent among HIV-infected African American women in DC. Increased, early routine HIV screening and intensified treatment efforts with African American women living with HIV infection in DC, regardless of socioeconomic status, are warranted, to improve outcomes and decrease disparities.