Liza Solomon

Correlates of hepatitis C virus infections among injection drug users.

Injection drug users are at high risk for hepatitis C virus (HCV) infection. In Baltimore, Maryland, the prevalence of anti-HCV is greater among injection drug users who are black, human immunodeficiency virus (HIV) infected, have injected longer, have injected more frequently, and have injected cocaine than among other injection drug users. HCV infection occurs quickly after the initiation of injecting illicit drugs, with 78% of study participants anti-HCV positive after 2 years of injecting. The prevalence of anti-HCV among injection drug users does not appear to be related to socioeconomic factors or sexual practices. Some injection drug users remain free of anti-HCV even after years of injecting and serologic evidence of other bloodborne pathogens. Some of these injection drug users have HCV infection, demonstrated by HCV RNA in their sera. However, the basis for viral persistence in the absence of anti-HCV and for the absence of HCV infection in long-term drug users is not known. Further studies are indicated to determine the mechanism or mechanisms for the absence of anti-HCV in persons exposed to the virus, because the biologic basis for this condition may elucidate the elements missing in the immune response of the majority of HCV-exposed persons who acquire persistent infection. In addition, interventions to prevent HCV infections should be applied in populations at risk for injection drug use early or before drug use begins.

The trading of sex for drugs or money and HIV seropositivity among female intravenous drug users

OBJECTIVES Data from 538 women in a cohort study recruited in 1988-1989 were analyzed to determined whether trading sex for drugs or money was independently associated with human immunodeficiency virus (HIV) seroprevalence in a population of female intravenous drug users. METHODS The women were grouped according to the number of partners with whom they reported trading sex for drugs or money during the previous 10 years: none, 1 through 49 (low), or 50 or more (high); the prevalence of HIV seropositivity in the three groups was 23.2%, 23.7%, and 47.6%, respectively. Logistic regression was used to compare the low- and high-trade groups separately with the group that reported no trading. RESULTS Low trading was not associated with seroprevalent HIV infection. In a multivariate model, high trading (compared with no trading) was significantly associated with HIV seropositivity after adjustment for cocaine use, history of sexually transmitted diseases, and duration of intravenous drug use. CONCLUSIONS These data indicate that, among intravenous drug-using women, high levels of trading sex for drugs or money were independently associated with HIV infection. This group needs to be targeted for further intensive intervention.

Prevalence of HIV, syphilis, hepatitis B, and hepatitis C among entrants to Maryland correctional facilities

Although high prevalence of hepatitis C virus (HCV) in correctional institutions has been established, data are sparse regarding the comorbidities of hepatitis B virus (HBV), HCV, and human immunodeficiency virus (HIV), all of which may complicate the management of HCV. This study sought to estimate the prevalence and correlates associated with HCV prevalence among entrants into the Maryland Division of Correction and the Baltimore City Detention Center. Participants included all newly incarcerated entrants between January 28 and March 28, 2002. Excess sera with identifiers removed from samples drawn for routine syphilis testing were assayed for antibodies to HIV and HCV and for HBV surface antigen and surface and total core antibodies. Separately, all HIV-positive specimens were tested using the serological testing algorithm for recent HIV seroconversion. Of the 1,081 immates and 2,833 detainees, reactive syphilis serology was noted in 0.6% of the combined population; HIV seroprevalence was 6.6%; HCV prevalence was 29.7%; and 25.2% of detainees and prisoners had antigen or core or surface antibodies to HBV. A multivariate analysis of predictors of HCV positivity indicated that detainees, women, whites, older age groups, those who were HIV seropositive, and individuals with past or present infection with HBV were significantly more likely to be positive for HCV. These data indicate that hepatitis C remains an important public health concern among entrants to jail and prison and is complicated with coinfections that need to be addressed for effective treatment.

Severe adverse life events and depressive symptoms among women with, or at risk for, Hiv infection in four cities in the United States of America

OBJECTIVE To examine frequency and predictors of severe adverse life events and depressive symptoms among HIV-infected women and a comparison group of uninfected women. DESIGN Analysis of baseline data collected from HIV-infected and uninfected women in a prospective cohort study of HIV infection and women, the HIV Epidemiologic Research Study. METHOD The sample of 871 HIV-infected and 439 demographically and behaviorally similar uninfected women were recruited from four metropolitan areas in the USA. Women provided interview information that included sociodemographic characteristics, sexual and drug-using behaviors, and social and psychological functioning. The outcome measures were number of severe adverse life events (e.g., insufficient money for necessities, physical attack or rape, death of a person close to them) and levels of depressive symptoms. RESULTS HIV-infected and uninfected women reported numerous adverse life events and high levels of depressive symptoms. The two groups, however, did not differ on either outcome measure. Low socio-economic status, injecting drug and crack cocaine use, and high risk sexual activity were related to reports of more adverse events and depressive symptoms for both groups. CONCLUSIONS HIV-infected and uninfected women in socially and economically disadvantaged environments experience many adverse events and high levels of depressive symptoms. HIV infection, at least during the early phase, may be less important than socio-environmental factors in predicting negative psychosocial outcomes for women.

Risk factors for shooting gallery use and cessation among intravenous drug users.

BACKGROUND Shooting galleries, locations where intravenous drug users (IVDUs) can rent or borrow needles and syringes, are a high-risk environment for HIV-1 transmission. This study investigates risk factors for lifetime attendance at shooting galleries and differentiates characteristics of those who continue to frequent shooting galleries and those who have stopped. METHODS We interviewed 2615 active IVDUs in Baltimore in 1988 and 1989 and determined patterns of IV drug use, sociodemographics, and HIV-1 serostatus as related to persistence vs cessation of shooting gallery use. RESULTS Over half (52%) of active IVDUs reported ever using a shooting gallery, with 33% reporting use within the prior 3 months. In multivariate analysis, lifetime shooting gallery use was associated with male gender, homosexuality/bisexuality, low socioeconomic status, Black race, and heavier drug involvement. Persistent shooting gallery users were more frequently male, homosexual/bisexual, homeless, less educated, and started IV drug use more recently compared with those who ceased going to shooting galleries. CONCLUSIONS Shooting gallery attendance may be pragmatic from a sociological and economic perspective, but it carries with it a heightened risk of acquiring HIV-1 infection.

Utilization of health services in a cohort of intravenous drug users with known HIV-1 serostatus.

BACKGROUND Intravenous drug users (IVDUs) with human immunodeficiency virus (HIV) infection and AIDS often have no health insurance or rely on public programs to finance their health care. We examined the independent contributions of HIV serostatus, clinical symptoms, CD4 cell counts, and health insurance to utilization of health services among 1881 intravenous drug users in Baltimore, Maryland. METHODS Participants in an ongoing natural history study of HIV were informed of HIV serostatus and seropositives were informed of CD4 cell counts; 6 months later, participants were administered a questionnaire concerning self-reported use of health services, insurance coverage, and HIV-related symptoms. RESULTS Of 1881 participants, 67% had health insurance (including Medicaid), 48% had at least one outpatient visit, and 12% had at least one inpatient visit within the prior 6 months. The proportion of the study population that was HIV-1 seropositive was 32%. In multivariate analysis, the single most important predictor of health care utilization was the presence of two or more HIV-related clinical symptoms. HIV positive serostatus alone or known low CD4 counts were not significantly associated with use of health care services. CONCLUSIONS These data suggest that HIV seropositive IVDUs are not receiving recommended preventive care. Additional efforts will be needed to ensure that HIV-seropositive drug users participate in currently recommended protocols for early treatment of asymptomatic HIV-1 infection.

Health services use by urban women with or at risk for HIV-1 infection: the HIV Epidemiology Research Study (HERS).

OBJECTIVE To characterize health services use by urban women with or at risk for HIV-1 infection enrolled in a prospective multicenter study. METHODS 1310 women 16 to 55 years of age who were at risk for HIV-1 infection were recruited between April 1993 and January 1995 at four urban centers (Baltimore, Maryland; The Bronx, New York; Detroit, Michigan; and Providence, Rhode Island). HIV-1-seropositive women without AIDS-defining illness were oversampled in a ratio of 2:1 in comparison with HIV-1-seronegative women. At a baseline study visit, the women received physical and laboratory examinations, including CD4+ counts, and were interviewed regarding HIV risk behavior, health services use, and clinical data. RESULTS 863 women were HIV-1-seropositive and 430 were HIV-1-seronegative. Fifty-two percent of the women reported injection drug use (IDU) since 1985, and 48% acquired HIV through sexual contact. Seventy-seven percent were African American, 23% were white, and 16% were Hispanic. The median age was 35 years. HIV-seronegative women were significantly less likely to have health insurance (19%) than were HIV-seropositive women (30%; p < .001). Among the HIV-seropositive women, 68% had CD4+ cell counts of <500/microl, and 64% were asymptomatic. Sixty-four percent of the HIV-seronegative women had had an outpatient hospital visit in the past 6 months, as had 86% of HIV-seropositive women (p < 0.001). Hospitalization in the past 6 months was also higher in HIV-seropositive women (22% vs. 12%; p < .001). Despite heavy use of health services, only 49% of women with CD4+ counts of <200/microl reported current use of antiretroviral therapy, and only 58% reported current use of Pneumocystis carinii pneumonia (PCP) prophylaxis. Among HIV-seropositive women, and after adjusting for CD4+ count, HIV symptoms, race, and study site, IDUs were significantly less likely to have a regular doctor and a recent outpatient visit and more likely to be hospitalized and use the emergency department (ED) than were non-IDUs. In multivariate analyses of HIV-seropositive persons, African American women had similar access to care and use of antiretroviral therapy and PCP prophylaxis than did white women but were less likely to have an outpatient department visit in the previous 6 months and to be taking PCP and opportunistic infection (OI) prophylaxis. Health services access and use of HIV-related therapies did not significantly differ between Hispanic and white women with HIV infection. CONCLUSION Although both HIV-seropositive and HIV-seronegative women had high levels of use of medical services, current use of antiretrovirals and OI prophylaxis was low throughout, and IDUs used HIV-related primary health services less and were more likely to receive emergency or episodic care. IDU and African American race were independently associated with decreased use of medical services.

Trends of HIV-1 Risk Reduction among Initiates into Intravenous Drug Use 1982–1987

To assess how injection practices may have changed during the course of the AIDS epidemic, active intravenous drug users (IVDUs) recruited from the community were asked to report year of first injection as well as specific details about the first 3 months after initial injection: frequencies of injection, using sterile needles, sharing needles and other equipment. For the analysis, the users were sorted into successive cohorts of initiation (by year of first injection), and tests for trends were completed using Mantel-Haenszel statistics. Among the 421 IVDUs who reported first injection between 1982 and 1987, the use of new sterile needles to self-administer drugs increased (p less than .05) along with its corollary behavior (i.e., using equipment one is sure that no one else had used before). Conversely, there was a decrease in the proportion of those who always used equipment previously used by another IVDU (p less than .05) and a decrease in the number of needle-sharing partners (p less than .01). Over the 6 years, heroin as first drug decreased and cocaine increased (p less than .01). Although these data are from a cross-sectional interview study, they suggest a shift toward lower risk practices among new IVDUs between 1982 and 1987. The shift from heroin to cocaine is compatible with other evidence on the cocaine epidemic.

Racial disparities in HIV incidence among young men who have sex with men : The baltimore young Men's survey

Recent reports have demonstrated racial disparities in the prevalence of HIV infection among men who have sex with men (MSM). The objectives of this study are to investigate whether racial disparities exist in HIV incidence among young MSM in Baltimore, MD and to examine potential explanations for differences. Data were collected by the Baltimore Young Mens Survey, a cross-sectional venue-based survey (1996 to 2000) enrolling MSM aged 15 to 29 years. HIV incidence was ascertained using the serologic testing algorithm for recent HIV seroconversion. HIV incidence was 4.2% per year (95% confidence interval [CI]: 1.2 to 10.5) among 843 participants. There were substantial racial differences in HIV incidence, ranging from 0 among Hispanics to 11.0% per year (95% CI: 5.5 to 19.7) among non-Hispanic blacks. In multivariate analysis, among MSM at risk for HIV acquisition, race was not associated with unprotected anal intercourse. Independent risks included having more than 4 recent male sexual partners (adjusted odds ratio [AOR] = 1.6, 95% CI: 1.0 to 2.4) and being under the influence of drugs while having sex (AOR = 1.6, 95% CI: 1.1 to 2.3). Non-Hispanic blacks were no more likely than non-Hispanic whites to report these risk behaviors. Possible alternative explanations for the observed racial disparities in HIV incidence and implications for prevention are explored.

HIV and AIDS surveillance among inmates in Maryland prisons.

The prevalence of those with human immunodeficiency virus (HIV) infection and acquired immunodeficiency syndrome (AIDS) is higher among inmates of correctional facilities than among the general population. This raises the need to identify inmates living with or at risk of HIV/AIDS and to provide counseling and appropriate survices for HIV treatment and prevention. The Maryland Division of Corrections (DOC) offers voluntary testing to all inmates on entry and tests inmates when clinically indicated. We reviewed all 1998 HIV antibody tests and confirmed AIDS cases in the Maryland DOC. Inmate demographics, testing acceptance, rates of seropositivity, and AIDS cases and comparisons based on gender, racelethnicity, and age were examined. Comparisons were also made to HIV testing and AIDS cases from the nonincarcerated Maryland population. Trends in DOC AIDS diagnoses and AIDS-related deaths over time were also examined. Of the inmates, 39% were voluntarily tested for HIV on entry to the Maryland DOC in 1998 (38% of males and 49% of females). Overall, HIV seropositivity was 33% (5% for females and 3% for males). The 888 cumulative AIDS cases diagnosed in the DOC inmate population were concentrated among males (90% vs. 77% statewide), African Americans (91% vs. 75% statevide), and among IDUs (84% vs. 39% statewide). Due to high rates of HIV and AIDS, inmate populations are a crucial audience for HIV/AIDS testing, treatment, and prevention efforts, especially women. Prison-based programs can identify significant numbers of HIV and AIDS cases and bring HIV prevention interventions to a population characterized by frequent high-risk behavior.