Overcoming barriers to HIV testing: preferences for new strategies among clients of a needle exchange, a sexually transmitted disease clinic, and sex venues for men who have sex with men

Point of care testing: diagnosis outside the virology laboratory

Numerous point-of-care tests (POCTs) are available to diagnose viral infections in both hospital and community settings. The ideal POCT is rapid, sensitive, specific, and simple to perform. This chapter will describe the benefits of POCTs, factors that can influence the accuracy of POCTs and highlight some limitations of POCT strategies. The sensitivity, specificity, and turn-around time of available POCTs are included for common conditions including respiratory viral infections (e.g. influenza, RSV) and blood-borne viral infections (e.g. HIV).

HIV prevention in gay bathhouses and sex clubs across the United States

Gay bathhouses (including sex clubs) contributed to HIV prevention from the early days of the AIDS epidemic, but the extent to which prevention interventions are implemented in bathhouses is unknown. Using telephone survey methodology, bathhouse managers provided data about HIV prevention in their bathhouses. All the bathhouses provided free condoms, and nearly all displayed educational posters in public areas and had informational pamphlets available for patrons. A few of the bathhouses offered outreach services and counseling services. Almost all promoted testing for HIV/sexually transmitted infection (which included providing information about where to get tested), and 75.5% had HIV testing programs in their venues. Most of the HIV testing programs were started during the past 5 years, initiated by the bathhouse management or a community agency, and operated by community-based agencies. About one third of the programs offered rapid HIV testing. The results of the telephone survey revealed that all the bathhouses engaged in prevention and many offered a wide range of prevention services, suggesting that managers have embraced the issue of HIV and collaborated in bringing prevention to high-risk men. The absence of studies evaluating these prevention efforts remains a concern and an obstacle for efficient use of the prevention resources.

HIV results by phone: can we predict who will test HIV-negative?

INTRODUCTION

In order to review the requirement for all patients to return for HIV test results, we sought to describe the number of cases of HIV infection detected at Sydney Sexual Health Centre among people who did not disclose known risk factors before testing.

METHOD

The clinic database identified all HIV testing episodes between January 2004 and January 2007, along with gender, gender of sexual partners and test result. Pro-forma medical records were reviewed for each person who tested positive for gender of sexual partners, condom use, and sexual contact with a person from a country known to have a high HIV prevalence and injecting drug use.

RESULTS

During the 3-year period, a total of 13 290 HIV tests were performed. In men who have sex with men, 6194 tests were performed and 55 (0.88%) tested positive. In women and heterosexual men 7096 tests were performed, and only four (0.06%) tested positive. All four reported known risks for HIV before testing.

CONCLUSION

Clients with no recognised risk factors for HIV are unlikely to test positive at our Australian sexual health clinic. Providing the option for low risk people to obtain their results other than face to face has advantages for both the clinic in terms of service provision and the clients in terms of time and the proportion who receive their result.

HIV risk and the overlap of injecting drug use and high-risk sexual behaviours among men who have sex with men in Zanzibar (Unguja), Tanzania

BACKGROUND

Men who have sex with men and inject drugs (MSM-IDU) are particularly vulnerable to HIV infection and have the potential to transmit HIV across multiple populations through their male and female sexual partners and injection drug-using partners.

METHODS

Respondent-driven sampling was used to recruit men who reported engaging in anal sex with another man in the past 3 months, aged ≥15 years, and living in Unguja, Zanzibar. Participants responded to a face-to-face interview about their HIV and injecting risk behaviours and were tested for HIV, Hepatitis B (HBV) and C (HCV) and syphilis.

RESULTS

Among the 509 MSM who enrolled in the survey, 14% (n=66) reported injecting drugs in the past 3 months among which 66% used heroin, 60% used a needle after someone else had and 68% passed a needle to someone else after using it. MSM-IDU were significantly more likely to have two or more non-paying male receptive sex partners and to have engaged in group sex in the past month, to have symptoms of a sexually transmitted infection in past 6 months, to have been arrested or beaten in the past 12 months and to be infected with HIV and co-infected with HIV and HCV compared to MSM who did not inject drugs. MSM-IDU were less likely to have used a condom at last sex with a non-paid female partner, to know where to get a confidential HIV test and to have ever been tested for HIV compared to MSM who did not inject drugs.

CONCLUSION

MSM-IDU, and MSM in general, in Unguja practice multiple high-risk behaviours that put them at risk for blood-borne and sexual transmission of HIV and HCV infection. Targeted interventions for MSM-IDU must account for the overlap of high-risk sexual and drug-using networks and integrate injection drug use and HIV services.

Who Chooses a Rapid Test for HIV in Los Angeles County, California?

The purpose of this study was to determine who chooses a rapid test for HIV when given a choice in a community-based or mobile van setting in Long Beach, California. Individuals were given a choice of either rapid or standard HIV testing either alone or in conjunction with testing for sexually transmitted diseases (STD). Of the 2,752 HIV tests performed between March 2005 and March 2009, 917 (33%) were rapid tests. Preference for rapid HIV testing was among men who have sex with men (MSM), who reported using alcohol in the last 48 hr but who did not endorse the use of illicit drugs; individuals reporting sex trading were also more likely to choose the rapid HIV test. African Americans, regardless of sexual identification, were significantly less likely to choose an HIV rapid test. Strategies are needed to encourage HIV rapid testing among both noninjection and injection drug users, and other at-risk groups.

The role of commercial sex venues in the HIV epidemic among men who have sex with men

BACKGROUND

Commercial sex venues such as bathhouses and sex clubs have long been considered important facilitators of HIV transmission among men who have sex with men in the United States. Recent probability surveys of commercial-sex-venue patrons in King County, WA that included data on behavior both within and outside these venues provide an empirical basis for the development of mathematical models to estimate the role that commercial sex venues play in the HIV epidemic.

METHODS

We constructed deterministic compartmental mathematical models of HIV transmission to estimate both current incidence among King County men who have sex with men and incidence in 5 counterfactual scenarios in which commercial-sex-venues were presumed not to exist. We parameterized the models using a range of values for the proportion of commercial sex venues partnerships replaced in the absence of these venues, and the number of acts of unprotected anal intercourse per other types of partnership. Yearly attributable number was calculated as the difference between incident HIV cases in the main models and each corresponding counterfactual model. We performed extensive sensitivity analyses using Latin hypercube sampling.

RESULTS

Replacement of 25% of commercial sex venue partners in the absence of these venues resulted in attributable number values near zero per year. Replacement of 50% or more of commercial sex venue partners resulted in negative yearly attributable numbers, indicating a net increase in incident HIV infections in the absence of these venues. Results of the sensitivity analyses were consistent with the main findings.

CONCLUSIONS

Our findings imply that commercial sex venues contribute little to the burden of HIV among men who have sex with men in King County, WA.

Opt-out testing for stigmatized diseases: a social psychological approach to understanding the potential effect of recommendations for routine HIV testing

OBJECTIVE

Little research has studied experimentally whether an opt-out policy will increase testing rates or whether this strategy is especially effective in the case of stigmatized diseases such as HIV.

DESIGN AND MAIN OUTCOME MEASURES

In Study 1, a 2 x 2 factorial design asked participants to make moral judgments about a person's decision to test for stigmatized diseases under an opt-in versus an opt-out policy. In Study 2, a 2 x 2 factorial design measuring testing rates explored whether opt-out methods reduce stigma and increase testing for stigmatized diseases.

RESULTS

Study 1 results suggest that getting tested draws suspicion regarding moral conduct in an opt-in system, whereas not getting tested draws suspicion in an opt-out system. Study 2 results suggest that an opt-out policy may increase testing rates for stigmatized diseases and lessen the effects of stigma in people's reluctance to test.

DISCUSSION

A social psychological approach to health services can be used to show how testing policies can influence both the stigmatization associated with testing and participation rates. An understanding of how testing policies may affect patient decision making and behavior is imperative for creating effective testing policies.

Home testing for HIV infection in resource-limited settings

Among an estimated 33 million individuals who are infected with HIV worldwide, only 10% are aware of their status. HIV testing is the cornerstone to preventing further transmission and to caring for those infected, particularly as access to treatment improves in resource-limited settings. However, efforts to expand testing through facilities-based testing have not achieved adequate testing coverage, prompting efforts to reach more individuals through strategies such as home-based HIV testing. Home testing is showing promising early results in some high-prevalence, resource-limited settings. This article reviews the mechanisms and literature to date of this door-to-door approach.

HIV testing near the patient: changing the face of HIV testing

Virological, epidemiologic, and operational barriers have slowed the progress toward effective management and eradication of HIV infection, despite significant advances in diagnosis since the early 1980s. Because early diagnosis profoundly affects the health care and survival of infected/high-risk individuals, and because the time required for conventional testing remains a barrier in many settings, rapid HIV testing has been developed for use both in the clinical laboratory and at the point of care. Recent studies have identified applications, advantages, and limitations of these assays, which may influence the development of new and more effective public health testing and screening protocols. In the United States, the Food and Drug Administration has approved the use of six rapid HIV tests. This review summarizes these modern rapid point-of-care HIV tests and their role in preventing the spread of HIV and in detecting, managing, and treating patients affected by the HIV pandemic.

Factors influencing consent to HIV testing among wives of heavy drinkers in an urban slum in India

The study examined the influence of socio cultural factors, perception of risk and exposure to violence on consent to HIV testing among at risk women in an urban slum. Married women chosen via a multistage probability sampling in a section of Bangalore, India, between 18 and 44 years, sexually active and considered to be at risk because of their husband's hazardous drinking were recruited for the study. Written informed consent was obtained and measures of risk behavior and violence were administered. Pretest HIV counseling was then conducted and consent for HIV testing was sought. Factors influencing refusal of and consent to HIV testing were documented. Data collected on 100 participants indicated that over half the sample (58%) refused consent for HIV testing. There were no significant differences between the groups who consented and those who refused on perception of risk and exposure to violence. Reasons women refused testing include the following: spouse/family would not allow it (40%), believed that they were not at risk or would test negative (29%) and underwent HIV testing during an earlier pregnancy (21%). Among those who consented for HIV testing, 79% did so because the testing site was easily accessible, 67% consented because testing was free and because the importance of HIV testing was understood. The findings highlight the role of social, logistic and awareness related factors in utilizing voluntary counseling and testing services by women in the slum community. They have important implications for HIV testing, particularly among at risk monogamous women.

Health system and personal barriers resulting in decreased utilization of HIV and STD testing services among at-risk black men who have sex with men in Massachusetts

Testing for HIV and other sexually transmitted diseases (STD) remains a cornerstone of public health prevention interventions. This analysis was designed to explore the frequency of testing, as well as health system and personal barriers to testing, among a community-recruited sample of Black men who have sex with men (MSM) at risk for HIV and STDs. Black MSM (n = 197) recruited via modified respondent-driven sampling between January and July 2008 completed an interviewer-administered assessment, with optional voluntary HIV counseling and testing. Logistic regression procedures examined factors associated with not having tested in the 2 years prior to study enrollment for: (1) HIV (among HIV-uninfected participants, n = 145) and (2) STDs (among the entire mixed serostatus sample, n = 197). The odds ratios and their 95% confidence intervals obtained from this analysis were converted to relative risks. (1) HIV: Overall, 33% of HIV-uninfected Black MSM had not been tested for HIV in the 2 years prior to study enrollment. Factors uniquely associated with not having a recent HIV test included: being less educated; engaging in serodiscordant unprotected sex; and never having been HIV tested at a community health clinic, STD clinic, or jail. (2) STDs: Sixty percent had not been tested for STDs in the 2 years prior to study enrollment, and 24% of the sample had never been tested for STDs. Factors uniquely associated with not having a recent STD test included: older age; having had a prior STD; and never having been tested at an emergency department or urgent care clinic. Overlapping factors associated with both not having had a recent HIV or STD test included: substance use during sex; feeling that using a condom during sex is "very difficult"; less frequent contact with other MSM; not visiting a health care provider (HCP) in the past 12 months; having a HCP not recommend HIV or STD testing at their last visit; not having a primary care provider (PCP); current PCP never recommending they get tested for HIV or STDs. In multivariable models adjusting for relevant demographic and behavioral factors, Black MSM who reported that a HCP recommended getting an HIV test (adjusted relative risk [ARR] = 0.26; p = 0.01) or STD test (ARR = 0.11; p = 0.0004) at their last visit in the past 12 months were significantly less likely to have not been tested for HIV or STDs in the past 2 years. Many sexually active Black MSM do not regularly test for HIV or STDs. HCPs play a pivotal role in encouraging testing for Black MSM. Additional provider training is warranted to educate HCPs about the specific health care needs of Black MSM, in order to facilitate access to timely, culturally competent HIV and STD testing and treatment services for this population.

Increasing the reach of HIV testing to young Latino MSM: results of a pilot study integrating outreach and services

BACKGROUND

In the U.S., HIV infections are increasing among men who have sex with men (MSM), particularly young, racial/ethnic minority MSM.

OBJECTIVE

To examine the feasibility of increasing HIV testing among young Latino MSM by integrating tailored outreach strategies with testing, counseling, and HIV medical services.

DESIGN

Descriptive study comparing demographic characteristics, behaviors, and HIV test results of clients from the intervention period with clients who tested during other time periods.

RESULTS

Clients in the intervention period were younger and more likely to be Latino than those in other time periods. In addition, clients who received outreach were more likely than those who did not receive outreach to report methamphetamine use, sex with an HIV-positive person, and sex with a sex worker.

CONCLUSION

Venue-based and selective media outreach, in combination with linking rapid testing to HIV care, may help overcome some of the barriers to testing among high-risk young Latino MSM.

A comparison of patient acceptance of fingerstick whole blood and oral fluid rapid HIV screening in an emergency department

BACKGROUND

Although whole blood rapid HIV testing has a greater sensitivity and specificity compared with oral fluid (OF) testing, patients prefer HIV testing using OF specimen collection. Whether patient preference for noninvasive collection methods affects acceptance of HIV screening in clinical practice, however, is unknown.

OBJECTIVE

To determine whether patient acceptance of fingerstick whole blood (FWB) and OF rapid HIV screening differs in an emergency department setting.

METHODS

From May 1 to June 30, 2007, triage-based testers offered rapid HIV screening to patients. OF and FWB tests were available on alternate days. Eligible patients were medically stable, > or =15 years of age, and not known to be HIV infected.

RESULTS

: Two thousand two hundred one patients were referred for HIV screening: 1089 on OF days and 1112 on FWB screening days. Screening rates with OF and FWB were similar (61.9% vs. 59.1%, P = 0.18). Although most reasons why patients declined screening were similar for the groups, the specimen collection method was the primary reason for refusal by 25 patients who declined FWB screening compared with none of the patients who declined OF screening.

CONCLUSIONS

Among emergency department patients, the preference for 1 rapid test collection modality over another has a minimal effect on actual screening rates.

HIV testing factors associated with delayed entry into HIV medical care among HIV-infected persons from eighteen states, United States, 2000-2004

Despite the importance of timely entry into care after HIV diagnosis, the timing of care entry has not been described recently in a large, diverse population of persons with HIV. Dates of HIV diagnosis and entry into HIV care were obtained by interview of HIV-infected adults, most of whom had entered care for HIV, in 18 U.S. states from 2000 through 2004. Time to care entry was analyzed as a dichotomous variable; delayed care entry was defined as care entry greater than 3 months after HIV diagnosis. Multivariable logistic regression models were used to describe HIV testing-related factors associated with delayed care entry. Among 3942 respondents, 28% had delayed care entry. Diagnostic testing-related characteristics associated with delayed care entry included anonymous and first-time HIV testing. Providers of HIV testing should be aware that those who test positive anonymously and those whose first HIV test is positive may have increased risk for delayed HIV care entry. Developing programs that reinforce timely linkage to HIV care, targeted at those at increased risk for delaying care entry, should be a public health priority.

HIV testing in a high-incidence population: is antibody testing alone good enough?

BACKGROUND

The Centers for Disease Control and Prevention recently recommended the expansion of human immunodeficiency virus (HIV) antibody testing. However, antibody tests have longer "window periods" after HIV acquisition than do nucleic acid amplification tests (NAATs).

METHODS

Public Health-Seattle & King County offered HIV antibody testing to men who have sex with men (MSM) using the OraQuick Advance Rapid HIV-1/2 Antibody Test (OraQuick; OraSure Technologies) on oral fluid or finger-stick blood specimens or using a first- or second-generation enzyme immunoassay. The enzyme immunoassay was also used to confirm reactive rapid test results and to screen specimens from OraQuick-negative MSM prior to pooling for HIV NAAT. Serum specimens obtained from subsets of HIV-infected persons were retrospectively evaluated by use of other HIV tests, including a fourth-generation antigen-antibody combination assay.

RESULTS

From September 2003 through June 2008, a total of 328 (2.3%) of 14,005 specimens were HIV antibody positive, and 36 (0.3%) of 13,677 antibody-negative specimens were NAAT positive (indicating acute HIV infection). Among 6811 specimens obtained from MSM who were initially screened by rapid testing, OraQuick detected only 153 (91%) of 169 antibody-positive MSM and 80% of the 192 HIV-infected MSM detected by the HIV NAAT program. HIV was detected in serum samples obtained from 15 of 16 MSM with acute HIV infection that were retrospectively tested using the antigen-antibody combination assay.

CONCLUSIONS

OraQuick may be less sensitive than enzyme immunoassays during early HIV infection. NAAT should be integrated into HIV testing programs that serve populations that undergo frequent testing and that have high rates of HIV acquisition, particularly if rapid HIV antibody testing is employed. Antigen-antibody combination assays may be a reasonably sensitive alternative to HIV NAAT.

Price, performance, and the FDA approval process: the example of home HIV testing

The Food and Drug Administration (FDA) is considering approval of an over-the-counter, rapid HIV test for home use. To support its decision, the FDA seeks evidence of the test's performance. It has asked the manufacturer to conduct field studies of the test's sensitivity and specificity when employed by untrained users. In this article, the authors argue that additional information should be sought to evaluate the prevalence of undetected HIV in the end-user

POPULATION

The analytic framework produces the elementary but counterintuitive finding that the performance of the home HIV test- measured in terms of its ability to correctly detect the presence and absence of HIV infection among the people who purchase it-depends critically on the manufacturer's retail price. This finding has profound implications for the FDA's approval process.

Health care access and sexually transmitted infection screening frequency among at-risk Massachusetts men who have sex with men

OBJECTIVES

We sought to assess risk exposures, health care access, and screening rates for HIV and sexually transmitted infections (STIs) among men who have sex with men (MSM) in Massachusetts.

METHODS

We used a modified respondent-driven sampling method to collect data between March 2006 and May 2007. Overall, 126 MSM completed a survey.

RESULTS

Seventy percent of participants reported unprotected receptive anal intercourse with at least 1 nonmonogamous male partner; 50% reported having had a previous STI. Although 98% had visited a health care provider in the previous year, 39% had not been screened for STIs during the previous 2 years. Bisexual respondents were less likely to have told their health care providers that they engage in male-to-male sexual contact (OR = 4.66; P < .001), less likely to have been tested for STIs during in the previous 2 years (OR = 6.91; P < .001), and more likely to engage in insertive anal intercourse without a condom with an HIV-infected partner (OR = 5.04; P < .005) than were non-bisexual respondents.

CONCLUSIONS

Clinicians need to assess sexual risk-taking behaviors and more routinely screen for STIs among sexually active men regardless of disclosure of a history of having sex with men.

Implementation of rapid HIV testing programs in community and outreach settings: perspectives from staff at eight community-based organizations in seven U.S. cities

OBJECTIVES

The goals of this research were to evaluate perceptions of staff about the effectiveness of methods used by eight community-based organizations (CBOs) to implement human immunodeficiency virus (HIV) counseling and rapid testing in community and outreach settings in seven U.S. cities, and to identify operational challenges.

METHODS

A survey was administered to CBO staff to determine their perceptions about the effectiveness of methods used to select testing venues, promote their testing programs, recruit people for testing, provide test results, and link HIV-positive people to health care. Using a Likert scale, respondents rated the effectiveness of methods, their agreement with statements about using mobile testing units (MTUs) and rapid HIV test kits, and operational challenges.

RESULTS

Most respondents perceived the methods they used for selecting testing venues, and particularly using recommendations from people receiving testing, to be effective. Most respondents also thought their promotional activities were effective. Respondents believed that using MTUs improved their capacity to reach high-risk individuals, but that MTUs were associated with substantial challenges (e.g., costs to purchase and maintain them). Programmatic challenges included training staff to provide counseling and testing, locating and providing confirmatory test results to people with reactive rapid tests, and sustaining testing programs.

CONCLUSIONS

CBO staff thought the methods used to select venues for HIV testing were effective and that using MTUs increased their ability to provide testing to high-risk individuals. However, using MTUs was expensive and posed logistical difficulties. CBOs planning to implement similar programs should take these findings into consideration and pay particular attention to training needs and program sustainability.

Implementing rapid HIV testing in outreach and community settings: results from an advancing HIV prevention demonstration project conducted in seven U.S. cities

OBJECTIVES

The goals of this project were to assess the feasibility of conducting rapid human immunodeficiency virus (HIV) testing in outreach and community settings to increase knowledge of HIV serostatus among groups disproportionately affected by HIV and to identify effective nonclinical venues for recruiting people in the targeted populations.

METHODS

Community-based organizations (CBOs) in seven U.S. cities conducted rapid HIV testing in outreach and community settings, including public parks, homeless shelters, and bars. People with reactive preliminary positive test results received confirmatory testing, and people confirmed to be HIV-positive were referred to health-care and prevention services.

RESULTS

A total of 23,900 people received rapid HIV testing. Of the 267 people (1.1%) with newly diagnosed HIV infection, 75% received their confirmatory test results and 64% were referred to care. Seventy-six percent were from racial/ethnic minority groups, and 58% identified themselves as men who have sex with men, 72% of whom reported having multiple sex partners in the past year. Venues with the highest proportion of new HIV diagnoses were bathhouses, social service organizations, and needle-exchange programs. The acceptance rate for testing was 60% among sites collecting this information.

CONCLUSIONS

Findings from this demonstration project indicate that offering rapid HIV testing in outreach and community settings is a feasible approach for reaching members of minority groups and people at high risk for HIV infection. The project identified venues that would be important to target and offered lessons that could be used by other CBOs to design and implement similar programs in the future.

Incorporating rapid HIV testing into partner counseling and referral services

OBJECTIVES

Partner counseling and referral services (PCRS) provide a unique opportunity to decrease transmission of human immunodeficiency virus (HIV) by notifying sex and drug-injection partners of HIV-infected individuals of their exposure to HIV. We incorporated rapid HIV testing into PCRS to reduce barriers associated with conventional HIV testing and identify undiagnosed HIV infection within this high-risk population.

METHODS

From April 2004 through June 2006, HIV-infected people (index clients) were interviewed, and their partners were notified of their potential exposure to HIV and offered rapid HIV testing at six sites in the United States. The numbers of index clients participating and the numbers of partners interviewed and tested were compared by site. Descriptive and bivariate analyses were performed.

RESULTS

A total of 2,678 index clients were identified, of whom 779 (29%) provided partner locating information. A total of 1,048 partners were elicited, of whom 463 (44%) were both interviewed and tested for HIV. Thirty-seven partners (8%) were newly diagnosed with HIV. The number of index clients interviewed to identify one partner with newly diagnosed HIV infection ranged from 10 to 137 at the participating sites.

CONCLUSIONS

PCRS provides testing and prevention services to people at high risk for HIV infection. Incorporating rapid HIV testing into PCRS and identifying previously undiagnosed infections likely confer individual and public health benefits. Further evaluation is needed to determine the best methods of identifying partners with previously unrecognized HIV infection.

Barriers and Facilitators to Undergoing Hepatitis C Virus (HCV) Testing through Drug Treatment Programs

Given the high prevalence of hepatitis C virus (HCV) infection among drug users, HCV testing is critical in this population. While many drug treatment programs offer HCV testing, patients often do not utilize this essential program-facilitated service. Summarizing data collected in semi-structured interviews and surveys with patients in 25 programs, this paper identifies barriers and facilitators to being tested for HCV through the program. Barriers include the patient's belief that she/he is not HCV infected, fear of needles, fear of obtaining a positive HCV test result, fear of disclosure of such a result, and fear of inappropriate or disrespectful treatment during the testing process. In addition, 38% of HCV sero-unaware or sero-negative patients completing the survey did not know that HCV testing was offered through their programs. Salient facilitators for those tested through their programs include support from staff in explaining the importance of testing and help in understanding and coping with test results.

Would offering rapid point-of-care testing or non-invasive methods improve uptake of HIV testing among high-risk genitourinary medicine clinic attendees? A patient perspective

While most genitourinary (GU) medicine clinics achieve a high uptake for testing HIV in new patients, they may still miss testing those at highest risk. Point-of-care testing (POCT) and salivary samples are acceptable and feasible but have not yet been shown to increase uptake among high-risk patients (HRP). This study aimed to describe reasons why HRP decline HIV testing and whether offering POCT along with standard testing would increase the uptake of testing HIV in two London GU medicine clinics. Anonymous self-administered questionnaires were offered to all new and rebooked patients. Eight hundred and ninety-nine questionnaires were analysed of which 598 were HRP. Uptake of HIV testing was 77.1 % among HRP and 65.8% among the rest. A total of 51.1 % of HRP who declined HIV testing said they would be more likely to accept a POCT and 32.8% a salivary test. Introduction of rapid POCT for HIV would increase patient's choice and may increase the likelihood of HRP accepting an HIV test.

Improving HIV screening and receipt of results by nurse-initiated streamlined counseling and rapid testing

BACKGROUND

HIV testing is cost-effective in unselected general medical populations, yet testing rates among those at risk remain low, even among those with regular primary care. HIV rapid testing is effective in many healthcare settings, but scant research has been done within primary care settings or within the US Department of Veteran's Affairs Healthcare System.

OBJECTIVES

We evaluated three methods proven effective in other diseases/settings: nurse standing orders for testing, streamlined counseling, and HIV rapid testing.

DESIGN

Randomized, controlled trial with three intervention models: model A (traditional counseling/testing); model B (nurse-initiated screening, traditional counseling/testing); model C (nurse-initiated screening, streamlined counseling/rapid testing).

PARTICIPANTS

Two hundred fifty-one patients with primary/urgent care appointments in two VA clinics in the same city (one large urban hospital, one freestanding outpatient clinic in a high HIV prevalence area).

MEASUREMENTS

Rates of HIV testing and receipt of results; sexual risk reduction; HIV knowledge improvement.

RESULTS

Testing rates were 40.2% (model A), 84.5% (model B), and 89.3% (model C; p = <.01). Test result receipt rates were 14.6% (model A), 31.0% (model B), 79.8% (model C; all p = <.01). Sexual risk reduction and knowledge improvement did not differ significantly between counseling methods.

CONCLUSIONS

Streamlined counseling with rapid testing significantly increased testing and receipt rates over current practice without changes in risk behavior or posttest knowledge. Increased testing and receipt of results could lead to earlier disease identification, increased treatment, and reduced morbidity/mortality. Policymakers should consider streamlined counseling/rapid testing when implementing routine HIV testing into primary/urgent care.

Telephone notification of HIV test results: impact in King County, Washington

OBJECTIVE

We evaluated if receiving HIV test results over the telephone was associated with a change in the number of persons who received results.

STUDY DESIGN

Data were collected from individuals testing for HIV from 1995 to 2002 at selected public clinics in King County, WA. Rates of receiving HIV test results were calculated for periods before and after telephone results were offered, for persons who were offered and accepted, offered but declined, and not offered telephone results.

RESULTS

For persons testing HIV positive, overall rates of receiving results before and after telephone results were offered increased from 85% to 94% (P = 0.07). After controlling for confounders, people in the group offered and accepting telephone results were 2.5 (95% CI 1.7-3.6) times more likely to get HIV results compared to persons in the group not offered telephone results.

CONCLUSIONS

Notifying persons of their HIV test results over the telephone may increase the numbers of people receiving results.

Impressões sobre o teste rápido para o HIV entre usuários de drogas injetáveis no Brasil

OBJETIVO: Descrever as impressões, experiências, conhecimentos, crenças e a receptividade de usuários de drogas injetáveis para participar das estratégias de testagem rápida para HIV. MÉTODOS: Estudo qualitativo exploratório foi conduzido entre usuários de drogas injetáveis, de dezembro de 2003 a fevereiro de 2004, em cinco cidades brasileiras, localizadas em quatro regiões do País. Um roteiro de entrevista semi-estruturado contendo questões fechadas e abertas foi usado para avaliar percepções desses usuários sobre procedimentos e formas alternativas de acesso e testagem. Foram realizadas 106 entrevistas, aproximadamente 26 por região. RESULTADOS: Características da população estudada, opiniões sobre o teste rápido e preferências por usar amostras de sangue ou saliva foram apresentadas junto com as vantagens e desvantagens associadas a cada opção. Os resultados mostraram a viabilidade do uso de testes rápidos entre usuários de drogas injetáveis e o interesse deles quanto à utilização destes métodos, especialmente se puderem ser equacionadas questões relacionadas à confidencialidade e confiabilidade dos testes. CONCLUSÕES: Os resultados indicam que os testes rápidos para HIV seriam bem recebidos por essa população. Esses testes podem ser considerados uma ferramenta valiosa, ao permitir que mais usuários de drogas injetáveis conheçam sua sorologia para o HIV e possam ser referidos para tratamento, como subsidiar a melhoria das estratégias de testagem entre usuários de drogas injetáveis.

Interpreting and implementing the 2006 CDC recommendations for HIV testing in health-care settings

On September 22, 2006, the Centers for Disease Control and Prevention (CDC) announced recommendations to expand the role of health-care providers in human immunodeficiency virus (HIV) testing. These clearlyjustified guidelines aim to remove traditional testing barriers, and thereby increase the rate of earlier diagnosis. This overarching strategy to increase testing in all health-care settings also includes less traditional sites such as emergency departments and correctional health-care facilities. The motivation for the guidelines is intuitive, as the need for augmented testing is well supported. Of those infected with HIV in the U.S., approximately one-quarter are unaware of their disease status. People who are unaware of their infection disproportionately account for new transmissions and are unable to benefit from treatment. The HIV incidence has not fallen below approximately 40,000 new diagnoses per year, of which approximately 40% are diagnosed late in the course of infection. Universal screening, even in populations with a disease prevalence of 0.1%, has been shown to be cost-effective. While the guidelines have been reviewed in depth, current interpretations do not adequately outline a structure for further debate or facilitate incremental or partial implementation of the recommendations. This must be remedied, as comprehensive implementation of the guidelines will be controversial or logistically impossible in many settings for the foreseeable future. Herein, we provide a clarified interpretation by outlining the core guideline elements individually and within the context of current barriers to implementation. We then discuss potential combinations of the core elements that would enable increased testing in settings where comprehensive guideline implementation is not possible.

User acceptability and feasibility of self-testing with HIV rapid tests

OBJECTIVE

Because HIV rapid tests are considered for self-testing, this study aims to determine the user acceptability and feasibility of self-testing.

METHODS

A cross-sectional study was performed on 350 systematically sampled participants across 2 Singapore HIV testing centers using the Abbott Determine HIV 1/2 blood sample rapid test (Abbott Laboratories, Abbott Park, IL). Participants were surveyed on knowledge of and attitudes toward rapid testing. To determine interrater agreement between self-testing and trained personnel testing, participants performed self-testing with visual instructions, followed by trained personnel testing. Ability to identify test outcomes was determined through interpretation of sample test results.

RESULTS

Eighty-nine percent of participants preferred testing in private, but most indicated that confidential counseling by trained counselors was necessary. Almost 90% found the kit easy to use and instructions easy to understand. Nevertheless, 85% failed to perform all steps correctly, especially blood sampling, and 56% had invalid results because of incorrect test performance. Interrater agreement between results from self-testing and trained personnel testing had a kappa value of 0.28. Twelve percent could not correctly determine results using sample tests, including 2% and 7% who read positive and negative samples, respectively, incorrectly.

CONCLUSIONS

A substantial proportion could not perform self-testing or identify outcomes. Self-testing with the Determine HIV 1/2 kit in Singapore should be deferred.

Barriers and facilitators to adolescent HIV testing

This study examined the barriers and facilitators of HIV counseling, testing, and referral service (HIV CTR) acceptance among 278 youth aged 12-24 years old. Participants completed a questionnaire before health education sessions with trained counselors. Information was collected on individual characteristics, HIV testing acceptance, risk behaviors, reasons for having never been tested, and what would make it easier to get tested for HIV. Ninety percent of the respondents were minority and 52% were female with an average age of 15 years. High-risk minority youth who had never received HIV CTR listed low perception of risk and never having been offered a test as reasons for not having been tested. Increased availability of oral and rapid testing methods as well as free testing services were listed as facilitating their acceptance of HIV testing. Older youth aged 18-24 years reported that HIV tests in which results can be received rapidly and confidentially would encourage them to obtain HIV testing services. Early identification approaches should be tailored to increase the access to and acceptance of HIV-testing services among the adolescent and young adult populations.

Perceptions of lifetime risk and actual risk for acquiring HIV among young men who have sex with men

Among young men who have sex with men (MSM) surveyed in six US cities, we evaluated the magnitude and correlates of perceived lifetime risk for acquiring HIV, and missed opportunities to increase risk perception by providers of health-care and HIV-testing services. Overall, approximately one quarter of young MSM perceived themselves at moderate/high risk for acquiring HIV. Adjusting for demographic, prior testing, and behavioral characteristics, moderate/high perceived risk had the strongest association with unrecognized HIV infection. However, half of the 267 young MSM with unrecognized infection perceived themselves at low lifetime risk for acquiring HIV, and many young MSM with low-risk perception reported considerable risk behaviors. Providers of health-care and HIV-testing services missed opportunities to assess risks and recommend testing for young MSM. To increase HIV testing, prevention providers should intensify efforts to assess, and to increase when needed, perceptions of lifetime risks for acquiring HIV among young MSM.

Predictors of delayed HIV diagnosis in a recently diagnosed cohort

Delayed diagnosis of HIV is associated with a worse prognosis despite highly active antiretroviral therapy. Many persons with HIV infection are diagnosed late in the disease process. We conducted a study of 119 persons recently diagnosed with HIV infection to determine the association of health literacy and other factors with delayed diagnosis. Patients were recruited from four publicly funded facilities in Houston, Texas. Health literacy was measured with the Test of Functional Health Literacy in Adults (TOFHLA). Delayed diagnosis was assessed by CD4 cell count at diagnosis. Sixty-five percent of patients had CD4 cell counts 350 cells/mm(3) or less. Twenty-eight percent had inadequate health literacy, but literacy was not associated with CD4 cell count. Thirty-eight percent were tested because they "felt sick." In multivariable analysis, female gender (p = 0.005), reason tested other than "felt sick" (p < 0.001), and marijuana use (p = 0.004) and other illicit drug use (p = 0.01) were predictors of having a higher CD4 cell count at diagnosis. These results confirm that late diagnosis of HIV is common among users of public health care facilities. Expanded routine testing for HIV infection is needed with attention directed to men and persons who may not recognize that they are at risk for contracting HIV infection.

Men Who Have Sex With Men: Perceptions About Sexual Risk, HIV and Sexually Transmitted Disease Testing, and Provider Communication

OBJECTIVES

This study was designed to gain a deeper understanding of the barriers and facilitators related to sexually transmitted diseases (STDs) and HIV screening among at-risk Boston men who have sex with men (MSM).

STUDY DESIGN

The cohort was recruited by a modified respondent-driven sampling technique and used one-on-one semistructured interviews and a quantitative survey to examine participants' understanding of STDs and HIV, perceptions of risk for disease, reasons for getting (or not getting) tested, and experiences with testing.

RESULTS

The study found that although most of the MSM knew the signs and symptoms of HIV, they were less familiar with STDs. MSM were most likely to be screened if they had symptoms or were told by a partner of a recent exposure. However, many barriers to STD/HIV screening among MSM still exist, including lack of awareness of symptoms, misperceptions about the ways STDs are transmitted, and perceived impediments from the healthcare system, including misgivings about provider sensitivity.

CONCLUSIONS

To decrease current increases in HIV/STDs among MSM, new strategies that include community and provider education are needed.

Risk reduction counselling for prevention of sexually transmitted infections: how it works and how to make it work

Prevention research in the past decade has proved the efficacy of risk reduction counselling in reducing the risks for sexually transmitted infections (STIs). The question currently facing STI service providers is therefore not so much whether counselling should be part of the standard of STI care but rather how this intervention can be implemented given the logistical and resource constraints of a busy practice setting. After a brief introduction of the history and an overview of the models for risk reduction counselling and their theoretical and scientific underpinnings, the focus of this paper will be on the extent to which individual prevention models have been adopted in different clinical settings, the impediments to implementation and suggestions for improvement.

Rapid HIV antibody testing in the New York State Anonymous HIV Counseling and Testing Program: experience from the field

OBJECTIVES

To assess rapid and conventional HIV test use, client satisfaction, and counselors' comfort.

METHODS

At 61 HIV test sites in New York State, we compared HIV test use during the first 6 months of rapid testing in 2003 with the same time period in 2002. We administered surveys to clients at each site during the first 30 days of rapid testing and to counselors before and after training and after 12 weeks of using rapid tests in the field.

RESULTS

Almost all (1249 [96.5%] of 1294) clients surveyed selected rapid over conventional HIV testing. During the evaluation period, 6187 HIV tests were reported, 1667 (36.9%) more than during the same period in 2002. All 5771 (100%) of 5771 clients received their rapid HIV test results compared with 333 (85.8%) of 388 clients (P < 0.0001) who had elected conventional testing. After performing rapid testing for 12 weeks, 32 (80%) of 40 trained counselors reported feeling "very comfortable" delivering reactive rapid test results compared with 14 (35%) of 40 trained counselors (P < 0.001) before training.

CONCLUSIONS

Rapid testing presents a key opportunity to increase the number of people undergoing HIV testing and the proportion receiving their test results.

Human immunodeficiency virus and hepatitis C virus testing services at syringe exchange programs: availability and outcomes

We described the availability and outcomes of human immunodeficiency virus (HIV) and hepatitis C virus (HCV) testing services at syringe exchange programs throughout California, using interviews with 24 syringe exchange program directors and 560 syringe exchange clients. Both HIV and HCV testing services were available in 62% of programs, 21% had HIV testing only, and 17% had neither. Programs administered by health care/social service providers were more likely than independent syringe exchange programs to have HIV and HCV testing services available. Among clients of programs with testing available, clients of illegal programs were significantly less likely than clients of legal programs to have used syringe exchange HIV and HCV testing services. The availability of HIV and HCV testing services at syringe exchange programs varies, and the use of existing testing services by clients is not universal. Efforts to increase both the availability of HIV and HCV testing services at syringe exchange programs and the use of existing testing services are needed.

HIV/AIDS in the Middle East: a guide to a proactive response

After 24 years of being declared an epidemic, the human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) has found its way to the remote parts of the Middle East. There are no fastidious HIV/AIDS epidemiological data available specific for the Middle East and insufficient surveys have been conducted in a larger area including the Middle East and North Africa. Currently the total number of people living with HIV in the Middle East and North Africa is 540,000. About 92,000 individuals were newly infected in 2004 and 28,000 people have died of AIDS during the same time period.2 With increasing spread of sexually transmitted infections (STIs), injection drug users (IDUs), numbers of unemployed youth, a conservative culture and low awareness of HIV the region is especially vulnerable to a large-scale epidemic. In this age of globalization the rapid spread of HIV along with highly virulent and multi-drug-resistant HIV strains that progress rapidly to AIDS, the more difficult and expensive prevention efforts and treatment regimes become. Complicating the issue there are many unresolved socio-economic conflicts in the Middle East. Valid and reliable HIV/AIDS epidemiological data, to facilitate policy formulation and to effect urgent prevention intervention is inadequate. This article identifies numerous gaps and shortfalls in the existing programs, elucidates the reasons behind the lack of information, and provides suggestions for taking actions.

Injecting drug users who are (un)aware of their HIV serostatus: findings from the multi-center study AjUDE-Brasil II

This study aimed to characterize the profiles of injecting drug users (IDUs) who were unaware of their HIV serostatus, given the importance of this information for prevention strategies, especially in this vulnerable population, key to the HIV/AIDS dynamic. As part of a cross-sectional multi-city survey, IDUs were interviewed and HIV-tested by the ELISA technique. IDUs were categorized according to knowledge of their own HIV status as either aware or unaware. Means, averages, and proportions were compared between the groups using bi- and multivariate analyses. Of 857 IDUs interviewed, 34.2% were unaware of their HIV serostatus. Those who were unaware were more likely: to have been recruited at sites where the HIV prevalence rate was considered medium (> 10 to 50%; odds ratio = 8.0) or high (> 50%; 4.0); to be illiterate (OR = 4.54); to have no prior HIV test (OR = 2.22); to be male (OR = 1.81); and to have been enrolled more recently in syringe-exchange programs (OR = 1.69). HIV prevention programs should target both individuals at risk and HIV-positive individuals. Programs to expand access to HIV testing are pivotal and should be tailored to specific contexts and populations.

Recent HIV Testing Among Young Men Who Have Sex With Men: Correlates, Contexts, and HIV Seroconversion

OBJECTIVES

We evaluated the correlates and contexts of HIV testing within the past year, subsequent risk reduction, and HIV seroconversion among young men who have sex with men (MSM).

METHODS

Young men aged 23 to 29 years were approached, interviewed, counseled, and tested for HIV at 181 randomly sampled MSM-identified venues in six U.S. cities from 1998 through 2000. Analyses were restricted to 2,797 MSM who reported never testing HIV-positive.

RESULTS

Of the 2,797 MSM, 1,281 (46%) either never previously tested or had not tested in the past year (never/remote testers); 1,516 (54%) had tested in the past year (recent testers); and 271 (10%) tested HIV-positive as part of the study. Of 1,885 recent sex partners reported by HIV-infected participants, 68% were partners of never/remote testers. Of recent testers, 50% tested anonymously, 51% tested because of specific risks, 59% were counseled, 47% reported reducing their risks after testing, and 8% tested HIV-positive (percent HIV-infected by race: blacks, 24%; Hispanics, 6%; whites, 4%; Asians, 1%).

CONCLUSION

Nearly half of young MSM participants had not tested in the past year and HIV-infected never/remote testers accounted for approximately two thirds of recent partners potentially exposed to HIV. Of those who had tested recently, many MSM, especially those who are black, had already acquired HIV. To reduce HIV transmission and facilitate early diagnosis and entry into care, increased HIV testing among young at-risk MSM in the United States, especially those who are black, is needed.

Refusing HIV testing in an urgent care setting: results from the "Think HIV" program

Efforts to increase HIV case identification through routine, voluntary HIV testing are hindered by high refusal rates. Our objective was to identify patients most likely to refuse routine HIV testing. We developed a new HIV testing program at four Massachusetts urgent care centers. Patients were asked if they were interested in routine HIV testing. We performed analyses to assess differences in characteristics between those who refused testing and those who accepted it. Data were available for 9129/10,354 (88%) patients offered routine HIV testing from January to December 2002. Of these 9129 patients, 67% refused testing. In the crude analysis, HIV test refusal was associated with female gender, white race, older age, and higher educational level. In multivariate analysis, non-English-speaking patients who were Hispanic, Haitian, and other race were more likely to refuse testing than their English-speaking counterparts. Among all patients, "not at risk" and "already tested" were the most common reasons for test refusal. Two thirds of patients refused routine HIV testing when it was offered in a statewide urgent care-based program. If routine HIV testing programs are to be successful, strategies must be developed to increase HIV test acceptance among patients most likely to refrain from testing.

HIV testing trends and correlates among young Asian and Pacific Islander men who have sex with men in two U.S. cities

We sought to determine the prevalence, trends, and correlates of recent HIV testing (within the past year) among young Asian and Pacific Islander men who have sex with men (API MSM) in two U.S. cities. We conducted serial, cross-sectional, interviewer-administered surveys of 908 API MSM aged 15-25 years, sampled from randomly selected MSM-identified venues annually from 1999 to 2002. The prevalence of recent testing increased from 63% to 71% between the first and fourth year. Recent testing was most significantly associated with ethnicity and with knowledge of testing sites to which respondents felt comfortable going. Other correlates of recent testing included gay identity, comfort with sexual and API identity, having a main partner, social support, and recent unprotected anal intercourse. API MSM who had ever traded sex for material goods or shelter were as likely to have tested recently. HIV prevention campaigns should increase the awareness and availability of culturally appropriate testing sites and urge more frequent testing by young API MSM.

Preclinical and clinical performance of the Efoora test, a rapid test for detection of human immunodeficiency virus-specific antibodies

Barriers to effective diagnostic testing for human immunodeficiency virus type 1 (HIV-1) infection can be reduced with simple, reliable, and rapid detection methods. Our objective was to determine the accuracy, sensitivity, and specificity of a new rapid, lateral-flow immunochromatographic HIV-1 antibody detection device. Preclinical studies were performed using seroconversion, cross-reaction, and interference panels, archived clinical specimens, and fresh whole blood. In a multicenter, prospective clinical trial, a four-sample matrix of capillary (fingerstick) whole-blood specimens and venous whole blood, plasma, and serum was tested for HIV-1 antibodies with the Efoora HIV rapid test (Efoora Inc., Buffalo Grove, IL) and compared with an enzyme immunoassay (EIA) (Abbott Laboratories) licensed by the Food and Drug Administration. Western blot and nucleic acid test supplemental assays were employed to adjudicate discordant samples. Preclinical testing of seroconversion panels showed that antibodies were often detected earlier by the rapid test than by a reference EIA. No significant interference or cross-reactions were observed. Testing of 4,984 archived specimens yielded a sensitivity of 99.2% and a specificity of 99.7%. A prospective multicenter clinical study with 2,954 adult volunteers demonstrated sensitivity and specificity for the Efoora HIV rapid test of 99.8% (95% confidence interval [CI], 99.3 and 99.98%) and 99.0% (95% CI, 98.5 and 99.4%), respectively. Reactive rapid HIV-1 antibody detection was confirmed in 99.6% of those with a known HIV infection (n = 939), 5.2% of those in the high-risk group (n = 1,003), and 0.1% of those in the low-risk group (n = 1,012). For 21 (0.71%) patients, there was discordance between the results of the rapid test and the confirmatory EIA/Western blot tests. We conclude that the Efoora HIV rapid test is a simple, rapid assay for detection of HIV-1 antibodies, with high sensitivity and specificity compared to a standardized HIV-1 EIA.

HIV vaccine acceptability among women at risk: perceived barriers and facilitators to future HIV vaccine uptake

The purpose of this study is to explore perceived barriers and facilitators to the uptake of future U.S. Food and Drug Administration-approved HIV vaccines among women at elevated risk for HIV. We conducted four client focus groups (N = 41) and one focus group of women's health care professionals (N =9). Participants were recruited from diverse community agencies and health care clinics in Los Angeles using purposive, venue-based sampling. Data were analyzed using narrative thematic analysis and Ethnograph qualitative software. Barriers to HIV vaccine uptake included fear of vaccine-induced HIV infection, reproductive side effects, injection concerns, gendered roles and power dynamics, HIV stigma, discrimination, affordability, and mistrust. The provision of affordable and accessible HIV vaccines, ideally through routine care, along with culturally tailored, gender-specific HIV vaccine intervention and policy, can ensure the full potential of HIV vaccines to empower women to protect themselves against HIV infection.

Unrecognized HIV infection, risk behaviors, and perceptions of risk among young men who have sex with men: opportunities for advancing HIV prevention in the third decade of HIV/AIDS

This study evaluated the magnitude and distribution of unrecognized HIV infection among young men who have sex with men (MSM) and of those with unrecognized infection, the prevalence and correlates of unprotected anal intercourse (UAI), perceived low risk for infection, and delayed HIV testing. MSM aged 15-29 years were approached, interviewed, counseled, and tested for HIV at 263 randomly sampled venues in 6 US cities from 1994-2000. Of 5649 MSM participants, 573 (10%) tested positive for HIV. Of these, 91% of black, 69% of Hispanic, and 60% of white MSM (77% overall) were unaware of their infection. The 439 MSM with unrecognized infection reported a total of 2253 male sex partners in the previous 6 months; 51% had UAI; 59% perceived that they were at low risk for being infected; and 55% had not tested in the previous year. The HIV epidemic among MSM in the United States continues unabated, in part, because many young HIV-infected MSM are unaware of their infection and unknowingly expose their partners to HIV. To advance HIV prevention in the third decade of HIV/AIDS, prevention programs must reduce unrecognized infection among young MSM by increasing the demand for and availability of HIV testing services.