Linda Beer

Excess Burden of Depression among HIV-Infected Persons Receiving Medical Care in the United States: Data from the Medical Monitoring Project and the Behavioral Risk Factor Surveillance System

Background With increased life expectancy for HIV-infected persons, there is concern regarding comorbid depression because of its common occurrence and association with behaviors that may facilitate HIV transmission. Our objectives were to estimate the prevalence of current depression among HIV-infected persons receiving care and assess the burden of major depression, relative to that in the general population. Methods and Findings We used data from the Medical Monitoring Project (MMP) and the Behavioral Risk Factors Surveillance System (BRFSS). The eight-item Patient Health Questionnaire was used to identify depression. To assess the burden of major depression among HIV-infected persons receiving care, we compared the prevalence of current major depression between the MMP and BRFSS populations using stratified analyses that simultaneously controlled for gender and, in turn, each of the potentially confounding demographic factors of age, race/ethnicity, education, and income. Each unadjusted comparison was summarized as a prevalence ratio (PR), and each of the adjusted comparisons was summarized as a standardized prevalence ratio (SPR). Among HIV-infected persons receiving care, the prevalence of a current episode of major depression and other depression, respectively, was 12.4% (95% CI: 11.2, 13.7) and 13.2% (95% CI: 12.0%, 14.4%). Overall, the PR comparing the prevalence of current major depression between HIV-infected persons receiving care and the general population was 3.1. When controlling for gender and each of the factors age, race/ethnicity, and education, the SPR (3.3, 3.0, and 2.9, respectively) was similar to the PR. However, when controlling for gender and annual household income, the SPR decreased to 1.5. Conclusions Depression remains a common comorbidity among HIV-infected persons. The overall excess burden among HIV-infected persons receiving care is about three-times that among the general population and is associated with differences in annual household income between the two populations. Relevant efforts are needed to reduce this burden.

Health-Related Beliefs and Decisions about Accessing HIV Medical Care among HIV-Infected Persons Who Are Not Receiving Care

In the United States, the publically supported national HIV medical care system is designed to provide HIV medical care to those who would otherwise not receive such care. Nevertheless, many HIV-infected persons are not receiving medical care. Limited information is available from HIV-infected persons not currently in care about the reasons they are not receiving care. From November 2006 to February 2007, we conducted five focus groups at community-based organizations and health departments in five U.S. cities to elicit qualitative information about barriers to entering HIV care. The 37 participants were mostly male (n = 29), over the age of 30 (n = 34), and all but one had not received HIV medical care in the previous 6 months. The focus group discussions revealed health belief-related barriers that have often been overlooked by studies of access to care. Three key themes emerged: avoidance and disbelief of HIV serostatus, conceptions of illness and appropriate health care, and negative experiences with, and distrust of, health care. Our findings point to the potentially important influence of these health-related beliefs on individual decisions about whether to access HIV medical care. We also discuss the implications of these beliefs for provider-patient communication, and suggest that providers frame their communications with patients such that they are attentive to the issues identified by our respondents, to better engage patients as partners in the treatment process.

Disparities in HIV transmission risk among HIV-infected black and white men who have sex with men, United States, 2009

Objective:To better understand why HIV incidence is substantially higher among black than white men who have sex with men (MSM), we present the first nationally representative estimates of factors that contribute to transmission – sexual behavior, antiretroviral therapy (ART) use, and viral suppression – among HIV-infected black and white MSM in the United States. Design:The Medical Monitoring Project (MMP) is a complex sample survey of HIV-infected adults receiving medical care in the United States. Methods:We used weighted interview and medical record data collected during June 2009 to May 2010 to estimate the prevalence of sexual behaviors, ART use, and viral suppression among sexually active HIV-infected black and white MSM. We used &khgr;2 tests to assess significant differences between races and logistic regression models to identify factors that mediated the racial differences. Results:Sexual risk behaviors among black and white MSM were similar. Black MSM were significantly less likely than white MSM to take ART (80 vs. 91%) and be durably virally suppressed (48 vs. 69%). Accounting for mediators (e.g. age, insurance, poverty, education, time since diagnosis, and disease stage) reduced, but did not eliminate, disparities in ART use and rendered differences in viral suppression among those on ART insignificant. Conclusion:Lower levels of ART use and viral suppression among HIV-infected black MSM may increase the likelihood of HIV transmission. Addressing the patient-level factors and structural inequalities that contribute to lower levels of ART use and viral suppression among this group will improve clinical outcomes and might reduce racial disparities in HIV incidence.

Use of and Adherence to Antiretroviral Therapy in a Large U.S. Sample of HIV-infected Adults in Care, 2007-2008

Background: Antiretroviral therapy (ART) is the cornerstone of HIV clinical care and is increasingly recognized as a key component of HIV prevention. However, the benefits of ART can be realized only if HIV-infected persons maintain high levels of adherence. Methods: We present interview data (collected from June 2007 through September 2008) from a national HIV surveillance system in the United States—the Medical Monitoring Project (MMP)—to describe persons taking ART. We used multivariate logistic regression to assess behavioral, sociodemographic, and medication regimen factors associated with three measures that capture different dimensions of nonadherence to ART: dose, schedule, and instruction. Results: The use of ART among HIV-infected adults in care was high (85%), but adherence to ART was suboptimal and varied across the three measures of nonadherence. Of MMP participants currently taking ART, the following reported nonadherence during the past 48 hours: 13% to dose, 27% to schedule, and 30% to instruction. The determinants of the three measures also varied, although younger age and binge drinking were associated with all aspects of nonadherence. Conclusion: Our results support the measurement of multiple dimensions of medication-taking behavior in order to avoid overestimating adherence to ART.

Service Delivery and Patient Outcomes in Ryan White HIV/AIDS Program–Funded and –Nonfunded Health Care Facilities in the United States

IMPORTANCE Outpatient human immunodeficiency virus (HIV) health care facilities receive funding from the Ryan White HIV/AIDS Program (RWHAP) to provide medical care and essential support services that help patients remain in care and adhere to treatment. Increased access to Medicaid and private insurance for HIV-infected persons may provide coverage for medical care but not all needed support services and may not supplant the need for RWHAP funding. OBJECTIVE To examine differences between RWHAP-funded and non-RWHAP-funded facilities and in patient outcomes between the 2 systems. DESIGN, SETTING, AND PARTICIPANTS The study was conducted from June 1, 2009, to May 31, 2012, using data from the 2009 and 2011 cycles of the Medical Monitoring Project, a national probability sample of 8038 HIV-infected adults receiving medical care at 989 outpatient health care facilities providing HIV medical care. MAIN OUTCOMES AND MEASURES Data were used to compare patient characteristics, service needs, and access to services at RWHAP-funded vs non-RWHAP-funded facilities. Differences in prescribed antiretroviral treatment and viral suppression were assessed. Data analysis was performed between February 2012 and June 2015. RESULTS Overall, 34.4% of facilities received RWHAP funding and 72.8% of patients received care at RWHAP-funded facilities. With results reported as percentage (95% CI), patients attending RWHAP-funded facilities were more likely to be aged 18 to 29 years (8.5% [7.4%-9.5%] vs 5.0% [3.9%-6.2%]), female (29.2% [27.2%-31.2%] vs 20.1% [17.0%-23.1%]), black (47.5% [41.5%-53.5%] vs 25.8% [20.6%-31.0%]) or Hispanic (22.5% [16.4%-28.6%] vs 12.9% [10.6%-15.2%]), have less than a high school education (26.1% [24.0%-28.3%] vs 10.9% [8.7%-13.1%]), income at or below the poverty level (53.6% [50.3%-56.9%] vs 23.9% [19.7%-28.0%]), and lack health care coverage (25.0% [21.9%-28.1%] vs 6.1% [4.1%-8.0%]). The RWHAP-funded facilities were more likely to provide case management (76.1% [69.9%-82.2%] vs 15.4% [10.4%-20.4%]) as well as mental health (64.0% [57.0%-71.0%] vs 18.0% [14.0%-21.9%]), substance abuse (33.6% [27.0%-40.2%] vs 12.0% [8.0%-16.0%]), and other support services; patients attending RWHAP-funded facilities were more likely to receive these services. After adjusting for patient characteristics, the percentage prescribed ART antiretroviral therapy, reported as adjusted prevalence ratio (95% CI), was similar between RWHAP-funded and non-RWHAP-funded facilities (1.01 [0.99-1.03]), but among poor patients, those attending RWHAP-funded facilities were more likely to be virally suppressed (1.09 [1.02-1.16]). CONCLUSIONS AND RELEVANCE A total of 72.8% of HIV-positive patients received care at RWHAP-funded facilities. Many had multiple social determinants of poor health and used services at RWHAP-funded facilities associated with improved outcomes. Without facilities supported by the RWHAP, these patients may have had reduced access to services elsewhere. Poor patients were more likely to achieve viral suppression if they received care at a RWHAP-funded facility.

Adherence to Antiretroviral Therapy Among HIV-Infected Adults in the United States

National estimates of antiretroviral therapy (ART) adherence and adherence support services utilization are needed to inform efforts to improve the health of HIV-infected persons in the United States. In a nationally representative sample of HIV-infected adults receiving medical care, 86% self-reported taking all ART doses in the past 72 hours. Overall, 20% reported using adherence support services and 2% reported an unmet need for services. If all nonadherent persons not receiving adherence support and all persons with a self-perceived unmet need for adherence support accessed services, resources to support ∼42,673 additional persons would be needed. Factors associated with lower adherence included younger age, female gender, depression, stimulant use, binge alcohol use, greater than once-daily dosing, longer time since HIV diagnosis, and patient beliefs. Predictors of adherence are multifactorial so multiple targeted strategies to improve adherence are warranted. Providing adherence support services to all those in need may require additional resources.

Understanding Cross-Sectional Racial, Ethnic, and Gender Disparities in Antiretroviral Use and Viral Suppression Among HIV Patients in the United States

AbstractTo examine racial/ethnic and gender disparities in antiretroviral (ART) use and viral suppression among HIV-infected persons in care and identify factors that might account for observed disparities.The Medical Monitoring Project (MMP) is a complex sample survey of HIV-infected adults receiving medical care in the United States.We used weighted interview and medical record data collected 06/2009 to 05/2012 to estimate the prevalence of ART use and viral suppression among gender-stratified racial/ethnic groups. We used &khgr;2 tests to identify significant differences in outcomes between white men versus other groups, and logistic regression models to identify the most parsimonious set of factors that could account for each observed difference.We found no significant disparity in ART use between white and Hispanic men, and no disparities between white men and white and Hispanic women after adjustment for disease stage, age, and poverty. Disparities in ART use between white men and black persons persisted after adjusting for other factors, but the observed differences were relatively small. Differences in ART use and adherence, demographic characteristics, and social determinants of health such as poverty, education, and insurance accounted for the observed disparities in viral suppression between white men and all groups except black men. In our model, accounting for these factors reduced the prevalence difference in viral suppression between white and black men by almost half.We found that factors associated with disparities differed among men and women of the same race/ethnicity, lending support to the assertion that gender affects access to care and health status among HIV-infected patients. In addition to supporting efforts to increase ART use and adherence among persons living with HIV, our analysis provides evidence for the importance of social determinants of health in understanding racial/ethnic and gender differences in ART use and viral suppression.

Sexual risk behaviour and viral suppression among HIV-infected adults receiving medical care in the United States

Objective:To describe the prevalence and association of sexual risk behaviours and viral suppression among HIV-infected adults in the United States. Design:Cross-sectional analysis of weighted data from a probability sample of HIV-infected adults receiving outpatient medical care. The facility and patient response rates were 76 and 51%, respectively. Methods:We analysed 2009 interview and medical record data. Sexual behaviours were self-reported in the past 12 months. Viral suppression was defined as all viral load measurements in the medical record during the past 12 months less than 200 copies/ml. Results:An estimated 98 022 (24%) HIV-infected adults engaged in unprotected vaginal or anal sex; 50 953 (12%) engaged in unprotected vaginal or anal sex with at least one partner of negative or unknown HIV status; 23 933 (6%) did so while not virally suppressed. Persons who were virally suppressed were less likely than persons who were not suppressed to engage in vaginal or anal sex [prevalence ratio, 0.88; 95% confidence interval (CI), 0.82–0.93]; unprotected vaginal or anal sex (prevalence ratio, 0.85; 95% CI, 0.73–0.98); and unprotected vaginal or anal sex with a partner of negative or unknown HIV status (prevalence ratio, 0.79; 95% CI, 0.64–0.99). Conclusion:The majority of HIV-infected adults receiving medical care in the U.S. did not engage in sexual risk behaviours that have the potential to transmit HIV, and of the 12% who did, approximately half were not virally suppressed. Persons who were virally suppressed were less likely than persons who were not suppressed to engage in sexual risk behaviours.

Using HIV Surveillance Data to Monitor Missed Opportunities for Linkage and Engagement in HIV Medical Care

Monitoring delayed entry to HIV medical care is needed because it signifies that opportunities to prevent HIV transmission and mitigate disease progression have been missed. A central question for population-level monitoring is whether to consider a person linked to care after receipt of one CD4 or VL test. Using HIV surveillance data, we explored two definitions for estimating the number of HIV-diagnosed persons not linked to HIV medical care. We used receipt of at least one CD4 or VL test (definition 1) and two or more CD4 or VL tests (definition 2) to define linkage to care within 12 months and within 42 months of HIV diagnosis. In five jurisdictions, persons diagnosed from 12/2006-12/2008 who had not died or moved away and who had zero, or less than two reported CD4 or VL tests by 7/31/2010 were considered not linked to care under definitions 1 and 2, respectively. Among 13,600 persons followed up for 19-42 months; 1,732 (13%) had no reported CD4 or VL tests; 2,332 persons (17%) had only one CD4 or VL test and 9,536 persons (70%) had two or more CD4 or VL tests. To summarize, after more than 19 months, 30% of persons diagnosed with HIV had less than two CD4 or VL tests; more than half of them were considered to have entered care if entering care is defined as having one CD4 or VL test. Defining linkage to care as a single CD4 or VL may overestimate entry into care, particularly for certain subgroups.

Medication-Related Barriers to Entering HIV Care

Early entry to HIV care and receipt of antiretroviral therapy improve the health of the individual and decrease the risk of transmission in the community. To increase the limited information on prospective decisions to enter care and how these decisions relate to beliefs about HIV medications, we analyzed interview data from the Never in Care Project, a multisite project conducted in Indiana, New Jersey, New York City, Philadelphia, and Washington State. From March 2008 through August 2010, we completed structured interviews with 134 persons with no evidence of HIV care entry, 48 of whom also completed qualitative interviews. Many respondents believed that HIV care entails the passive receipt of medications that may be harmful or unnecessary, resulting in reluctance to enter care. Respondents voiced concerns about prescription practices and preserving future treatment options, mistrust of medications and medical care providers, and ambivalence about the life-preserving properties of medications in light of an assumed negative impact on quality of life. Our results support the provision of information on other benefits of care (beyond medications), elicitation of concerns about medications, and assessment of psychosocial barriers to entering care. These tasks should begin at the time a positive test result is delivered and continue throughout the linkage-to-care process; for persons unwilling to enter care immediately, support should be provided in nonmedical settings.