The prospective effect of access to medical care on health-related quality-of-life outcomes in patients with symptomatic HIV disease

Clinical and Sociobehavioral Prediction Model of 30-Day Hospital Readmissions Among People With HIV and Substance Use Disorder: Beyond Electronic Health Record Data

BACKGROUND

Under the Affordable Care Act, hospitals receive reduced reimbursements for excessive 30-day readmissions. However, the Centers for Medicare and Medicaid Services does not consider social and behavioral variables in expected readmission rate calculations, which may unfairly penalize systems caring for socially disadvantaged patients, including patients with HIV.

SETTING

Randomized controlled trial of patient navigation with or without financial incentives in HIV-positive substance users recruited from the inpatient setting at 11 US hospitals.

METHODS

External validation of an existing 30-day readmission prediction model, using variables available in the electronic health record (EHR-only model), in a new multicenter cohort of HIV-positive substance users was assessed by C-statistic and Hosmer-Lemeshow testing. A second model evaluated sociobehavioral factors in improving the prediction model (EHR-plus model) using multivariable regression and C-statistic with cross-validation.

RESULTS

The mean age of the cohort was 44.1 years, and participants were predominantly males (67.4%), non-white (88.0%), and poor (62.8%, <$20,000/year). Overall, 17.5% individuals had a hospital readmission within 30 days of initial hospital discharge. The EHR-only model resulted in a C-statistic of 0.65 (95% confidence interval: 0.60 to 0.70). Inclusion of additional sociobehavioral variables, food insecurity and readiness for substance use treatment, in the EHR-plus model resulted in a C-statistic of 0.74 (0.71 after cross-validation, 95% confidence interval: 0.64 to 0.77).

CONCLUSIONS

Incorporation of detailed social and behavioral variables substantially improved the performance of a 30-day readmission prediction model for hospitalized HIV-positive substance users. Our findings highlight the importance of social determinants in readmission risk and the need to ask about, adjust for, and address them.

Barriers to Care Among Transgender and Gender Nonconforming Adults

Policy Points: Transgender and gender nonconforming (GNC) adults may experience barriers to care for a variety of reasons, including discrimination and lack of awareness by providers in health care settings. In our analysis of a large, population-based sample, we found transgender and GNC adults were more likely to be uninsured and have unmet health care needs, and were less likely to have routine care, compared to cisgender (nontransgender) women. Our findings varied by gender identity. More research is needed on transgender and GNC populations, including on how public policy and provider awareness affects health care access and health outcomes differentially by gender identity.

CONTEXT

Very little population-based research has examined health and access to care among transgender populations. This study compared barriers to care between cisgender, transgender, and gender nonconforming (GNC) adults using data from a large, multistate sample.

METHODS

We used data from the 2014-2015 Behavioral Risk Factor Surveillance System to estimate the prevalence of having no health insurance, unmet medical care needs due to cost, no routine checkup, and no usual source of care for cisgender women (n = 183,370), cisgender men (n = 131,080), transgender women (n = 724), transgender men (n = 449), and GNC adults (n = 270). Logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals (CI) for each barrier to care while adjusting for sociodemographic characteristics.

FINDINGS

Transgender and GNC adults were more likely to be nonwhite, sexual minority, and socioeconomically disadvantaged compared to cisgender adults. After controlling for sociodemographic characteristics, transgender women were more likely to have no health insurance (OR = 1.60; 95% CI = 1.07-2.40) compared to cisgender women; transgender men were more likely to have no health insurance (OR = 2.02; 95% CI = 1.25-3.25) and no usual source of care (OR = 1.84; 95% CI = 1.18-2.88); and GNC adults were more likely to have unmet medical care needs due to cost (OR = 1.93; 95% CI = 1.02-3.67) and no routine checkup in the prior year (OR = 2.41; 95% CI = 1.41-4.12).

CONCLUSIONS

Transgender and GNC adults face barriers to health care that may be due to a variety of reasons, including discrimination in health care, health insurance policies, employment, and public policy or lack of awareness among health care providers on transgender-related health issues.

Differential relationships between social adversity and depressive symptoms by HIV status and racial/ethnic identity

OBJECTIVE

Historically marginalized groups are likely to be exposed to social adversity, which predicts important mental health outcomes (e.g., depression). Despite the well-established relationship between adversity and poor health, few studies have examined how adversity differentially predicts mental health among people living with multiple, co-occurring marginalized identities or statuses. The current study fills this gap by examining whether relationships between social adversity and depressive symptoms differed between those living with or without a stigmatized disease (i.e., HIV) and/or marginalized racial/ethnic identity (i.e., African American).

METHOD

A community sample of men and women (N = 149) completed questionnaires assessing demographics and depressive symptoms. Additionally, a composite index of social adversity was derived from measures of perceived discrimination, socioeconomic status, financial restriction to receiving medical care, and perceived neighborhood characteristics. Multiple regression was used to test whether relationships between adversity and depressive symptoms differed as a function of HIV status and racial/ethnic identity.

RESULTS

A significant 3-way interaction between social adversity, HIV status, and racial/ethnic identity indicated that there was a direct relationship between adversity and depressive symptoms for HIV-positive (HIV+) African Americans but not for HIV-negative (HIV-) African Americans, HIV+ Caucasians, or HIV- Caucasians. Further, HIV+ African Americans evidenced a significantly greater relationship between adversity and depressive symptoms compared with HIV- African Americans, but not compared with other groups.

CONCLUSIONS

The findings suggest that HIV+ African Americans may be at risk for higher depressive symptoms amid adversity, highlighting the importance of evaluating intersectional identities/statuses in the context of mental health. (PsycINFO Database Record

Living with addiction: the perspectives of drug using and non-using individuals about sharing space in a hospital setting

Hospitals seem to be places where harm reduction approaches could have great benefit but few have responded to the needs of people who use drugs. Drawing on recent theoretical contributions to harm reduction from health geography, we examine how the implementation of harm reduction is shaped by space and contested understandings of place and health. We examine how drug use and harm reduction approaches pose challenges and offer opportunities in hospital-based care using interview data from people living with HIV and who were or had recently been admitted to a hospital with an innovative harm reduction policy. Our data reveal the contested spatial arrangements (and the related practices and corporeal relations) that occur due to the discordance between harm reduction and hospital regulatory policy. Rather than de-stigmatising drug use at Casey House Hospital, the adoption of the harm reduction policy sparked inter-client conflict, reproduced dominant discourses about health and drug users, and highlights the challenges of sharing space when drug use is involved. The hospital setting produces particular ways of being for people who use and those who do not use drugs and the demarcation of space in a drug using context. Moving forward, harm reduction practice and research needs to consider more than just interactions between drug users and healthcare providers, or the role of administrative policies; it needs to position ethics at the forefront of understanding the collisions between people, drug use, place, and space. We raise questions about the relationship between subjectivity and spatial arrangements in mediating the success of harm reduction.

Interventions to promote linkage to and utilization of HIV medical care among HIV-diagnosed persons: a qualitative systematic review, 1996-2011

This qualitative systematic review examined interventions that promote linkage to or utilization of HIV care among HIV-diagnosed persons in the United States. We conducted automated searches of electronic databases (i.e., MEDLINE, EMBASE, PsycINFO, CINAHL) and manual searches of journals, reference lists, and listservs. Fourteen studies from 19 published reports between 1996 and 2011 met our inclusion criteria. We developed a three-tier approach, based on strength of study design, to evaluate 6 findings on linkage to care and 18 findings on HIV care utilization. Our review identified similar strategies for the two outcomes, including active coordinator's role in helping with linking to or utilizing HIV care; offering information and education about HIV care; providing motivational or strengths-based counseling; accompanying clients to medical appointments and helping with appointment coordination. The interventions focused almost exclusively on individual-level factors. More research is recommended to examine interventions that address system and structural barriers.

Hard-to-reach? Using health access status as a way to more effectively target segments of the Latino audience

Health issues disproportionately affect Latinos, but variations within this ethnic group may mean that some Latinos are harder to reach with health messages than others. This paper introduces a methodology grounded in communication infrastructure theory to better target 'hard-to-reach' audiences. A random digit dialing telephone survey of 739 Latinos living in two Los Angeles communities was conducted. The relationships between health access difficulties and connections to an integrated storytelling network as well as individual health communication source connections were explored. Findings suggest that Latinos who are connected to an integrated storytelling network report marginally greater ease finding healthcare, despite not being any more likely to have insurance or a regular place for healthcare. Latinos who have health access problems tended to rely more upon Spanish-language television for health information. In addition, those without healthcare access problems are more likely to indicate that they use health professionals, the Internet, mainstream TV and printed materials like health pamphlets for health information. The theoretical and methodological contributions of this work, its major findings, implications, limitations and policy guidelines are discussed.

Additive effects of numbness and muscle aches on fatigue occurrence in individuals with HIV/AIDS who are taking antiretroviral therapy

CONTEXT

Muscle aches, numbness in the feet/toes (neuropathy), and fatigue are often reported concurrently and are among the symptoms most frequently reported by individuals with HIV/AIDS, whether or not they are taking antiretroviral therapy (ART).

OBJECTIVES

This study used a longitudinal analytical methodology to analyze these symptoms together to determine whether symptom clusters are maintained over time and to determine whether there is a temporal relationship between fatigue and reports of neuropathic pain and muscle aches.

METHODS

This was a secondary analysis of a subset of data from a six-month, longitudinal, randomized, controlled trial of 243 HIV-positive individuals taking ART. Self-reported symptom frequency and intensity were recorded using the Revised Sign and Symptom Checklist for Persons with HIV disease at baseline (Month 0), one, three, and six months. Multilevel, logistic regression models were used to analyze time-lagged effects of muscle aches, numbness of the feet/toes, and fatigue to estimate any predictive and interactive effects that the symptoms have upon one another.

RESULTS

A significant relationship between muscle aches and fatigue intercepts was noted (odds ratio [OR]=1.80, P≤0.05). Significant relationships between numbness and fatigue also were noted for the entire measurement period (OR=2.70, P≤0.05). Time-lagged models showed persons reporting neuropathic-related numbness in one period were nearly twice as likely to report fatigue in subsequent periods (OR=1.89, P≤0.05). The final model revealed that the addition of muscle aches and numbness explained 28% of the random variance in the occurrence of fatigue. Between-person descriptive variables including years living with HIV, age, having an AIDS diagnosis, ethnicity, and nucleoside reverse transcriptase inhibitor treatment regimens with stavudine, zalactabine, or didanosine did not significantly explain any additional model variation.

CONCLUSION

These findings are consistent with physiological research and provide evidence that analyzing multiple symptom change over time can provide a more accurate representation of an individual's symptom experience. When evaluating patients with muscle aches or numbness, particularly when both symptoms are present, an evaluation of fatigue should be considered. Similarly, if fatigue is reported, underlying physiological assessments for neuropathic symptoms and muscle aches may be considered.

The impact of acculturation on utilization of HIV prevention services and access to care among an at-risk Hispanic population

INTRODUCTION

HIV/AIDS disproportionately affects Hispanics in the United States, a diverse and heterogeneous population. The purpose of this study was to evaluate the relationship of acculturation with HIV and hepatitis C testing, and access to care among Hispanics at risk for HIV.

METHODS

We recruited 600 Hispanics from STD clinics, community-based organizations, and needle exchange programs in Los Angeles County.

RESULTS

Low levels of acculturation were significantly associated with having fewer HIV tests (OR 1.98, 95% CI 1.24, 3.15), no hepatitis C tests (OR 2.61, 95% CI 1.77, 3.84), testing positive for HIV (OR 2.67, 95% CI 1.04, 6.83), and low levels of access to care (beta=0.06; p<.05).

CONCLUSIONS

Low levels of acculturation are an important barrier to the use of HIV-related health care services. Our findings may inform the development of effective interventions that address the cultural and behavioral differences among Hispanic subgroups.

The association of stigma with self-reported access to medical care and antiretroviral therapy adherence in persons living with HIV/AIDS

BACKGROUND

The stigma of HIV-infection may profoundly affect the lives of persons living with HIV/AIDS (PLHA). However few studies have examined the association of HIV stigma with multiple components of HIV treatment and care.

OBJECTIVES

To estimate the association between HIV stigma and: self-reported access to care, regular source of HIV care, and antiretroviral therapy adherence; and to test whether mental health mediates these associations.

DESIGN

Cross-sectional study.

PARTICIPANTS

202 PLHA living in Los Angeles County in 2007.

MEASUREMENTS

Participants completed an anonymous survey, assessing internalized HIV stigma (28-items, alpha = 0.93), self-reported access to medical care (six items, alpha = 0.75), regular source of HIV care, and antiretroviral therapy (ART) adherence.

RESULTS

One-third of participants reported high levels of stigma; 77% reported poor access to care; 42.5% reported suboptimal ART adherence; and 10.5% reported no regular source of HIV care. In unadjusted analysis, those reporting a high level of stigma were more likely to report poor access to care (OR = 4.97, 95% CI 2.54-9.72), regular source of HIV care (OR = 2.48, 95% CI 1.00-6.19), and ART adherence (OR = 2.45, 95% CI 1.23-4.91). In adjusted analyses, stigma was significantly associated with poor access to care (OR = 4.42, 95% CI 1.88-10.37), but not regular source of HIV care or ART adherence. Mental health mediated the relationship between stigma and ART adherence, but not poor access to care or regular source of HIV care.

CONCLUSIONS

The association of stigma with self-reported access to care and adherence suggests that efforts to improve these components of HIV care will require a better understanding of the possible effects of stigma and its mediators.

A comparison of consumer-directed and agency-directed personal assistance services programmes

PURPOSE

To compare a consumer-directed personal assistance services (PAS) programme with an agency-directed PAS programme.

METHOD

A convenience sample was used for this cross-sectional study with one data collection point. Outcomes were compared for consumer-directed and agency-directed PAS. Hierarchical regressions were also used to determine the predictors of outcomes across PAS programmes. In-home interviews were conducted by a trained data collector from April 2000 to December 2001.

RESULTS

Participants in the consumer-directed programme reported more choices over PAS and satisfaction with PAS. Self-reported outcomes were primarily predicted by the following variables: service arrangement, type of provider, importance of directing PAS, health status, number of personal assistants used in past 12 months, sufficient PAS hours received, and social support.

CONCLUSIONS

Consumer-directed PAS enhances outcomes for many persons with disabilities. Self-reported outcomes are affected by many factors that could be addressed in PAS programme development.

Factors associated with HIV viral load in a respondent driven sample in Los Angeles

This study used a modified version of the Behavioral Model for Vulnerable Populations to examine the predisposing, enabling, and need factors associated with detectable viral load (VL). HIV status was measured using saliva and confirmed by blood. Of 797 persons enrolled, 193 were HIV positive and provided VL counts. A hierarchical multivariate logistic regression approach demonstrated that the predisposing factors of homelessness and recent substance abuse, particularly methamphetamine abuse, had a negative association with VL. The negative association of homelessness on VL was weakened with the introduction of enabling and need utilization factors. Mediation analysis indicated homelessness and HIV medication taking significantly associated with methamphetamine use as a predictor of detectable viral load. Guided policy to address substance abuse among those who are HIV positive is needed to improve biological outcomes.

Confidentiality or continuity? Family caregivers' experiences with care for HIV/AIDS patients in home-based care in Lesotho

In the context of poor access to antiretroviral therapies in sub-Saharan Africa, the minimum treatment package intended to treat opportunistic infections common with HIV infection is inadequate but appealing, since it presumes universal coverage of medical care for patients living with HIV and AIDS. The overall objective of this study was to analyse the challenges which family caregivers encountered in home-based care when they tried to access medical treatment for home-based AIDS patients in the context of confidentiality and limited medical care. A qualitative study using in-depth interviews with a sample of 21 family caregivers -16 females and 5 males aged between 23 and 85 years was conducted with the assistance of health personnel in two hospitals in Lesotho. Using the concept of continuity of care, this article discusses the experiences of family caregivers about home care, including their experiences of adherence to confidentiality by health care professionals and non-disclosure of AIDS as the context of illness, the circumstances under which the caregivers initiated caregiving and sought medical care, and how these factors could be stressors in caregiving. There was continuity of care where the caregivers obtained hospital support. However, when confidentiality was adhered to the caregivers were frustrated by lack of information, disrupted treatment, exclusion of their perspectives in medical care, failure to secure hospitalisation, ambiguous goals and non-responsiveness, so that continuity of care was jeopardised. Thus it can be concluded that professional-assisted disclosure benefited the patients because it facilitated continuity of care through the caregivers.

The effect of perceived stigma from a health care provider on access to care among a low-income HIV-positive population

Perceived stigma in clinical settings may discourage HIV-infected individuals from accessing needed health care services. Having good access to care is imperative for maintaining the health, well being, and quality of life of persons living with HIV/AIDS (PLWHAs). The purpose of this prospective study, which took place from January 2004 through June 2006, was to evaluate the relationship between perceived stigma from a health care provider and access to care among 223 low income, HIV-infected individuals in Los Angeles County. Approximately one fourth of the sample reported perceived stigma from a health care provider at baseline, and about one fifth reported provider stigma at follow up. We also found that access to care among this population was low, as more than half of the respondents reported difficulty accessing care at baseline and follow up. Perceived stigma was found to be associated with low access to care both at baseline (odds ratio [OR] = 3.29; 95% confidence interval [CI] = 1.55, 7.01) and 6-month follow up (2.85; 95% CI = 1.06, 7.65), even after controlling for sociodemographic characteristics and most recent CD4 count. These findings are of particular importance because lack of access or delayed access to care may result in clinical presentation at more advanced stages of HIV disease. Interventions are needed to reduce perceived stigma in the health care setting. Educational programs and modeling of nonstigmatizing behavior can teach health care providers to provide unbiased care.

Quality of life in Polish respondents: psychometric properties of the Polish WHOQOL-Bref

The aim of this study was to examine the validity and reliability of the Polish WHOQOL - Bref in a sample of 908 respondents. The Bref is a generic quality of life (QoL) instrument designed for cross - cultural use. Correlational and multivariate analyses confirmed the relevancy of individual items and domains supporting the construct validity of the scale. Multiple regression analyses of the domain scores with two overall questions (dependent variable) showed that all four domains made a significant contribution in explaining the variance in overall QoL. The psychological domain made the strongest contribution (unstandardized B coefficient = 0.10, r2 = 0.41), followed by the social, environmental and physical domains. When overall health satisfaction was considered as the dependent variable, the physical domain contributed most strongly (unstandardized B coefficient = 0.21, r2= 0.43) followed by the psychological and environmental domains. Exploratory factor analyses resulted in a four factors solution with 24 items explaining 49.6% of the cumulative variance. Confirmatory factor analyses lended marginal support for the goodness of fit of the four-domain model. The physical domain was found to be strongest in differentiating between unhealthy and healthy subjects, followed by psychological and social domains. Acceptable internal consistency was shown with Cronbach's alpha coefficients being greater than 0.70 for all domains with the exception of the social domain. Further exploration of the scales validity and conceptual clarity need further testing in Polish and international samples.

Setting and organization of care for persons living with HIV/AIDS

BACKGROUND

Treating the world's 40.3 million persons currently infected with HIV/AIDS is an international responsibility that involves unprecedented organizational challenges. Key issues include whether care should be concentrated or decentralized, what type and mix of health workers are needed, and which interventions and mix of programs are best. High volume centres, case management and multi-disciplinary care have been shown to be effective for some chronic illnesses. Application of these findings to HIV/AIDS is less well understood.

OBJECTIVES

Our objective was to evaluate the association between the setting and organization of care and outcomes for people living with HIV/AIDS.

SEARCH STRATEGY

Computerized searches from January 1, 1980 to December 31, 2002 of MEDLINE, EMBASE, Dissertation Abstracts International (DAI), CINAHL, HealthStar, PsychInfo, PsychLit, Social Sciences Abstracts, and Sociological Abstracts as well as searches of meeting abstracts and relevant journals and bibliographies in articles that met inclusion criteria. Searches included articles published in English and other languages.

SELECTION CRITERIA

Articles were considered for inclusion if they were observational or experimental studies with contemporaneous comparison groups of adults and/or children currently infected with HIV/AIDS that examined the impact of the setting and/or organization of care on outcomes of mortality, opportunistic infections, use of HAART and prophylaxis, quality of life, health care utilization, and costs for patient with HIV/AIDS.

DATA COLLECTION AND ANALYSIS

Two authors independently screened abstracts to determine relevance. Full paper copies were reviewed against the inclusion criteria. The findings were extracted by both authors and compared. The 28 studies that met inclusion criteria were too disparate with respect to populations, interventions and outcomes to warrant meta-analysis.

MAIN RESULTS

Twenty-eight studies were included involving 39,776 study subjects. The studies indicated that case management strategies and higher hospital and ward volume of HIV-positive patients were associated with decreased mortality. Case management was also associated with increased receipt of ARVs. The results for multidisciplinary teams or multi-faceted treatment varied. None of the studies examined quality of life or immunological or virological outcomes. Healthcare utilization outcomes were mixed.

AUTHORS' CONCLUSIONS

Certain settings of care (i.e. high volume of HIV positive patients) and models of care (i.e. case management) may improve patient mortality and other outcomes. More detailed descriptions of care models, consistent definition of terms, and studies on innovative models suitable for developing countries are needed. There is not yet enough evidence to guide policy and clinical care in this area.

A pilot study of health beliefs and attitudes concerning measures of antiretroviral adherence among prisoners receiving directly observed antiretroviral therapy

High level adherence to antiretroviral therapy (ART) is required to achieve and maintain suppression of HIV replication. Although directly observed therapy (DOT) has been suggested as an intervention to improve adherence, there is a paucity of data describing the attitudes and beliefs regarding DOT for ART among HIV-infected individuals. This study was designed to evaluate the acceptability and psychometric properties of a survey instrument for use in assessing barriers and facilitators of adherence to ART DOT in prison. From July 1, 1999 to April 1, 2000, we piloted an interviewer-administered questionnaire to assess health beliefs and attitudes regarding HIV treatment among 65 HIV-infected prison inmates receiving one or more of their antiretrovirals via directly observed therapy (DOT). The first 24 participants were administered the questionnaire to determine the feasibility of surveying prisoners in a correctional setting. There were no adherence data collected on these participants. The remaining 41 participants had their adherence measured in addition to receiving the questionnaire. Thirty-one were included in the final analysis because 10 did not complete the study. Multiple antiretroviral adherence measures (electronic device medication monitoring [eDEM] caps, medication administration records [MARs], and pill counts) were assessed among a subset of the participants (n = 31) and correlated to the instrument response items. The median internal consistency reliability coefficient for the multi-item scales was 0.79. The strongest correlation between inmates' beliefs and their adherence was between "positive beliefs about protease inhibitors" and the MAR adherence measure (r = 0.72; p < 0.001). This study provides preliminary support for the psychometric properties of the survey in this correctional setting.

Social support, disclosure, and use of antiretroviral therapy

This paper investigates the association between social support, disclosure of HIV/AIDS, and odds of initiating combination antiretroviral drug therapy in its first years on the market. Data are drawn from the first three rounds of the Community Health Advisory and Information Network (CHAIN) survey, collected between 1994 and 1997. CHAIN documents service needs and rates of service utilization among a representative sample of persons with HIV/AIDS in New York City. A two-step logistic regression estimated associations between (1) perceived social support and use of combination antiretroviral therapy, and (2) the interaction between concealing HIV/AIDS and perceived social support. Results offered evidence that the positive association between social support and use of highly active antiretroviral treatment (HAART) and other combination antiretroviral therapies is contingent upon disclosure of HIV status within the household or among friend and acquaintance networks. A positive association between social support and odds of using combination therapy was only observed among those who disclosed their HIV status.

Theoretical and methodological issues in conducting research related to health care utilization among individuals with HIV infection

Although empirical information on resource use during HIV infection is vital to improving quality of care, the issues involved in conducting research on resource use have received little attention in the medical literature. The purpose of this paper is to review the theoretical and methodological issues of conducting research on health care utilization patterns among persons with HIV/AIDS. Conceptual definitions of utilization are compared and contrasted. Three theoretical frameworks, the Andersen Behavioral Model, the Health Belief Model, and the Biopsychosocial Model are described to illustrate their applicability in future research studies. Research designs, measurement considerations, sampling approaches, and existing data sources on utilization are reviewed. Recommendations for health care utilization research are summarized and highlight the importance of designing studies and generating data for investigation of the factors facilitating patients' use of an optimal array of services including prevention, long-term, and rehabilitation care.

A comparative review of health-related quality-of-life measures for use in HIV/AIDS clinical trials

With the advent of highly active antiretroviral therapy (HAART), HIV-infected patients are living longer and are concerned not only with a treatment's ability to extend their life but also with the quality of the life they are able to lead. Regulatory authorities are also paying closer attention to the use of health-related quality-of-life (HR-QOL) measures in clinical trials and to the subsequent claims that are made based on the results. This paper reviews existing HR-QOL measures reported in the HIV/AIDS literature since 1990 and identifies those most worthy of consideration for use in future clinical trials.A comprehensive review following predefined selection criteria was conducted. Generic and HIV-targeted measures were assessed for content and practicality for the clinical trial setting. The generic measures were additionally reviewed for the ability to produce preference-based index scores and for the existence of normative general population data. Three generic and six HIV-targeted measures met these selection criteria and were then assessed more fully in terms of their development (HIV-targeted measures), psychometric properties and appropriateness for use in clinical trials.It was determined that each of the selected generic measures (i.e. Medical Outcomes Study [MOS] 36-Item Short Form Survey Instrument [SF-36], EQ-5D, Health Utilities Index [HUI]) could serve as a useful adjunct to an HIV-targeted measure in a trial. The Functional Assessment of HIV Infection (FAHI) and MOS-HIV health survey were deemed the two most appropriate HIV-targeted measures. Each of the measures can be self-administered in < or = 10 minutes and there was ample evidence of their excellent psychometric properties. However, they would not be optimal in all HIV-infected subgroups (e.g. treatment naive vs advanced; adolescents vs older adults) targeted for clinical trial interventions. Although there is no one best HR-QOL measure for use in HIV/AIDS clinical trials, based on our review criteria we identified three generic and two HIV-targeted candidate measures. However, these measures have their limitations and it is clear that greater consensus needs to develop regarding more effective and efficient approaches to HR-QOL measurement in HIV/AIDS clinical trials. Along with the increasingly complex HR-QOL measurement task resulting from changes in the HIV-infected population and shifts in the HR-QOL burden associated with HIV infection and its treatment over the past 25 years, it is increasingly important that HR-QOL outcomes become viable endpoints in HIV/AIDS clinical trials.

The association of health-related quality of life with survival among persons with HIV infection in the United States

OBJECTIVES

Both clinical trials and observational studies of persons with HIV infection commonly include health-related quality of life (HRQOL) measures, but less is known about the relation of HRQOL to survival among persons with HIV since the development of effective antiretroviral treatment.

DESIGN/PARTICIPANTS

Prospective cohort study of a national probability sample of 2,864 adults receiving HIV care.

INDEPENDENT VARIABLES

The main independent variables were derived from the HIV Cost and Services Utilization Study (HCSUS) HRQOL measure, and include physical and mental HRQOL summary scores (divided into quartiles) constructed from the following items administered at baseline: physical functioning (9 items, alpha=0.91), role functioning (2 items, alpha=0.85), pain (2 items, alpha=0.84), general health perceptions (3 items, alpha=0.80), emotional well-being (7 items, alpha=0.90), social functioning (2 items, alpha=0.82), energy (2 items, alpha=0.74), and a single-item measure of disability days (days in bed for at least 0.5 day due to health).

MAIN OUTCOME VARIABLE

Death between January 1996 and December 1999.

ANALYSIS

Descriptive and multivariate adjusted Cox proportional hazards regression analysis of survival by physical and mental HRQOL.

RESULTS

By December 1999, 17% of the sample had died. In unadjusted analysis, persons in the higher quartiles of physical HRQOL, as well as those in the higher quartiles of mental HRQOL at baseline, had significantly better survival than those in lower quartiles. In multiple regressions controlling for a number of sociodemographic and clinical variables, the hazard of death for those in the highest quartile of physical HRQOL was one quarter of that for those in the lowest quartile. This difference was similar in magnitude to that observed for being on highly active antiretroviral therapy versus no antiretrovirals in this population. By contrast, there was no unique association of mental HRQOL with survival.

CONCLUSIONS

Physical HRQOL added prognostic information over and above the sociodemographic and routinely available clinical data such as CD4 count and stage of HIV infection. Measurement of HRQOL, which is often performed to identify problems or assess outcomes, is also useful prognostically.

Sociodemographic differences in access to care among Hispanic patients who are HIV infected in the United States

This study evaluated associations between sociodemographic factors and access to care, use of highly active antiretroviral therapy, and patients' ratings of care among Hispanic patients who are HIV infected; we used data from the HIV Cost and Services Utilization Study. Gender, insurance, mode of exposure, and geographic region were associated with access to medical care. Researchers and policymakers should consider sociodemographic factors among Hispanic patients who are HIV positive when designing and prioritizing interventions to improve access to care.

Impact of indinavir on the quality of life in patients with advanced HIV infection treated with zidovudine and lamivudine

OBJECTIVE

In AIDS Clinical Trial Group (ACTG) study 320, triple-combination antiretroviral therapy including indinavir significantly slowed progression to acquired immunodeficiency syndrome or death, compared with treatment with dual nucleoside reverse-transcriptase inhibitors (NRTIs) alone, in zidovudine-experienced patients with advanced human immunodeficiency virus (HIV) infection. We examined the impact of indinavir on quality of life in participants from this study.

METHODS

A total of 1156 protease inhibitor- and lamivudine-naive patients stratified by CD4 cell count (<or=50 and 51-200 cells/mm(3)) were randomized to receive zidovudine (or stavudine) and lamivudine, with or without indinavir. Health-related quality of life was measured using the ACTG QoL601-602 questionnaire, which assesses general health status measured on a visual analogue scale and 8 specific health-related domains. Quality-adjusted survival time was estimated using the visual analogue scale for general health.

RESULTS

Mean changes in general health scores after 24 weeks were +2.9 in the triple-therapy group versus -0.2 in the dual-therapy group (P=.018). By week 24, scores in all specific domains were higher with triple-drug therapy than dual-drug therapy, with statistically significant differences in role function, energy, and pain scores. Benefits of triple-drug therapy were largely confined to patients with CD4 cell counts of <or=50 cells/mm(3). Quality-adjusted survival time did not differ significantly between the 2 treatment groups.

CONCLUSIONS

Triple-drug therapy with indinavir and 2 NRTIs resulted in a significant improvement in general health status after 24 weeks, especially in patients with low CD4 cell counts. Patients receiving triple-drug therapy also had significantly better role function, energy, and pain scores than did patients treated with dual-drug therapy.

Disparities in HIV treatment and physician attitudes about delaying protease inhibitors for nonadherent patients

BACKGROUND

Current HIV treatment guidelines recommend delaying antiretroviral therapy for nonadherent patients, which some fear may disproportionately affect certain populations and contribute to disparities in care.

OBJECTIVES

To examine the relationship of physician's attitude toward prescribing protease inhibitors (PIs) to nonadherent patients with disparities in PI use and with health outcomes.

DESIGN

Prospective cohort study.

PATIENTS AND SETTING

A national probability sample of HIV-infected adults in the United States and their health care providers was surveyed between January 1996 and January 1998. We analyzed data on 1717 patients eligible for PI treatment and the 367 providers who cared for them.

MEASUREMENTS

Providers' attitude toward prescribing PIs to nonadherent patients, time until patients' first receipt of PIs, mortality, and physical health status.

MAIN RESULTS

Eighty-nine percent of providers agreed that patient adherence is important in their decision to prescribe PIs (Selective) while 11% disagreed (Nonselective). Patients who had a Selective provider received PIs later than those with a Nonselective provider (P =.05). Adjusting for patient demographics and health characteristics and provider demographics, HIV knowledge, and experience, Latinos, women, and poor patients received PIs later if their provider had a Selective attitude but as soon as others if their provider had a Nonselective attitude. African-American patients received PIs later than whites, irrespective of their providers' prescribing attitude. Patients with Selective providers had similar odds of mortality than those with Nonselective providers (odds ratio, 1.1; 95% confidence interval, 0.6 to 2.0), but had slightly worse adjusted physical health status at follow-up (49.1 vs 50.4, respectively; P =.04), after controlling for baseline physical health status and other patient and provider covariates.

CONCLUSIONS

Most providers consider patient adherence an important factor in their decision to prescribe PIs. This attitude appears to account for the relatively later use of PI treatment among Latinos, women, and the poor. Given the rising HIV infection rates among minorities, women, and the poor, further investigation of this treatment strategy and its impact on HIV resistance and outcomes is warranted.

Longitudinal study of mental health and psychosocial predictors of medical treatment adherence in mothers living with HIV disease

Cross-sectional studies to date that examine psychosocial correlates of antiretroviral adherence have insufficiently addressed the challenges of long-term adherence. This longitudinal study examined mental health, substance abuse, and psychosocial predictors of long-term adherence to antiretroviral medications and medical appointments among HIV-seropositive mothers recruited from an infectious disease clinic of a large urban medical center. Individual interviews were conducted at baseline and two follow-up points, 8 to 18 months after enrollment. Based on a model of health behavior, we examined psychiatric and psychosocial predictors of adherence to antiretroviral medications and medical appointments over time. Presence of a psychiatric disorder, negative stressful life events, more household members, and parenting stress were significantly associated with both missed pills and missed medical appointments at follow-up. Baseline substance abuse was associated with missed pills at follow-up and lack of disclosure to family members at baseline was associated with missed medical appointments at follow-up. These findings suggest that interventions that integrate mental health, substance abuse and medical care may be important to improving the medical adherence and health of HIV-seropositive women, particularly in multistressed populations with substantial caregiving and other life demands.

Risk factors for pneumonia in urban-dwelling HIV-infected women: a case-control study in Nairobi, Kenya

In sub-Saharan Africa, respiratory tract infections (RTI) are the leading cause of serious morbidity and mortality in HIV-infected persons. This study sought to investigate demographic, socioeconomic, and environmental risk factors for pneumonia in a cohort of HIV-infected women. The authors performed a nested case-control study in a cohort of HIV-1-infected adults followed in Nairobi, Kenya. Thirty-nine women who developed pneumonia during the follow-up period were selected as cases, and 66 women who did not develop pneumonia were randomly chosen to serve as control subjects. A questionnaire was administered in subjects' homes that assessed demographics, home environment, and socioeconomic status. Women were followed in the cohort for a median of 36.8 months (range, 27.3-39.3). Adjusting for length of follow-up period, factors associated with lower socioeconomic status (lower monthly spending [OR = 3.2; 95% CI, 1.2-8.4 per 10,000 Kenyan shilling decrease], having no savings [OR = 4.1; 95% CI, 1.4-11.9], less sturdy home construction material such as mud or cement walls [OR = 2.6; 95% CI, 1.1-5.9] or dirt floors [OR = 2.8; 95% CI, 1.0-7.6], and lack of a window in the home [OR = 5.5; 95% CI, 0.9-32.2]) and being widowed (OR = 4.3; 95% CI, 1.2-15.1) or single (OR = 3.3; 95% CI, 1.0-11.2) were associated with an increased risk of pneumonia. In multivariate analysis, widowed (AOR = 5.9; 95% CI, 1.3-26.3), single (AOR = 7.7; 95% CI, 1.6-36.4), and divorced (AOR = 4.5; 95% CI, 1.0-20.1) women, those without savings (AOR = 3.7; 95% CI, 1.2-11.7), and those living in more crowded and contagious conditions (AOR = 1.5; 95% CI, 1.1-2.1) remained at increased risk of pneumonia. If confirmed by prospective investigation, these findings could help identify persons and subpopulations of HIV-infected women with the greatest risk of pneumonia.

Effect of violence on utilization of services and access to care in persons with HIV

We analyzed the HIV Costs and Service Utilization Study data to determine the association of violence, assessed at baseline, with utilization of and access to health care at follow-up, among gay/bisexual male, heterosexual female, and heterosexual male HIV/AIDS patients. In multivariate analyses, male gay/bisexual violence victims had increased odds of reporting emergency department visits (odds ratio [OR], 1.74; 95% confidence interval [95% CI], 1.20 to 2.52), going without needed medical care because of expense (OR, 1.83; 95% CI, 1.06 to 3.18), and having poor ability to access medical specialists (OR, 1.96; 95% CI, 1.05 to 3.67). Further research is required to understand the association of violence with health care among gay/bisexual men with HIV/AIDS.

Predicting death from HIV/AIDS: a case-control study from Florida public HIV/AIDS clinics

BACKGROUND

After markedly decreasing for 3 years, HIV/AIDS mortality declined only slightly in 1999.

METHODS

The authors conducted a case-control study in four Florida urban public health HIV clinics to evaluate modifiable factors associated with HIV/AIDS mortality in a non-research setting. Structured chart review was conducted for 120 case-patients who died in 1999 and for 240 randomly selected control-patients. Risk factors associated with death in univariate analysis were entered into three conceptually related, matched logistic regression models.

RESULTS

In the final multivariate model, homelessness (adjusted odds ratio [AOR], 9.98; 95% confidence interval [CI], 2.34-42.5), Medicaid insurance (AOR, 3.10; 95% CI, 1.43-6.74), having a documented adherence problem (AOR, 3.50; 95% CI, 1.64-7.47), injection drug use (AOR, 2.46; 95% CI, 1.11-5.43), non-specific liver failure (AOR, 76.9; 95% CI, 6.79-870.9), interrupted highly active antiretroviral therapy (HAART) secondary to side effects (AOR, 4.00; 95% CI, 1.46-10.9), and not receiving HAART (AOR, 2.62; 95% CI, 1.03-6.68) were independent predictors of mortality.

CONCLUSIONS

In addition to medical and clinical indicators, several sociobehavioral-demographic factors remained important throughout the multivariate analysis. Improvement in care should include a focus on social circumstances of infected people. Special attention to the homeless, those with adherence problems, and those with liver disease is clearly indicated.

Does access to health care impact survival time after diagnosis of AIDS?

Lack of access to health care is often blamed for poor health outcomes, but this effect is not supported by existing HIV/AIDS literature. The authors examined the association between access to care and survival time after progression to AIDS, using survival analysis methods. This study combined data from two CDC sponsored studies of HIV-infected persons, a cross-sectional interview study and a longitudinal medical record review study. Study subjects included 752 persons who progressed to AIDS before December 31, 1999, and were patients at either of two major HIV care facilities in Detroit, MIchigan. Separate statistical models were used to test associations between survival time after meeting the criteria for AIDS and two indicators of access to health care: (1) perceived access to health care and (2) health care utilization patterns. Perceived access was not associated with survival time after AIDS, but patterns of health care utilization were significantly associated with survival time after AIDS (HR = 2.04, p < 0.001). Individuals who received a greater proportion of their care in the ER had a worse survival prognosis than those who received more of their health care in an outpatient clinic setting. It is crucial that we provide HIV-infected populations with tools that enable them to access a regular source of health care.

Response to symptoms among a U.S. national probability sample of adults infected with human immunodeficiency virus

Previous studies concerning disparities in Human Immunodeficiency Virus (HIV) services use among vulnerable groups did not control for specific clinical need for care such as symptom events. Using the Andersen Behavioral Model of Health Services Use, the authors determined whether minorities, women, and the less educated (vulnerable groups) were less likely to receive care for HIV symptoms. Persons enrolled in the HIV Cost and Services Utilization Study were asked whether they received care for their most bothersome symptom. Surprisingly, minorities and women were no more likely to go without care than other groups. Those with Medicaid, Medicare, private health maintenance organization (HMO) insurance, or no insurance were less likely to receive care for symptoms than those with private-non-HMO insurance. Vulnerable groups were no less likely to use services for HIV-related symptoms when need for care was considered. However, disparities may exist for symptom-specific care among HIV infected persons covered by public or HMO insurance.

Psychosocial factors associated with quality of life in Japanese patients with human immunodeficiency virus infection

The purpose of this study was to identify psychosocial factors, including coping style, that are associated with quality of life (QOL) in Japanese patients with human immunodeficiency virus (HIV) infection and to clarify the difference in coping style between patients with hemophilia and patients with sexually transmitted infection. We administered the World Health Organization QOL-26 questionnaire, the Mental Adjustment Toward Cancer scale, and the Social Support scale to 50 patients with HIV infection. Regarding QOL scores, Fighting Spirit was the positive coping style; Helplessness/Hopelessness and Anxious Preoccupation were negative coping styles. Psychological QOL scores in patients with hemophilia were lower than those in patients with sexually transmitted infection. Patients with hemophilia had a significantly weaker Fighting Spirit than patients with sexually transmitted infection.

Health-related quality of life in patients with human immunodeficiency virus infection in the United States: results from the HIV Cost and Services Utilization Study

PURPOSE

To measure health-related quality of life among adult patients with human immunodeficiency virus (HIV) disease; to compare the health-related quality of life of adults with HIV with that of the general population and with patients with other chronic conditions; and to determine the associations of demographic variables and disease severity with health-related quality of life.

SUBJECTS AND METHODS

We studied 2,864 HIV-infected adults participating in the HIV Cost and Services Utilization Study, a probability sample of adults with HIV receiving health care in the contiguous United States (excluding military hospitals, prisons, or emergency rooms). A battery of 28 items covering eight domains of health (physical functioning, emotional well-being, role functioning, pain, general health perceptions, social functioning, energy, disability days) was administered. The eight domains were combined into physical and mental health summary scores. SF-36 physical functioning and emotional well-being scales were compared with the US general population and patients with other chronic diseases on a 0 to 100 scale.

RESULTS

Physical functioning was about the same for adults with asymptomatic HIV disease as for the US population [mean (+/- SD) of 92+/-16 versus 90+/-17) but was much worse for those with symptomatic HIV disease (76+/-28) or who met criteria for the acquired immunodeficiency syndrome (AIDS; 58+/-31). Patients with AIDS had worse physical functioning than those with other chronic diseases (epilepsy, gastroesophageal reflux disease, clinically localized prostate cancer, clinical depression, diabetes) for which comparable data were available. Emotional well-being was comparable among patients with various stages of HIV disease (asymptomatic, 62+/-9; symptomatic, 59+/-11; AIDS, 59+/-11), but was significantly worse than the general population and patients with other chronic diseases except depression. In multivariate analyses, HIV-related symptoms were strongly associated with physical and mental health, whereas race, sex, health insurance status, disease stage, and CD4 count were at most weakly associated with physical and mental health.

CONCLUSIONS

There is substantial morbidity associated with HIV disease in adults. The variability in health-related quality of life according to disease progression is relevant for health policy and allocation of resources, and merits the attention of clinicians who treat patients with HIV disease.

Community, service, and policy strategies to improve health care access in the changing urban environment

Urban communities continue to face formidable historic challenges to improving public health. However, reinvestment initiatives, changing demographics, and growth in urban areas are creating changes that offer new opportunities for improving health while requiring that health systems be adapted to residents' health needs. This commentary suggests that health care improvement in metropolitan areas will require setting local, state, and national agendas around 3 priorities. First, health care must reorient around powerful population dynamics, in particular, cultural diversity, growing numbers of elderly, those in welfare-workplace transition, and those unable to negotiate an increasingly complex health system. Second, communities and governments must assess the consequences of health professional shortages, safety net provider closures and conversions, and new marketplace pressures in terms of their effects on access to care for vulnerable urban populations; they must also weigh the potential value of emerging models for improving those populations' care. Finally, governments at all levels should use their influence through accreditation, standards, tobacco settlements, and other financing streams to educate and guide urban providers in directions that respond to urban communities' health care needs.

A classification scheme for outcome indicators

PURPOSE

To provide a framework for classifying outcome indicators for a more comprehensive view of outcomes and quality.

METHODS

Review of outcomes literature published since 1974 from medicine, nursing, and health services research to identify indicators. Outcome indicators were clustered inductively.

FINDINGS

Three groups of outcome indicators were identified: patient-focused, provider-focused, and organization-focused. Although investigators tend to focus on a select few outcome indicators, such as patient satisfaction, quality of life, and mortality, many indicators exist to measure outcomes.

CONCLUSIONS

Selecting and integrating a wide array of outcome indicators from the various categories will provide a more balanced view of health care delivery as compared with focusing on a few common indicators or only one category.

The impact of competing subsistence needs and barriers on access to medical care for persons with human immunodeficiency virus receiving care in the United States

OBJECTIVES

To examine whether competing subsistence needs and other barriers are associated with poorer access to medical care among persons infected with human immunodeficiency virus (HIV), using self-reported data.

DESIGN

Survey of a nationally representative sample of 2,864 adults receiving HIV care.

MAIN INDEPENDENT VARIABLES

Going without care because of needing the money for food, clothing, or housing; postponing care because of not having transportation; not being able to get out of work; and being too sick.

MAIN OUTCOME MEASURES

Having fewer than three physician visits in the previous 6 months, visiting an emergency room without being hospitalized; never receiving antiretroviral agents, no prophylaxis for Pneumocystis carinii pneumonia in the previous 6 months for persons at risk, and low overall reported access on a six-item scale.

RESULTS

More than one third of persons (representing >83,000 persons nationally) went without or postponed care for one of the four reasons we studied. In multiple logistic regression analysis, having any one or more of the four competing needs independent variables was associated with significantly greater odds of visiting an emergency room without hospitalization, never receiving antiretroviral agents, and having low overall reported access.

CONCLUSIONS

Competing subsistence needs and other barriers are prevalent among persons receiving care for HIV in the United States, and they act as potent constraints to the receipt of needed medical care. For persons infected with HIV to benefit more fully from recent advances in medical therapy, policy makers may need to address nonmedical needs such as food, clothing, and housing as well as transportation, home care, and employment support.

A randomized study comparing instruments for measuring health-related quality of life in HIV-infected patients. Spanish MOS-HIV and MQOL-HIV Validation Group. Medical Outcomes Study HIV Health Survey

OBJECTIVE

To compare the feasibility, reliability, validity and sensitivity to change of the MOS-HIV and MQOL-HIV in order to determine their suitability for use in clinical research.

METHODS

Five hundred and fifty-eight HIV-infected patients and 80 healthy blood donors were randomly assigned to receive the MOS-HIV or MQOL-HIV. Test-retest reliability was assessed in 98 clinically stable patients, and responsiveness in 296 patients initiating or switching anti-retroviral treatment. Feasibility was assessed using mean time of administration and percentage of missing responses. Reliability was assessed using Cronbach's alpha and the intraclass correlation coefficient (ICC). Construct validity was assessed by correlating questionnaire scores with EuroQol-5D scores, number of symptoms, CD4 cell count and viral load. The area under the curve (AUC) was used for discrimination between patients and healthy donors, and HRQoL scores were compared across disease stage. Responsiveness was assessed by calculating the standardized effect size (SES).

RESULTS

Mean administration time was 16 minutes for both questionnaires. On the MOS-HIV 18.9% patients had missing responses compared with 33.6% on the MQOL-HIV. Cronbach's alpha values were higher for MOS-HIV sub-scales (0.78-0.89) than MQOL-HIV sub-scales (0.44-0.82), and neither instrument showed good test-retest reliability (ICC values of 0.24-0.85 for MOS-HIV versus 0.48-0.82 for MQOL-HIV). AUC values for the MOS-HIV were 0.6-0.86, compared with 0.5-0.79 for the MQOL-HIV, and the MOS-HIV had higher correlations with symptoms (r = -0.28 to 0.79) and EuroQol scores (r = 0.4-0.66) than the MQOL-HIV (r = -0.15 to 0.42 and r = -0.11 to 0.59, respectively). Neither instrument discriminated well between disease stages. Eight of 11 MOS-HIV sub-scales and the Mental Health Summary Score were responsive to change (SES, 0.18-0.36), compared with six of 10 MQOL-HIV sub-scales and MQOL Index (SES, 0.16-0.27).

CONCLUSIONS

Neither instrument demonstrated completely satisfactory psychometric properties for use in clinical research, although the MOS-HIV performed slightly better on feasibility and validity and the MQOL-HIV on test-retest reliability.

Applications of the Medical Outcomes Study health-related quality of life measures in HIV/AIDS

The leading health status instruments in human immunodeficiency virus (HIV) research are based on the pool of items developed as part of the Medical Outcomes Study (MOS). The measures include the SF-20, MOS-HIV, SF-36, SF-12, SF-56, SF-38 (Patient Reported Status and Experience Survey (PARSE)), SF-21 and HIV Cost and Service Utilization Study (HCSUS) questionnaires. The instrument length ranges from 12 to 56 items, covering two to 11 dimensions. Completion requires from 2 to 14 minutes. Subscales are scored on a 0-100 scale (a higher score indicates better health); physical and mental health or overall summary scores are available for most of the measures. Three of the instruments are available in multiple languages. The instruments have been administered to over 20,000 persons with HIV in descriptive studies and clinical trials and there is substantial evidence for their reliability, construct and predictive validity and responsiveness. In several studies the measures have shown important differences between treatments. Although existing measures do not assess all domains relevant to HIV disease, additional subscales are available from the MOS pool. Some of the subscales may be prone to floor and ceiling effects. However, summary scales that encompass all of the subscales reduce this issue. Selection among MOS measures should be dictated by specific questions, the balance of available time and resources, and practical concerns.