The influence of health-related quality of life and social characteristics on hospital use by patients with AIDS in the Boston Health Study

HIV Patients in the HCUP Database: A Study of Hospital Utilization and Costs

This study examines the utilization of hospital care by HIV patients in all hospitals in eight states (California, Colorado, Florida, Kansas, New Jersey, New York, Pennsylvania, and South Carolina), and examines the cost of hospital care for HIV patients in six of these states (California, Colorado, Kansas, New Jersey, New York, and South Carolina). The eight states in the sample account for more than 52% of all persons living with AIDS in the United States; the six states account for 39%. The unit of observation in both studies is a hospital admission by a patient with HIV. Hospital data were obtained from the Healthcare Cost and Utilization Project (HCUP), State Inpatient Database (SID), which is maintained by the Agency for Healthcare Research and Quality (AHRQ). The HCUP contains hospital discharge data and is a federal/state/industry partnership to build a multistate health care data system. Using multivariate analytic techniques and data from 2000, results indicate that cost and length of a hospital stay vary significantly across states after accounting for a patient's gender, insurance type, race, age, and number of diagnoses, as well as the teaching status and ownership category of the hospital.

The impact of unstable housing on emergency department use in a cohort of HIV-positive people in a Canadian setting

The social-structural challenges experienced by people living with HIV (PHA) have been shown to contribute to increased use of the emergency department (ED). This study identified factors associated with frequent and nonurgent ED use within a cohort of people accessing antiretroviral therapy (ART) in a Canadian setting. Interviewer-administered surveys collected socio-demographic information; clinical variables were obtained through linkages with the provincial drug treatment registry; and ED admission data were abstracted from the Department of Emergency Medicine database. Multivariate logistic regression was used to compute odds of frequent and nonurgent ED use. Unstable housing was independently associated with ED use (adjusted odds ratio [AOR] =1.94, 95% confidence interval [CI] 1.24-3.04]), having three or more ED visits within 6 months of the interview date [AOR: 2.03 (95% CI: 1.07-3.83)] and being triaged as nonurgent (AOR = 2.71, 95% CI: 1.19-6.17). Frequent and nonurgent use of the ED in this setting is associated with conditions requiring interventions at the social-structural level. Supportive housing may contribute to decreased health-care costs and improved health outcomes amongst marginalized PHA.

Homelessness prevention: the effect of a shallow rent subsidy program on housing outcomes among people with HIV or AIDS

This paper presents results of an evaluation of Project Independence (PI), a shallow rent subsidy program with services coordination support for very low income people with HIV or AIDS who live in Alameda County in the San Francisco Bay Area. By providing a small rental subsidy to eligible individuals and their families who are already stably housed, the philosophy of the program is to prevent homelessness before it starts. The housing outcomes of 185 PI clients were compared to those of 218 people who were not enrolled in the program but were presumed eligible for it, controlling for sociodemographic, HIV disease, and behavioral health characteristics. Using survival analysis techniques, non-program participants were found to be more likely to leave their rental housing at any given point in time compared to PI program participants. After one year of follow-up, while 99% of PI clients remained stably housed in their program-subsidized rental unit, only 32% of comparison group clients were still in rental housing. At two years, 96% of PI participants remained independently housed, compared to only 10% of non-participants. The success of the program suggests that Project Independence should be replicated and evaluated in other jurisdictions where a relatively high incidence and prevalence of HIV/AIDS is combined with a lack of affordable housing for low income households.

The effects of housing status on health-related outcomes in people living with HIV: a systematic review of the literature

INTRODUCTION

HIV infection is increasingly characterized as a chronic condition that can be managed through adherence to a healthy lifestyle, complex drug regimens, and regular treatment and monitoring. The location, quality, and/or affordability of a person's housing can be a significant determinant of his or her ability to meet these requirements. The objective of this systematic review is to inform program and policy development and future research by examining the available empirical evidence on the effects of housing status on health-related outcomes in people living with HIV/AIDS.

METHODS

Electronic databases were searched from dates of inception through November 2005. A total of 29 studies met inclusion criteria for this review. Seventeen studies received a "good" or "fair" quality rating based on defined criteria.

RESULTS

A significant positive association between increased housing stability and better health-related outcomes was noted in all studies examining housing status with outcomes of medication adherence (n = 9), utilization of health and social services (n = 5), and studies examining health status (n = 2) and HIV risk behaviours (n = 1).

CONCLUSIONS

Healthcare, support workers and public health policy should recognize the important impact of affordable and sustainable housing on the health of persons living with HIV.

Episodic homelessness and health care utilization in a prospective cohort of HIV-infected persons with alcohol problems

BACKGROUND

Because individuals with HIV/AIDS often have complex medical and social needs, the impact of housing status on medical service utilization is difficult to isolate from the impact of conditions that may worsen during periods of homelessness such as depression and substance abuse. We examine whether episodes of homelessness are independently associated with suboptimal medical utilization even when accounting for concurrent addiction severity and depression.

METHODS

We used data from a 30-month cohort of patients with HIV/AIDS and alcohol problems. Housing status, utilization (ambulatory visits, emergency department (ED) visits, and hospitalizations) and other features were assessed with standardized research interviews at 6-month intervals. Multivariable longitudinal regression models calculated incidence rate ratios (IRR) comparing utilization rates during 6-month intervals (homeless versus housed). Additional models assessed whether addiction severity and depressive symptoms could account for utilization differences.

RESULTS

Of the 349 subjects, 139 (39%) reported homelessness at least once during the study period; among these subjects, the median number of nights homeless per 6-month interview period was 30. Homelessness was associated with higher ED utilization (IRR = 2.17; 95% CI = 1.72-2.74) and hospitalizations (IRR = 2.30; 1.70-3.12), despite no difference in ambulatory care utilization (IRR = 1.09; 0.89-1.33). These associations were attenuated but remained significant when adjusting for addiction severity and depressive symptoms.

CONCLUSION

In patients with HIV/AIDS and alcohol problems, efforts to improve housing stability may help to mitigate intensive medical utilization patterns.

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.

Review: use of health care services among persons living with HIV infection: state of the science and future directions

Health care services for persons living with HIV have broadened from short-term, crisis-oriented, and palliative care to include preventive, acute, and long-term services because of advances in HIV treatment and earlier detection. This integrated literature review on utilization of HIV-related health care services provides information on barriers to access, disparities in treatments, and factors contributing to wasteful use of services. Early research focused on describing and quantifying use of in-hospital care. As HIV transformed into a chronic disease, research on utilization expanded into outpatient settings. Predisposing factors such as race, gender, and injection drug use, and enabling factors (i.e., insurance, social support systems, housing) were strong predictors of utilization patterns. Clinical factors, such as immune status, symptoms, and depression, as well as contextual factors (i.e., characteristics of clinicians, urban/rural residence) determined the amounts of services obtained. Additional research is recommended on the utilization of nursing and preventive services and care in rehabilitation settings, home health, and nursing homes. Understanding the patterns and predictors of resource use can facilitate health professionals' efforts in improving the health care delivery system for individuals with HIV infection.

Spirituality and sexual orientation: relationship to mental well-being and functional health status

BACKGROUND

Research has shown that spirituality has a positive effect on physical and mental health; however, few studies have explored the influence of spirituality and sexuality on mental well-being and functional health status in people with human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS).

AIM

This descriptive cross-sectional study was designed to examine the relationships among spirituality, sexual orientation, mental well-being and aspects of functional health status (physical, role, social and cognitive functioning) in a sample of 117 African-American men and women living with HIV/AIDS.

METHODS

Spirituality was measured using the Spiritual Well-Being Scale. A demographic questionnaire gathered data on sexual orientation, age and gender. The Medical Outcomes Study Questionnaire-30 assessed aspects of functional health status and mental well-being. The HIV Symptom Checklist for Persons With HIV disease was used to collect data on HIV symptoms. The data were collected in 1996.

FINDINGS

The findings indicate that spirituality had a direct relationship with cognitive and social functioning and was inversely related to HIV symptoms. Sexual orientation had direct relationships with mental well-being, cognitive, physical, social and role functioning. t-Tests showed that heterosexual participants reported poorer mental well-being and functional health status compared with homosexual participants. Regression analysis showed that spirituality, sexual orientation, age and HIV symptoms contributed significantly to mental well-being and functional health status.

CONCLUSIONS

The regression analysis showed that spirituality, sexual orientation, age and HIV symptoms contributed significantly to mental well-being and functional health status. Further research is needed to explore the various ways that sexual orientation influences health status findings in those with HIV disease in certain segments of the population. The findings support the inclusion of spirituality as a variable when examining mental well-being and physical health. Finally, given the limitations of the design, more rigorous methods should be employed to understand further the contribution of spirituality to the health status of African-Americans living with HIV, because of its social importance to this particular community.

Location, race, and hospital care for AIDS patients: an analysis of 10 states

This study is the first statewide comparison of hospital utilization and inpatient mortality rates for people with acquired immune deficiency syndrome (AIDS). Data from 120,772 hospital discharge abstracts for all AIDS-related admissions in 10 states (California, Colorado, Florida, Iowa, Kansas, Maryland, New Jersey, New York, Pennsylvania, and South Carolina) in 1996 were combined with data on the number and the racial and ethnic characteristics of all people living with AIDS (PLWAs) in each state. These data were used to derive population-based estimates of the use of hospital services per PLWA and of inpatient mortality rates in each state. Multivariate analyses examined sources of variation in inpatient length of stay and inpatient mortality. The primary finding of this study is that hospital utilization rates and inpatient mortality rates for people with AIDS vary substantially across states and among racial and ethnic groups within states even after adjusting for severity of illness. Blacks and Hispanics had longer hospital stays and were more likely to die in the hospital than whites. State-level policies, such as home and community-based waiver programs and enhanced HIV reimbursement rates, significantly affected hospital use.

Preventable inpatient time: adequacy of electronic patient information systems

OBJECTIVES

This study assessed hospital electronic patient information systems (EPIS) for inclusion of variables associated with avoidable and extended hospitalization (preventable inpatient time).

METHODS

We searched MEDLINE and HealthSTAR databases to identify predictors of preventable inpatient time. We then audited the admissions process and the handwritten medical record at 1 hospital, and the EPIS at all hospitals, affiliated with the Yale University School of Medicine for inclusion of the predictors.

RESULTS

Whereas the written medical record included all 58 predictors, the EPIS of the 10 hospitals surveyed included an average of only 38% of the predictors.

CONCLUSIONS

The conventional approach to information gathering during hospital admission is highly inefficient. Revising EPIS to include predictors of preventable inpatient time could enhance efficiency and quality, while reducing costs, of hospital care.

Hospitalization parameters in patients infected with HIV: an analysis of the period 1992-1997

The course of several hospitalization parameters of HIV-infected patients in a general hospital during the past 6 years was analyzed. There was a decrease observed in the number of non-AIDS diagnosed patients admitted during the observation period, but this decrement was noted only in the past 2 years in AIDS patients. This decline was not accounted for by a decrease in the incidence of AIDS patients seen each year, and was very probably due to the efficacy of antiretroviral combination therapy. The average length of stay of both AIDS and non-AIDS diagnosed patients decreased markedly during the first 3 years to stabilize during the remaining observation period. An analysis of the mode in which the patients were seen for the first time in the hospital (admitted from the emergency department because of complications of advanced HIV infection or attended in the outpatient clinic) revealed that, after a steady decrease from 1985 to 1995 in the relative proportion of patients hospitalized (p < 0.0001), there was an inversion of the downward trend in the past two years (p = 0.04). Most of the patients admitted during these 2 years were persons who did not know that they were infected with HIV. This observation reinforces the need for education campaigns and voluntary HIV testing which are particularly directed toward persons with high risk factors for the infection, in order to provide medical care before complications of advanced HIV infection appear.

Costs and outcomes of AIDS care: comparing a health maintenance organization with fee-for-service systems in the Boston Health Study

OBJECTIVE

A 4-month observational cohort study was performed to compare the performance of one health maintenance organization (HMO) with two fee-for-service (FFS) systems in Boston, Massachusetts in treating 255 patients with AIDS.

MAIN OUTCOME MEASURES

Total 4-month costs; cost subcomponents, including inpatient, outpatient, home care, and zidovudine costs; functional status (difficulties with activities of daily living); and satisfaction with care.

RESULTS

Compared with FFS patients, HMO patients were better educated, more often white, less often on Medicaid, and more often reported homosexual or bisexual behaviors as HIV risk factors (all factors, p = .001). Both groups had similar duration of AIDS, baseline hemoglobin levels, and leukocyte counts. Total 4-month costs at the HMO were significantly lower than those in the FFS settings ($4799 U.S. versus $8540 U.S.; p = .013), as were outpatient costs ($1131 U.S. versus $1614 U.S.; p = .001), after adjustment for sociodemographic factors, baseline functioning, main HIV risk factor, and other clinical variables. Adjusted physical functioning (p = .32) and patient satisfaction (p = .82). were similar between systems.

CONCLUSIONS

The HMO had significantly lower total costs without any observable decrement in functional outcomes or patient satisfaction. The largest component of these cost savings came from reduced spending on inpatient care, but the HMO also spent less on outpatient and home care. Better coordination of care at the HMO may have been responsible for these lower costs.

Psychometric validation of the revised Functional Assessment of Human Immunodeficiency Virus Infection (FAHI) quality of life instrument

The revised Functional Assessment of Human Immunodeficiency Virus Infection (FAHI) quality of life (QoL) instrument has been updated and expanded to provide more complete and accurate coverage of human immune deficiency virus/acquired immune deficiency syndrome (HIV/AIDS)-related QoL. Factor analysis and the Rasch measurement model were used to determine a new subscale structure for the FAHI. The content of these subscales, including physical well-being (ten items, alpha = 0.91), function and global well-being (13 items, alpha = 0.86), emotional well-being/living with HIV (10 items, alpha = 0.82), social well-being (eight items, alpha = 0.73), and cognitive functioning (three items; alpha = 0.75), reflect both general illness- and HIV/AIDS-specific QoL concerns: a total QoL score can also be calculated for the FAHI (44 items, alpha = 0.91). Psychometric evaluation revealed good internal consistency reliability for the FAHI and its subscales. In addition, construct validity, known groups validity and sensitivity to change were demonstrated by significant associations between the FAHI and additional indicators of functional status, psychological symptoms, stress and illness severity. In summary, the FAHI is a psychometrically sound instrument that captures multiple important dimensions of HIV/AIDS-related QoL. It is brief, easy to administer and score, has been translated into nine languages other than English and is appropriate for use in clinical trials and clinical practice.