The cost of comorbidities in treatment for HIV/AIDS in California

Costs of multimorbidity: a systematic review and meta-analyses

BACKGROUND

Multimorbidity is a rising global phenomenon, placing strains on countries' population health and finances. This systematic review provides insight into the costs of multimorbidity through addressing the following primary and secondary research questions: What evidence exists on the costs of multimorbidity? How do costs of specific disease combinations vary across countries? How do multimorbidity costs vary across disease combinations? What "cost ingredients" are most commonly included in these multimorbidity studies?

METHODS

We conducted a systematic review (PROSPERO: CRD42020204871) of studies published from January 2010 to January 2022, which reported on costs associated with combinations of at least two specified conditions. Systematic string-based searches were conducted in MEDLINE, The Cochrane Library, SCOPUS, Global Health, Web of Science, and Business Source Complete. We explored the association between costs of multimorbidity and country Gross Domestic Product (GDP) per capita using a linear mixed model with random intercept. Annual mean direct medical costs per capita were pooled in fixed-effects meta-analyses for each of the frequently reported dyads. Costs are reported in 2021 International Dollars (I$).

RESULTS

Fifty-nine studies were included in the review, the majority of which were from high-income countries, particularly the United States. (1) Reported annual costs of multimorbidity per person ranged from I$800 to I$150,000, depending on disease combination, country, cost ingredients, and other study characteristics. (2) Our results further demonstrated that increased country GDP per capita was associated with higher costs of multimorbidity. (3) Meta-analyses of 15 studies showed that on average, dyads which featured Hypertension were among the least expensive to manage, with the most expensive dyads being Respiratory and Mental Health condition (I$36,840), Diabetes and Heart/vascular condition (I$37,090), and Cancer and Mental Health condition in the first year after cancer diagnosis (I$85,820). (4) Most studies reported only direct medical costs, such as costs of hospitalization, outpatient care, emergency care, and drugs.

CONCLUSIONS

Multimorbidity imposes a large economic burden on both the health system and society, most notably for patients with cancer and mental health condition in the first year after cancer diagnosis. Whether the cost of a disease combination is more or less than the additive costs of the component diseases needs to be further explored. Multimorbidity costing studies typically consider only a limited number of disease combinations, and few have been conducted in low- and middle-income countries and Europe. Rigorous and standardized methods of data collection and costing for multimorbidity should be developed to provide more comprehensive and comparable evidence for the costs of multimorbidity.

Healthcare resource utilization and costs associated with renal, bone and cardiovascular comorbidities among persons living with HIV compared to the general population in Quebec, Canada

There is limited understanding on healthcare utilization and costs of age-related comorbidities such as cardiovascular, bone and renal disease/disorder in people living with human immunodeficiency virus, so we compared comorbidity prevalence and associated healthcare utilization and costs. Through the Quebec health insurance database, people living with human immunodeficiency virus on antiretroviral therapy for ≥6 months from January 2006 to June 2012 were categorized by their comorbidity status using International Classification of Diseases (ICD)-9 codes, and controls without human immunodeficiency virus diagnosis or antiretroviral therapy use were age and gender matched. We compared healthcare utilization and costs. A total of 3,905 people living with human immunodeficiency virus and 11,715 control individuals were included. The mean age of people living with human immunodeficiency virus was 45.3 years and 77.3% were men. Prevalence of comorbidities was higher and occurred earlier in people living with human immunodeficiency virus and increased with older age regardless of human immunodeficiency virus status. Interestingly, bone comorbidity was high (37%) and 5-fold greater in people living with human immunodeficiency virus <20 years than the controls. Polypharmacy and comorbidity scores were greater in people living with human immunodeficiency virus than controls (p<0.01), as were cardiovascular, bone and renal comorbidities (40.3%, 26.0% and 5.5%, respectively; p<0.01). People living with human immunodeficiency virus had higher healthcare utilization and costs than controls largely due to longer hospital stays and prescriptions. Mean total healthcare cost/person/year for people living with human immunodeficiency virus was CAD$6,248 and was highest for those with renal disease (CAD$19,617). Comorbidities in people living with human immunodeficiency virus are more prevalent, occur earlier and incur a higher burden on the healthcare system; earlier screening and improved preventative and management strategies may reduce the burden to people living with human immunodeficiency virus and to the healthcare system.

A systematic review of engagement in care and health care utilization among older adults living with HIV and non-communicable diseases

It is critical to understand health care engagement and utilization among older persons living with HIV (OPWH) who may have greater burden for non-communicable diseases. Following the PRISMA guidelines, a systematic review using 5 electronic databases was conducted to appraise and synthesize the current literature on the relationship of non-communicable diseases on engagement in care and health care utilization among OPWH. Original studies published in English between 2009 and 2019 were included, yielding 16 relevant articles. Overall, having co-morbid non-communicable diseases was associated with a decreased likelihood of initiating and adhering to ART. Being on ART and viral suppression were associated with better engagement in non-communicable disease care. Findings also suggest that an increasing number of co-morbidities is associated with higher health care utilization and financial burden. This review underscores the need for preventing and managing co-morbidities to enhance engagement in HIV care and that health care practitioners need to ensure that OPWH are engaged in care for both HIV and their co-morbid conditions by providing coordinated and integrated care.

What are the drivers of high-cost HIV patients?

We aimed to identify "high-cost" patients with HIV (PWH) and determine drivers behind higher costs. All PWH at the Southern Alberta HIV Clinic, Canada, and active in 2017 were included. Sociodemographic, clinical, and healthcare utilization data were collected. The direct care costs from the payers' perspective including antiretroviral drugs (ARV), outpatient visits, and hospital admissions were determined for 2017. Patients' annual total costs were grouped into top 5% (i.e., high-cost), top 20%, middle 60%, and bottom 20%. High-cost patients were older, Caucasian or indigenous Canadian, and more likely acquired HIV from intravenous drug use (all p < 0.05). High-cost patients had lower nadir CD4, more comorbidities, missed more clinic appointments, had more ARV interruptions, and developed more ARV resistance (p < 0.01). The overall median cost of HIV care was US$14,064 [IQR US$13,121-US$17,883] (2017 Cdn$). High-cost patients had a median cost of US$29,902 [IQR US$27,229-US$37,891] and accounted for 14% of total costs and 84% of all inpatient costs. Hospitalizations constituted 58% of costs for high-cost patients. Although heterogeneous, high-cost patients have distinct sociodemographic and clinical characteristics driving their healthcare utilization. Addressing these social determinants of health and using novel ARV administration approaches may preserve health and save costs.

Physician network connections to specialists and HIV quality of care

OBJECTIVE

To estimate novel measures of generalist physicians' network connectedness to HIV specialists and their associations with two dimensions of HIV quality of care.

DATA SOURCES

Medicare and Medicaid claims and the American Medical Association Masterfile data on people living with HIV (PLWH) and the physicians providing their HIV care in California between 2007 and 2010.

STUDY DESIGN

I construct regional patient-sharing physician networks from the shared treatment of PLWH and calculate (a) measures of network connectedness to all physician types and (b) specialty-weighted measures to describe connectedness to HIV specialists. Two HIV quality of care outcomes are then evaluated: medication quality (prescribing antiretroviral drugs from at least two drug classes) and monitoring quality (at least two annual HIV virus monitoring scans). Linear probability models estimate the associations between network statistics and the two dimensions of HIV quality of care, and a policy simulation demonstrates the importance of these statistical relationships. These analyses include 16 124 PLWH, 3240 generalists, and 1031 HIV specialists.

DATA COLLECTION/EXTRACTION METHODS

PLWH are identified from claims for patients with any indication of HIV using an existing algorithm from the literature.

PRINCIPAL FINDINGS

Generalists' network connectedness to HIV specialists is positively related with their own HIV medication quality; one additional HIV specialist connection is associated with a 1.46 percentage point (SE 0.42, P < .01) increase in generalist's medication quality. Based on the estimated associations, a simulated policy that increases connectedness between generalists and HIV specialists reduces the annual rate of HIV infections by up to 6%, roughly 290 fewer infections per year. Only network connectedness to all physician types is associated with improved monitoring quality.

CONCLUSIONS

Network connectedness to HIV specialists is positively associated with generalists' HIV medication quality, which suggests that specialists provide clinical support through patient-sharing for complex treatment protocol.

Comorbidities in people living with HIV: An epidemiologic and economic analysis using a claims database in France

OBJECTIVES

As people living with HIV (PLHIV) age, the burden of non-HIV related comorbidities increases resulting in additional healthcare costs. The present study aimed to describe the profile, the prevalence and the incremental costs of non-HIV related comorbidities in PLHIV compared to non-HIV matched controls (1:2 ratio) in France.

METHODS

The French permanent sample of health beneficiaries (Echantillon généraliste de bénéficiaires [EGB]), a claims database representative of the national population, was used to assess comorbidities in PLHIV which were identified by the ICD-10 diagnosis codes of hospitalization, full healthcare coverage, and drug reimbursements between 2011 and 2014. The control group was matched by year of birth, gender, region of residence, and economic status. Total costs of outpatient care and hospitalizations were analysed from a societal perspective. A general linear model was used to assess the incremental cost per patient in PLHIV.

RESULTS

A total of 1,091 PLHIV and 2,181 matched controls were identified with a mean ± standard deviation age of 46.7 ± 11.5 years. The prevalence of alcohol abuse (5.8% vs 3.1%; p<0.001), chronic renal disease (1.2% vs 0.3%; p = 0.003), cardiovascular disease (7.4% vs 5.1%; p = 0.009), dyslipidaemia (22% vs 15.9%; p<0.001), hepatitis B (3.8% vs 0.1%; p<0.001) and hepatitis C (12.5% vs 0.6%; p<0.001) was significantly higher in PLHIV compared with non-HIV controls. Other comorbidities such as anaemia, malnutrition, psychiatric diseases, and neoplasms were also more prevalent in PLHIV. Hospitalizations were significantly increased in PLHIV compared to controls (33.2% vs 16%; p<0.001). Mean total cost was 6 times higher for PLHIV compared to controls and 4 times higher after excluding antiretroviral drugs (9,952€ vs. 2,593€; p<0.001). Higher costs per person in PLHIV were significantly associated to aging (42€ per patient/year), chronic cardiovascular disease (3,003€), hepatitis C (6,705€), metastatic carcinoma (6,880€) and moderate or severe liver disease (6,299€).

CONCLUSION

Our results demonstrated an increase in non-HIV related comorbidities among PLHIV compared to matched controls. This study contributes to raise awareness on the burden of chronic comorbidities.

Economic impact of comorbid diabetes and associated racial disparities in managing Medicare beneficiaries with human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS)

Clinical management of human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) is progressing to include chronic/metabolic complications, which may impose a significant economic burden on beneficiaries and Medicare. We assessed the national economic impact of comorbid Type-II Diabetes Mellitus (T2DM) on HIV/AIDS patients and potential raical disparities. This study was a cross-sectional study of Medicare database 2013-2017. Analytical sample included HIV/AIDS positive beneficiaries continuously enrolled in Part A/B. Total medical costs, prescription costs, inpatient costs, outpatient costs, out-of-pocket (OOP) costs, and Medicare costs were assessed from Medicare claims. Generalized linear models with log-link and gamma distribution were used to examine the impact of T2DM on different costs. A total of 2,509 eligible HIV/AIDS positive beneficiaries were identified of which 19.9% (n=498) had T2DM. After adjusting for covariates, T2DM beneficiaries had higher inpatient costs: 63.34% (95% CI: 42.73%-86.94%), outpatient costs: 50.26% (95% CI: 30.70%-72.75%), Medicare costs: 27.95% (95% CI: 13.81%-43.84%), OOP costs: 59.15% (95% CI: 40.02%-80.92%), and total medical costs: 27.83% (95% CI: 14.27%-43.00%) than non-T2DM beneficiaries. Incremental costs were higher among African Americans than Caucasians. Comorbid T2DM mposes a significant economic burden on HIV/AIDS patients and Medicare, which is higheramong African Americans.

The prevalence of comorbidities among adult people diagnosed with HIV infection in a tertiary care hospital in western Saudi Arabia

BACKGROUND

The life expectancy of people living with HIV is markedly increasing with the introduction of effective antiretroviral medications. However, these patients face an increased risk of developing multi-morbidities-especially with advanced age. This study was conducted to assess the prevalence of and risk factors associated with the occurrence of chronic comorbidities among patients diagnosed with HIV infection.

METHODS

A retrospective chart review was conducted on the medical records of patients with HIV diagnoses from 2000 to 2018. Data were collected on age, sex, date of diagnosis, associated co-morbidities, antiretroviral medications (ART) and status at time of data collection (alive or deceased). Only adult patients 18 years or above were studied.

RESULTS

A total of 130 confirmed HIV cases were included. Patient ages ranged from 23 to 86 years old (mean±SD 50.1±12.6). Almost half of the patients (48.5%) had at least one associated comorbidity. The most common chronic comorbidity was diabetes mellitus (15.4%), followed by dyslipidemia (10.8%), hypertension (10.8%) and lymphoma (10.0%). Comorbidity proportions increased with advanced patient age (p=0.047). Three or more comorbidities were reported in 40.7% of patients aged 60 years old or above. Using logistic regression analysis, only patients aged 50 years old or above were more likely to have at least one comorbidity (OR=7.59, 95%CI=2.25, 25.61).

CONCLUSIONS

The burden of chronic comorbidities among people diagnosed with HIV is high, especially among older age individuals, with an increasing number of comorbidities per patient. Proper counseling for HIV patients is highly recommended-not only for prevention of other infectious diseases (e.g., vaccination) but also for lifestyle modification and self-management for those with chronic conditions.

Ways of coping mediate the relationship between self-efficacy for managing HIV and acceptance of illness among people living with HIV

AIM

The purpose of this study was to examine the relationship between self-efficacy for managing HIV and acceptance of illness and to identify the potential mediation effect of active coping and passive coping on this relationship.

DESIGN

The study used a cross-sectional survey.

METHODS

A sample of 555 people living with HIV were recruited from September-December 2018 in the HIV clinic of a tertiary general hospital in Changsha, China. Survey data were collected through face-to-face interviews that included measures of sociodemographic and HIV-related clinical characteristics, Acceptance of Illness Scale, the Simplified Coping Style Questionnaire and the Self-efficacy for Managing Chronic Disease Scale. Step-by-step linear regression models combined with bootstrap testing were used to test the relationships when controlling for gender and HIV diagnosis duration.

RESULTS

Self-efficacy was positively related to acceptance of illness and this relationship was partially mediated by both active coping and passive coping. Acceptance of illness increased by 0.175 for every point increase in self-efficacy indirectly through active coping, while acceptance of illness decreased by 0.034 for every point increase in self-efficacy via passive coping.

CONCLUSION

The findings highlighted the importance of self-efficacy for managing HIV and ways of coping, especially active coping, for illness acceptance.

IMPACT

The findings suggested that interventions that improve confidence in managing HIV and active coping may enhance the illness acceptance of people living with HIV.

Home-Based Care, the Missing Link in Caring of Patients Living with HIV/AIDS and Their Family Members: A Narrative Review

Inconsistencies between the number of patients, qualified caregivers and lack of adequate services and resources in the healthcare systems for people living with HIV/AIDS have led to the idea of providing healthcare services for this vulnerable population at home. This study aimed to review the evidence related to the Home-Based Care (HBC) programs in the context of HIV. Literature search was carried out without publication date limit through English databases of Cochrane Library, PubMed, EBSCO, Scopus, Google Scholar, Science Direct, as well as Persian databases including Magiran and SID by the end of July 2019. Out of 1312 studies retrieved from the search of databases, six guidelines and 50 articles met the eligible criteria. The results showed that the overall purpose of HBC is to create hope through providing appropriate care to help the patients and their families to maintain their independence and have the best possible quality of life. The potential benefits of HBC could be discussed in three main categories: 1) patients, including patients’ satisfaction, quality of life, adherence to antiretroviral therapy, preventing mother-to-child transmission, as well as biochemical, social and psychological outcomes, 2) families, consisted of promotinon of family members’ participation, enhancement of family members’ awareness and provision of voluntary counseling and testing, and 3) healthcare systems, containing health care costs, workload at healthcare centers and time spent on services. Given the lessons learnt from the existing HBC programs, developing an alternative approach for providing healthcare at home in the context of HIV seems necessary and could be an agenda for action in health policy making in Iran.

Economic burden and mental health of primary caregivers of perinatally HIV infected adolescents from Kilifi, Kenya

BACKGROUND

Eighty per cent of perinatally HIV infected (PHI) adolescents live in sub-Saharan Africa (sSA), a setting also characterized by huge economic disparities. Caregiving is crucial to the management of chronic illness such as HIV/AIDS, but the economic costs and mental disorders borne by caregivers of PHI adolescents often go unnoticed. In this study, we evaluated economic costs, coping strategies and association between economic cost and mental health functioning of caregivers of perinatally HIV infected adolescents in Kilifi, Kenya.

METHODS

We used a cost of illness descriptive analysis approach to determine the economic burden and Patient Health Questionnaire (PHQ-9) to assess the caregivers' mental health. Cross-sectional data were collected from 121 primary caregivers of PHI adolescents in Kilifi using a structured cost questionnaire. Economic costs (direct and indirect costs) were measured from primary caregivers' perspective. We used descriptive statistics in reporting the results of this study.

RESULTS

Average monthly direct and indirect costs per primary caregiver was Ksh 2784.51 (USD 27.85). Key drivers of direct costs were transportation (66.5%) and medications (13.8%). Total monthly costs represented 28.8% of the reported caregiver monthly earnings. Majority of the caregivers borrowed resources to cope with high economic burden. About 10.7% of primary caregivers reported depressive symptoms. Caregivers with positive depression screen (PHQ-9 score ≥ 10) had high average monthly direct and indirect costs. However, this was not statistically different compared to costs incurred by caregivers who screened negative for depressive symptoms.

CONCLUSION

Our study indicates that HIV/AIDS is associated with a significant economic burden for caregivers of adolescents living with HIV. Results underscore the need for developing economic empowerment and social support programmes that reduce the economic burden of caring for perinatally infected adolescent. These efforts may improve the mental health and quality of life of caregivers of adolescents living with HIV.

Assessment and Management of HIV Distal Sensory Peripheral Neuropathy: Understanding the Symptoms

Distal sensory peripheral neuropathy (HIV-DSP) affects upwards of 50% of people living with HIV. Causing often debilitating symptoms of tingling, numbness and burning, HIV-DSP can result in disability, unemployment and low quality of life. Comorbidities further complicate nursing care, heightening risk of polypharmacy and symptom exacerbation. Therefore, a neurological sensory assessment, combined with the patient's self-report of symptoms, can help nurse practitioners visualize, quantify and understand symptoms. Common pharmacological interventions include antiepileptics, antidepressants, analgesics and medical marijuana. The complexity of care for individuals with HIV-DSP merits a comprehensive approach. Implications for practice include interdisciplinary management with neurologists, podiatrists, mental health providers, and nurse-led counseling inclusive of patient safety teaching.

Association between HIV infection and outcomes of care among medicare enrollees with breast cancer

BACKGROUND

To assess the interaction of breast cancer, HIV infection, Medicare disability status, cancer stage and its implications for outcomes, after accounting for competing risks among female, fee-for-service Medicare enrollees.

METHODS

We used data from Surveillance, Epidemiology and End Results (SEER) -Medicare (2000-2013). From primary female breast cancer cases diagnosed between 2001 and 2011, we identified those with HIV infection. We used Generalized Linear Model for phase-specific incremental cost of HIV, Cox regression for association between HIV and all-cause mortality, and Fine and Gray competing risk models to assess hazard of breast cancer-specific mortality by HIV status. We also studied this association for subgroups of cancer stage and disability status.

FINDINGS

Of 164,080 eligible cases of breast cancer, 176 had HIV infection. Compared to HIV-uninfected patients, HIV infected patients had 16% higher cost in initial phase, and 80% higher cost in interim stage of care, and at least two times higher mortality (all-cause and breast cancer-specific), after accounting for competing risk. Among disabled enrollees, HIV-infected patients had higher risk of all-cause and breast cancer-specific mortality, compared to HIV-uninfected patients.

INTERPRETATION

Female fee-for-service Medicare enrollees with breast cancer experience higher initial and interim phase cost and worse survival in the presence of HIV. This association was also significant among disabled Medicare enrollees. Medicare is the single largest source of federal financing for HIV care. Burden on Medicare will grow exponentially due to higher proportion of disabled among HIV-infected enrollees, longer survival among HIV- infected persons, increased HIV incidence in older adults, and increased age related risk of breast cancer. Future research can identify the pathways via which HIV infection affects cost and mortality, and develop integrated strategies for effective management of concomitant breast cancer and HIV and inform survivorship guidelines.

FUNDING

National Institute on Aging, National Institutes of Health, Grant # R21AG34870-1A1.

HIV and Aging: Reconsidering the Approach to Management of Comorbidities

Health care for older adults with human immunodeficiency virus can be highly complex, resource intensive, and carry a high administrative burden. Data from aging longitudinal cohorts and feedback from the human immunodeficiency virus community suggest that the current model is not meeting the needs of these older adults. We introduce the 6 Ms approach, which acknowledges the multicomplexity of older adults with human immunodeficiency virus, simplifies geriatric principles for non-geriatrics-trained providers, and minimizes extensive training and specialized screening tests or tools. Implementing novel approaches to care requires support at local/national levels.