Psychiatric diagnosis and antiretroviral adherence among adolescent Medicaid beneficiaries diagnosed with human immunodeficiency virus/acquired immunodeficiency syndrome

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.

Internalizing Mental Disorders and Accelerated Cellular Aging Among Perinatally HIV-Infected Youth in Uganda

Introduction: Internalizing mental disorders (IMDs) in HIV+ children and adolescents are associated with impaired quality of life and non-adherence to anti-retroviral treatment. Telomere length is a biomarker of cellular aging, and shorter telomere length has been associated with IMDs. However, the nature of this association has yet to be elucidated.

Objective: We determined the longitudinal association between IMDs and relative telomere length (rTL) and the influence of chronic stress among Ugandan perinatally HIV-infected youth (PHIY).

Methods: IMDs (depressive disorders, anxiety disorders, and post-traumatic stress disorder) and IMDs were assessed using the locally adapted Child and Adolescent Symptom Inventory-5. In 368 PHIY with any IMD and 368 age- and sex-matched PHIY controls without any psychiatric disorder, rTL was assessed using quantitative polymerase chain reaction. Hierarchical cluster analysis was used to generate the three chronic stress classes (mild, moderate, and severe). t-tests were used to assess the difference between baseline and 12 month rTL and the mean difference in rTL between cases and controls both at baseline and at 12 months. Linear regression analysis was used to model the effects of chronic stress on the association between IMDs and rTL, controlling for age and sex.

Results: We observed longer rTL among cases of IMDs compared with controls (p < 0.001). We also observed a statistically significant reduction in rTL between baseline and 12 months in the combined sample of cases and controls (p < 0.001). The same statistical difference was observed when cases and controls were individually analyzed (p < 0.001). We found no significant difference in rTL between cases and controls at 12 months (p = 0.117). We found no significant influence of chronic stress on the association between IMDs and rTL at both baseline and 12 months.

Conclusion: rTL is longer among cases of IMDs compared with age- and sex-matched controls. We observed a significant attrition in rTL over 12 months, which seems to be driven by the presence of any IMDs. There is a need for future longitudinal and experimental studies to understand the mechanisms driving our findings.

Psychiatric Disorders, Antiretroviral Medication Adherence and Viremia in a Cohort of Perinatally HIV-Infected Adolescents and Young Adults

BACKGROUND

Perinatally HIV-infected (PHIV+) adolescents and young adults (AYA) are at risk for suboptimal antiretroviral therapy (ART) adherence and mental health and substance use problems that, in HIV-infected adults, predict nonadherence. Studies on the relationship between psychiatric and substance use disorders (SUD) and adherence among PHIV+ AYA are limited, but may be important for informing evidence-based interventions to promote adherence.

METHODS

Data were analyzed from 3 annual follow-up interviews (FU2-FU4, N = 179) in a longitudinal study of PHIV+ AYA. Psychiatric disorders (anxiety, disruptive behavior, mood and SUD) were assessed with the Diagnostic Interview Schedule for Children. Adherence was self-reported missed ART doses within the past week. Viral load (VL) results were abstracted from medical charts. Multiple logistic regression analyzed cross-sectional associations between psychiatric disorders and (1) missed ART dose and (2) VL > 1000 copies/mL. Multiple linear regression assessed associations between psychiatric disorders and proportion of VL values >1000 copies/mL over time.

RESULTS

At FU2, 53% of PHIV+ AYA had any psychiatric disorder, 35% missed an ART dose in the past week and 47% had a VL > 1000 copies/mL. At FU2, behavioral disorders were associated with missed dose (P = 0.009) and VL > 1000 (P = 0.019), and mood disorders were associated with missed dose (P = 0.041). At FU4, behavioral disorders were associated with missed dose (P = 0.009). Behavioral disorders (P = 0.041), SUD (P = 0.016) and any disorder (P = 0.008) at FU2 were associated with higher proportion of VLs >1000 across FU2-FU4.

CONCLUSIONS

Addressing psychiatric disorder and SUD among PHIV+ AYA may improve ART adherence outcomes in this population. Targeted interventions should be developed and tested.

Antiretroviral Therapy: Racial Disparities among Publicly Insured Californians with HIV

Only 43% of Americans with HIV are virally suppressed; the rate is lower for African Americans, even among insured populations. This study uses 2010 Medicare and Medicaid data for HIV-positive Californians to examine how antiretroviral treatment (ART) relates to patient and provider characteristics. Logistic regressions isolated the effect of race/ethnicity on receipt of ART. Over 90% of the full sample received any ART. Nearly 80% of ART users received a recommended combination for at least half the year; half had a recommended combination for 90% of the year. Lacking evaluation and management visits, or seeing only providers with low HIV patient volume lowered the odds of receiving ART. Controlling for other factors, African Americans remained less likely to receive ART at all, or to be covered for 90% of the year with a recommended regimen. The observed racial treatment differentials may lead to important health disparities.

Psychiatric symptoms and antiretroviral nonadherence in US youth with perinatal HIV: a longitudinal study

OBJECTIVES

The relationship of specific psychiatric conditions to adherence has not been examined in longitudinal studies of youth with perinatal HIV infection (PHIV). We examined associations between psychiatric conditions and antiretroviral nonadherence over 2 years.

DESIGN

Longitudinal study in 294 PHIV youth, 6-17 years old, in the United States and Puerto Rico.

METHODS

We annually assessed three nonadherence outcomes: missed above 5% of doses in the past 3 days, missed a dose within the past month, and unsuppressed viral load (>400 copies/ml). We fit multivariable logistic models for nonadherence using Generalized Estimating Equations, and evaluated associations of psychiatric conditions (attention deficit hyperactivity disorder, disruptive behavior, depression, anxiety) at entry with incident nonadherence using multivariable logistic regression.

RESULTS

Nonadherence prevalence at study entry was 14% (3-day recall), 32% (past month nonadherence), and 38% (unsuppressed viral load), remaining similar over time. At entry, 38% met symptom cut-off criteria for at least one psychiatric condition. Greater odds of 3-day recall nonadherence were observed at week 96 for those with depression [adjusted odds ratio (aOR) 4.14, 95% confidence interval (CI) 1.11-15.42] or disruptive behavior (aOR 3.36, 95% CI 1.02-11.10], but not at entry. Those with vs. without attention deficit hyperactivity disorder had elevated odds of unsuppressed viral load at weeks 48 (aOR 2.46, 95% CI 1.27-4.78) and 96 (aOR 2.35, 95% CI 1.01-5.45), but not at entry. Among 232 youth adherent at entry, 16% reported incident 3-day recall nonadherence. Disruptive behavior conditions at entry were associated with incident 3-day recall nonadherence (aOR 3.01, 95% CI 1.24-7.31).

CONCLUSION

In PHIV youth, comprehensive adherence interventions that address psychiatric conditions throughout the transition to adult care are needed.

Disparities in mental health care among HIV-infected youth

OBJECTIVE

Untreated psychiatric illness is detrimental to the health and well-being of HIV-infected youth. This study examines the relationships between social and demographic variables and the rates of psychiatric treatment among HIV-infected youth.

METHODS

Analyses are from a cross-sectional survey of 1706 HIV-infected youth (13-26 years) in care at treatment sites or affiliates of the Adolescent Medicine Trials Network for HIV/AIDS Interventions from 2010 to 2011. Among the youth who reported recent significant mental health symptoms, comparisons on demographic variables (including race, ethnicity, language spoken, level of education, sexual orientation, and household income) were made.

RESULTS

Psychiatrically symptomatic black youth were significantly less likely than symptomatic nonblack peers to receive mental health care (37.4% versus 48.6%) and psychiatric medications (19.3% versus 26.9%).

CONCLUSION

Care providers should be alerted to the potential disparities in mental health care treatment that exist for black youth living with HIV.

HIV risk and prevention among men who have sex with men (MSM) in peri-urban townships in Cape Town, South Africa

Current guidelines on HIV prevention for MSM emphasise the need for 'combination prevention' based on context-specific understandings of HIV risk. MSM in South Africa are a population with a high risk of HIV infection, however there is little research available on the drivers of this risk. In the context of a focus on combination prevention, this paper argues that effective HIV prevention for MSM in South Africa requires an understanding of the factors at multiple 'distances' from individuals that contribute to HIV risk. Based on qualitative research with MSM in Cape Town, South Africa, we situate HIV risk using a socio-ecological framework and identify factors at distal, proximal, and personal, levels that contribute to MSM's high risk of HIV infection. By understanding the interactions and linkages between risk environments and the risk situations in which HIV is transmitted, HIV prevention programmes will be more effectively able to address the multiple drivers of HIV risk in this population.

Approaches to identifying appropriate medication adherence assessments for HIV infected individuals with comorbid bipolar disorder

Assessing medication adherence in already difficult-to-treat HIV-infected subpopulations presents a unique challenge. The objective of this study was to compare different approaches to assessing medication adherence: (1) electronic medication monitoring, (2) standardized self-report questionnaire, and (3) self-report visual analogue scale, and to determine whether antiretroviral therapy (ART) adherence measures differed for HIV-infected persons with bipolar disorder (HIV+ /BD+) as compared to HIV-infected persons without bipolar disorder (HIV+ /BD-). ART adherence was assessed for 74 HIV-positive participants using the Medication Event Monitoring System (MEMS), AIDS Clinical Trials Group (ACTG) adherence questionnaire, and visual analogue scale (VAS). Participants were classified as adherent or nonadherent on each measure by previously validated cutscores. Correlations and logistic regressions were used to examine associations between adherence measures and demographic and clinical variables. In the HIV+ /BD- group, significant correlations existed between each self-report measure and the MEMS. Males comprised 81% of the study population. Participants averaged 44 years of age and 13 years of education. No significant correlations were found among adherence measures in the HIV+ /BD+ group. Among participants reporting adherence on either self-report measure but classified as nonadherent based on MEMS, 94% had a diagnosis of bipolar disorder. Bipolar disorder was a significant predictor of adherence classification discordance among self-report measures. Our findings suggest that it remains difficult to assess ART adherence among HIV-positive individuals with bipolar disorder. Combined approaches of self-report and objective measures may be the best way to estimate adherence, and may provide the best basis for interventions designed to improve adherence in difficult-to-treat populations.

Longitudinal study of emerging mental health concerns in youth perinatally infected with HIV and peer comparisons

OBJECTIVE

Cross-sectional research indicates high rates of mental health concerns among youth with perinatal HIV infection (PHIV), but few studies have examined emerging psychiatric symptoms over time.

METHODS

Youth with PHIV and peer comparisons who were HIV-exposed but uninfected or living in households with HIV-infected family members (HIV-affected) and primary caregivers participated in a prospective, multisite, longitudinal cohort study. Groups were compared for differences in the incidence of emerging psychiatric symptoms during 2 years of follow-up and for differences in psychotropic drug therapy. Logistic regression models were used to evaluate the association of emerging symptoms with HIV status and psychosocial risk factors.

RESULTS

Of 573 youth with study entry assessments, 92% attended at least 1 annual follow-up visit (PHIV: 296; comparisons: 229). A substantial percentage of youth who did not meet symptom criteria for a psychiatric disorder at study entry did so during follow-up (PHIV = 36%; comparisons = 42%). In addition, those who met criteria at study entry often met criteria during follow-up (PHIV = 41%; comparisons = 43%). Asymptomatic youth with PHIV were significantly more likely to receive psychotropic medication during follow-up than comparisons. Youth with greater HIV disease severity (entry CD4% <25% vs 25% or more) had higher probability of depression symptoms (19% vs 8%, respectively).

CONCLUSIONS

Many youth in families affected by HIV are at risk for development of psychiatric symptoms.

Use of Medicaid data to explore community characteristics associated with HIV prevalence among beneficiaries with schizophrenia

OBJECTIVES

People with severe mental illness (SMI) may be at increased risk for several adverse health conditions, including HIV/AIDS. This disproportionate disease burden has been studied primarily at the individual rather than community level, in part due to the rarity of data sources linking individual information on medical and mental health characteristics with community-level data. We demonstrated the potential of Medicaid data to address this gap.

METHODS

We analyzed data on Medicaid beneficiaries with schizophrenia from eight states that account for 66% of cumulative AIDS cases nationally.

RESULTS

Across 44 metropolitan statistical areas (MSAs), the treated prevalence of HIV among adult Medicaid beneficiaries diagnosed with schizophrenia was 1.56% (standard deviation = 1.31%). To explore possible causes of variation, we linked claims files with a range of MSA social and contextual variables including local AIDS prevalence rates, area-based economic measures, crime rates, substance abuse treatment resources, and estimates of injection drug users (IDUs) and HIV infection among IDUs, which strongly predicted community infection rates among people with schizophrenia.

CONCLUSIONS

Effective strategies for HIV prevention among people with SMI may include targeting prevention efforts to areas where risk is greatest; examining social network links between IDU and SMI groups; and implementing harm reduction, drug treatment, and other interventions to reduce HIV spread among IDUs. Our findings also suggest the need for research on HIV among people with SMI that examines geographical variation and demonstrates the potential use of health-care claims data to provide epidemiologic insights into small-area variations and trends in physical health among those with SMI.

Medication adherence in children and adolescents with HIV infection: associations with behavioral impairment

The impact of behavioral functioning on medication adherence in children with perinatally acquired HIV infection is not well-explored, but has important implications for intervention. This report addresses the relationship between behavioral functioning and child self-report or caregiver report of medication adherence among children and adolescents enrolled in Pediatric AIDS Clinical Trials Group Protocol 219C (conducted 2000-2007). A total of 1134 participants, aged 3-17 years, received a behavioral evaluation and adherence assessment. Complete adherence was defined as taking 100% of prescribed antiretroviral medications during three days preceding the study visit. Multivariable logistic regression models were used to evaluate associations between adherence and behavioral functioning, adjusting for potential confounders, including demographic, psychosocial, and health factors. Children demonstrated higher than expected rates of behavioral impairment (≈7% expected with T > 65) in the areas of conduct problems (14%, z = 7.0, p < 0.001), learning problems (22%, z = 12.2, p < 0.001), somatic complaints (22%, z = 12.6, p < 0.001), impulsivity-hyperactivity (20%, z = 11.1, p < 0.001), and hyperactivity (19%, z = 10.6, p < 0.001). Children with behavioral impairment in one or more areas had significantly increased odds of nonadherence [adjusted odds ratio (aOR) = 1.49, p = 0.04]. The odds of nonadherence were significantly higher for those with conduct problems and general hyperactivity (aOR = 2.03, p = 0.005 and aOR = 1.68, p = 0.02, respectively). Psychosocial and health factors, such as recent stressful life events and higher HIV RNA levels, were also associated with nonadherence. Knowledge of behavioral, health, and social influences affecting the child and family should guide the development of appropriate, evidence-based interventions for medication adherence.

Psychiatric illness, access and adherence to HAART: a brief review of recent findings and implications for care

This review outlines research since 2006 addressing psychiatric illness and/or co-occurring psychiatric illness and substance abuse as it relates to HAART access and adherence. Highlighted here are effective or promising interventions, or models of care, designed to enhance adherence among HIV-infected individuals with mental illness. Overall, we found that recent studies reinforce earlier findings that co-occurring substance abuse and psychiatric illness are associated with HAART nonadherence. Studies of depression/anxiety disorders among HIV patients reviewed here show that while depression is related to poorer medication adherence, treatment for depression can lead to increased HAART adherence. New studies also suggest that HIV patients with psychiatric diagnoses can effectively maintain HAART adherence with close monitoring by providers. While there are still very few adherence interventions among HIV patients with co-occurring mental illness and substance abuse, promising interventions include cognitive behavioral therapy and integration of mental health services with HIV primary care.