Sergio Rueda

Systematic Review of HIV Transmission between Heterosexual Serodiscordant Couples where the HIV-Positive Partner Is Fully Suppressed on Antiretroviral Therapy

Background The risk of sexual HIV transmission in serodiscordant couples when the HIV-positive partner has full virologic suppression on combination antiretroviral therapy (cART) is debated. This study aims to systematically review observational studies and randomized controlled trials (RCTs), evaluating rates of sexual HIV transmission between heterosexual serodiscordant couples when the HIV-positive partner has full suppression on cART. Methods and Findings We searched major bibliographic databases to November 2012 for relevant observational studies and RCTs without language restrictions. Conference proceedings, key journals and bibliographies were also searched. Studies reporting HIV transmission rates, cART histories and viral loads of the HIV-positive partners were included. Two reviewers extracted methodologic characteristics and outcomes. Of 20,252 citations, 3 studies met all eligibility criteria with confirmed full virologic suppression in the HIV-positive partner. We included 3 additional studies (2 cohort studies, 1 RCT) that did not confirm viral suppression in the HIV-positive partner at transmission in a secondary meta-analysis. Methodologic quality was reasonable. The rate of transmission in the 3 studies confirming virologic suppression was 0 per 100 person-years (95% CI = 0–0.05), with low heterogeneity (I2 = 0%). When we included the 3 studies that did not confirm virologic suppression, the rate of transmission was 0.14 per 100 person-years (95%CI = 0.04–0.31) (I2 = 0%). In a sensitivity analysis including all 6 studies, the rate of transmission was 0 per 100 person-years (95%CI = 0–0.01) after omitting all transmissions with known detectable or unconfirmed viral loads, as full suppression in these cases was unlikely. Limitations included lack of data on same-sex couples, type of sexual intercourse (vaginal vs. anal), direction of HIV transmission, exact viral load at the time of transmission, sexually transmitted infections (STI) rates, and extent of condom use. Conclusions Our findings suggest minimal risk of sexual HIV transmission for heterosexual serodiscordant couples when the HIV-positive partner has full viral suppression on cART with caveats regarding information on sexual intercourse type, STIs, and condom use. These findings have implications when counseling heterosexual serodiscordant couples on sexual and reproductive health. More research is needed to explore HIV transmission risk between same-sex couples.

Employment status is associated with both physical and mental health quality of life in people living with HIV

Abstract To evaluate the relationship between employment status and health-related quality of life (HRQOL) in HIV/AIDS. A total of 361 participants provided baseline data in the context of an ongoing cohort study examining the natural history of neurobehavioral functioning and its effects on HRQOL. We administered tests and collected laboratory data to determine demographic status, HIV disease markers, psychosocial symptom burden, neurocognitive function and HRQOL (MOS-HIV). We performed regression analyses to evaluate the contribution of employment status to the physical and mental health components of quality of life (QOL). Multivariate analyses showed that employment status was strongly related to better physical and mental health QOL after controlling for potential confounders. We found, however, that employment status had a greater impact on physical health than mental health QOL [physical health (β = 6.8, 95% CI 4.6 to 9.1) and mental health QOL (β = 3.3, 95% CI 0.93 to 5.7)]. The effect of employment for physical health QOL was stronger than that observed for ethnicity, social support, or having an AIDS diagnosis and was comparable to that observed with having many HIV-related symptoms. This cross-sectional study suggests that there may be physical and mental health benefits associated with obtaining or keeping employment, or more likely that both selection and causation mechanisms comprise an interactional and reinforcing process.

Association of returning to work with better health in working-aged adults: a systematic review.

OBJECTIVES We systematically reviewed the literature on the impact of returning to work on health among working-aged adults. METHODS We searched 6 electronic databases in 2005. We selected longitudinal studies that documented a transition from unemployment to employment and included a comparison group. Two reviewers independently appraised the retrieved literature for potential relevance and methodological quality. RESULTS Eighteen studies met our inclusion criteria, including 1 randomized controlled trial. Fifteen studies revealed a beneficial effect of returning to work on health, either demonstrating a significant improvement in health after reemployment or a significant decline in health attributed to continued unemployment. We also found evidence for health selection, suggesting that poor health interferes with peoples ability to go back to work. Some evidence suggested that earlier reemployment may be associated with better health. CONCLUSIONS Beneficial health effects of returning to work have been documented in a variety of populations, times, and settings. Return-to-work programs may improve not only financial situations but also health.

Direct and indirect effects of perceived social support on health-related quality of life in persons living with HIV/AIDS

Abstract Research has established a link between perceived social support and health-related quality of life (HRQOL) among persons living with HIV/AIDS. However, little is known about the ways through which social support influences HRQOL. This study examined the direct and indirect effects of perceived social support on physical and mental HRQOL in a sample of 602 adults living with HIV in Ontario, Canada. Participants completed the Medical Outcomes Study-HIV (MOS-HIV) health survey, the MOS-HIV Social Support Scale (MOS-HIV-SSS), and the Center for Epidemiological Studies Depression-Revised scale. Data on demographic and clinical characteristics were also collected. The direct and indirect effects of social support on the two MOS-HIV HRQOL summary measures, that is, physical health summary (PHS) and mental health summary (MHS), were estimated in multiple linear regression analyses. Perceived social support had significant direct effects on PHS (B=0.04, p<0.01) and MHS (B=0.05, p<0.01). It also had significant indirect effect on both PHS (B=0.04, p<0.01) and MHS (B=0.11, p<0.01), mediated by depressive symptoms. Interventions that enhance social support have the potential to contribute to better HRQOL either directly or indirectly by decreasing the deleterious effect of depressive symptoms on HRQOL.

Gender and Ethnicity Differences in HIV-related Stigma Experienced by People Living with HIV in Ontario, Canada

This study aimed to understand gender and ethnicity differences in HIV-related stigma experienced by 1026 HIV-positive individuals living in Ontario, Canada that were enrolled in the OHTN Cohort Study. Total and subscale HIV-related stigma scores were measured using the revised HIV-related Stigma Scale. Correlates of total stigma scores were assessed in univariate and multivariate linear regression. Women had significantly higher total and subscale stigma scores than men (total, median = 56.0 vs. 48.0, p<0.0001). Among men and women, Black individuals had the highest, Aboriginal and Asian/Latin-American/Unspecified people intermediate, and White individuals the lowest total stigma scores. The gender-ethnicity interaction term was significant in multivariate analysis: Black women and Asian/Latin-American/Unspecified men reported the highest HIV-related stigma scores. Gender and ethnicity differences in HIV-related stigma were identified in our cohort. Findings suggest differing approaches may be required to address HIV-related stigma based on gender and ethnicity; and such strategies should challenge racist and sexist stereotypes.

Content validity for dementia of three generic preference based health related quality of life instruments

A semi-structured interview was conducted with dementia patients and their caregivers in order to explore which aspects of quality of life were perceived as relevant and important. These aspects of quality of life were compared with the content of three generic utility-based quality of life instruments: European Quality of Life Instrument, Health Utilities Index, and Quality of Well-Being (QWB) Scale. Twenty patients with mild dementia and 20 caregiver volunteers provided narrative data derived from interviews that were analyzed using a modified Grounded Theory method of analysis. Essential attributes of dementia quality of life identified by the respondents were missing in the three utility-based quality of life instruments selected for the study. Patients provided a wider range of attributes than the instruments including some attributes not described by caregivers. Of the three utility-based measures, the QWB scale included the largest number of quality of life attributes but still missed many. Compared to the respondent generated attributes all three utility-based quality of life instruments have important shortcomings in content validity.

Examining the associations between HIV-related stigma and health outcomes in people living with HIV/AIDS: a series of meta-analyses

Objective To conduct a systematic review and series of meta-analyses on the association between HIV-related stigma and health among people living with HIV. Data sources A structured search was conducted on 6 electronic databases for journal articles reporting associations between HIV-related stigma and health-related outcomes published between 1996 and 2013. Study eligibility criteria Controlled studies, cohort studies, case-control studies and cross-sectional studies in people living with HIV were considered for inclusion. Outcome measures Mental health (depressive symptoms, emotional and mental distress, anxiety), quality of life, physical health, social support, adherence to antiretroviral therapy, access to and usage of health/social services and risk behaviours. Results 64 studies were included in our meta-analyses. We found significant associations between HIV-related stigma and higher rates of depression, lower social support and lower levels of adherence to antiretroviral medications and access to and usage of health and social services. Weaker relationships were observed between HIV-related stigma and anxiety, quality of life, physical health, emotional and mental distress and sexual risk practices. While risk of bias assessments revealed overall good quality related to how HIV stigma and health outcomes were measured on the included studies, high risk of bias among individual studies was observed in terms of appropriate control for potential confounders. Additional research should focus on elucidating the mechanisms behind the negative relationship between stigma and health to better inform interventions to reduce the impact of stigma on the health and well-being of people with HIV. Conclusions This systematic review and series of meta-analyses support the notion that HIV-related stigma has a detrimental impact on a variety of health-related outcomes in people with HIV. This review can inform the development of multifaceted, intersectoral interventions to reduce the impact of HIV-related stigma on the health and well-being of people living with HIV.

Evaluation of brief screening tools for neurocognitive impairment in HIV/AIDS: a systematic review of the literature

Objective(s):To systematically review literature on brief screening tools used to detect and differentiate between normal cognition and neurocognitive impairment and HIV-associated neurocognitive disorders (HANDs) in adult populations of persons with HIV. Design:A formal systematic review. Methods:We searched six electronic databases in 2011 and contacted experts to identify relevant studies published through May 2012. We selected empirical studies that focused on evaluating brief screening tools (<20 min) for neurocognitive impairment in persons with HIV. Two reviewers independently reviewed retrieved literature for potential relevance and methodological quality. Meta-analyses were completed on screening tools that had sufficient data. Results:Fifty-one studies met inclusion criteria; we focused on 31 studies that compared brief screening tools with reference tests. Within these 31 studies, 39 tools were evaluated and 67% used a comprehensive neuropsychological battery as a reference. The majority of these studies evaluated HIV-associated dementia (HAD). Meta-analyses demonstrated that the HIV Dementia Scale (HDS) has poor pooled sensitivity (0.48) and the International HIV Dementia Scale (IHDS) has moderate pooled sensitivity (0.62) in detecting a range of cognitive impairment. Five newer screening tools had relatively good sensitivities (>0.70); however, none of the tools differentiated HAND conditions well enough to suggest broader use. There were significant methodological shortcomings noted in most studies. Conclusion:HDS and IHDS perform well to screen for HAD but poorly for milder HAND conditions. Further investigation, with improved methodology, is required to understand the utility of newer screening tools for HAND; further tools may need to be developed for milder HAND conditions.

Stigma, HIV and health: a qualitative synthesis

BackgroundHIV-related stigma continues to negatively impact the health and well-being of people living with HIV, with deleterious effects on their care, treatment and quality of life. A growing body of qualitative research has documented the relationship between HIV-related stigma and health. This review aims to synthesize qualitative evidence that explored the intersections of stigma and health for people with HIV.MethodsA thematic summary was conducted that was guided by the qualitative metasummary technique developed by Sandelowski and Barraso. Literature searches yielded 8,622 references of which 55 qualitative studies were identified that illustrated HIV-related stigma in the context of health.ResultsThe metasummary classified qualitative findings into three overarching categories: conceptualizing stigma which identified key dimensions of HIV-related stigma; experiencing stigma which highlighted experiences of stigma in the health context, and managing stigma which described ways in which stigma is avoided or addressed. To better illustrate these connections, the qualitative literature was summarized into the following themes: stigma within health care settings, the role of stigma in caring for one’s health, and strategies to address HIV-related stigma in the health context. A number of health care practices were identified – some rooted in institutional practices, others shaped by personal perceptions held by practitioners – that could be stigmatizing or discriminatory towards people with HIV. There existed interconnections between enacted stigma and felt stigma that influenced health care utilization, treatment adherence, and overall health and well-being of people with HIV. Intersectional stigma also emerged as instrumental in the stigma experiences of people living with HIV. A number of strategies to address stigma were identified including social support, education, self-efficacy, resilience activities, and advocacy.ConclusionThis review of the qualitative evidence indicates that HIV-related stigma within health contexts is a broad social phenomenon that manifests within multiple social spheres, including health care environments. Findings from this review indicate that future stigma research should consider the social structures and societal practices – within and outside of health care environments – that perpetuate and reinforce stigma and discrimination towards people with HIV.

Mastery and Coping Moderate the Negative Effect of Acute and Chronic Stressors on Mental Health-Related Quality of Life in HIV

Acute and chronic life stressors have a detrimental effect on the health of people living with HIV. Psychosocial resources such as mastery, coping, and social support may play a critical role in moderating the negative effects of stressors on health-related quality of life. A total of 758 participants provided baseline enrolment data on demographics (age, gender, ethnicity, sexual orientation, education, employment, income), clinical variables (CD4 counts, viral load, AIDS-defining condition, time since HIV diagnosis), psychosocial resources (mastery, coping, social support), life stressors (National Population Health Survey [NPHS] Stress Questionnaire), and health-related quality of life (SF-36). We performed hierarchical multivariate regression analyses to evaluate the potential moderating effects of psychosocial resources on the relationship between stressors and health-related quality of life. The top three stressors reported by participants were trying to take on too many things at once (51%), not having enough money to buy the things they needed (51%), and having something happen during childhood that scared them so much that they thought about it years later (42%). Life stressors were significantly and inversely associated with both physical and mental health-related quality of life. Mastery and maladaptive coping had significant moderating effects on mental health but not on physical health. These results suggest that developing interventions that improve mastery and reduce maladaptive coping may minimize the negative impact of life stressors on the mental health of people with HIV. They also highlight that it is important for clinicians to be mindful of the impact of life stressors on the health of patients living with HIV.