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HIV Treatment News |
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Psychiatric/Psychological/ |
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Adherence to Treatment Kremer, Ironson, Schneiderman, and Hautzinger (2006) examined rationales offered by a diverse sample of 79 adults living with HIV for deciding to take or not to take antiretroviral therapy.3 Study participants learned their HIV-positive status an average of 11 years earlier. "Qualitative content analysis of semistructured interviews identified 10 criteria for the decision to take or not to take [antiretroviral therapy]: CD4/viral load counts (87%), quality of life (85%), knowledge/beliefs about resistance (66%), mind-body beliefs (65%), adverse effects of [antiretroviral therapy] (59%), easy-to-take regimen (58%), spirituality/worldview (58%), drug resistance (41%), experience of HIV/AIDS symptoms (39%), and preference for complementary/alternative medicine ([CAM;]17%)" (p. 335). In comparisons with the 73% of this sample that decided to take antiretrovirals, the 27% who decided not to take antiretroviral therapy
With regard to addressing the 10 decision-making criteria identified in this study, Kremer and colleagues offer the following suggestions:
Drawing on additional data from this same sample of adults living with HIV, Kremer and Ironson (2006) inquire if patients "tell their physicians whether they take antiretroviral treatment ... as prescribed and why" (p. 520). The investigators found that
Kremer and Ironson conclude that "[a] significant proportion of patients are not taking their medications as prescribed and are not telling their physicians. To facilitate the chance that patients communicate with their physicians, physicians need to ask and, while giving the patients medical information, create a non-judgmental, respectful atmosphere where patients feel comfortable sharing their personal view" (p. 520). The Summer 2006 Tool Box on "Emerging Methods for Motivating Effective Medication Practice" may be of help in this regard. As for taking medication as prescribed, Nilsson Schönnesson, Diamond, Ross, Williams, and Bratt (2006) monitored a convenience sample of 144 combination antiretroviral therapy recipients in Sweden over a 2-year period. In addition to "dose" adherence (i.e., taking the number of pills that have been prescribed), these investigators measured "schedule" adherence (i.e., following instructions related to the time interval between doses) and "dietary instructions" adherence (i.e., following instructions related to whether each medication is taken with or without food). Nilsson Schönnesson and colleagues found that
On this point, Johnson, Elliott, Neilands, Morin, and Chesney (2006) interviewed a convenience sample of 545 adults living with HIV to test "an explanatory model of HIV medication adherence using a social problem-solving (SPS) framework" (p. 355). Johnson and colleagues found that "[a] constructive problem-solving style was associated with a more optimal psychological adjustment and a greater likelihood of adhering to recommended regimens. A dysfunctional problem-solving style was associated with poorer psychological adjustment, which was associated with compromised adherence. Overall, ... [this] model accurately classified 97% of the cases as adherent or nonadherent, representing a vast improvement on other attempts to predict adherence" (pp. 360-361). According to the investigators, "SPS is an attractive model for studying adherence to HIV medications because problem-solving interventions can be effectively provided in individual ... and group formats ... . SPS interventions can also be adapted for use in brief interactions in primary care clinics ... and in ongoing telephone sessions with low-cost service providers ... . Problem-solving interventions appear to be particularly useful in promoting optimal adjustment, alleviating distress, and reducing relapse among persons with chronic health conditions ..." (p. 361). Johnson and colleagues further suggest that "SPS interventions can be modified for use with HIV+ populations to include problems specific to HIV that may contribute to psychological distress such as stigma, loss of social support, challenges of health care decision making, and fears over transmission of HIV to others. ... If effective, such interventions would offer clinicians a strategy for improving psychological well-being and medication adherence among individuals with chronic illness such as HIV" (p. 361). Rintamaki, Davis, Skripkauskas, Bennett, and Wolf (2006) evaluated the relationship between concern over the threat of HIV-related social stigma and self-reported treatment adherence among 204 people living with HIV in two different settings: one serving an urban/suburban population in Chicago, Illinois, and the other serving a rural population in Shreveport, Louisiana. The investigators report that "[n]early one third of the patients in ... [this] sample were less than 100% adherent to their HIV medication regimen within the past 4 days, and approximately 1 in 5 patients reported high concern for stigma related to their HIV status" (p. 364). Across the two locations, "[p]eople with high HIV stigma concerns were 2.5 times less likely to define and interpret the meaning of CD4 count correctly and 3.3 times more likely to be nonadherent to their medication regimen than those with low concerns. Concern over revealing HIV status was the only statistically significant, independent predictor of adherence in multivariate analysis" (p. 359). Consequently, Rintamaki and colleagues recommend that
Boarts, Sledjeski, Bogart, and Delahanty (2006) assessed 57 adults living with HIV (82% male, 44% African American) for PTSD and depression symptoms and took measures of antiretroviral adherence and HIV disease markers (CD4 cell count and viral load) at baseline and again approximately 3 months later. "Symptoms of PTSD and depression were common, with almost half of the participants likely meeting diagnostic criteria for at least one of the two disorders and 36.8% potentially meeting diagnostic criteria for comorbid PTSD and depression" (p. 259). Notably, this study
Similarly, the importance of addressing psychosocial needs in support of antiretroviral use and adherence cannot be overemphasized. Reif, Whetten, Lowe, and Ostermann (2006) investigated the relationship between various unmet psychosocial needs (including housing, emergency food/clothing, supplemental nutrition, support groups, counseling, legal assistance, and financial assistance/benefits) and antiretroviral use and adherence among 526 adults receiving HIV care in the southeastern United States.
Case managers often serve as a conduit to psychosocial services. Kushel et al. (2006) monitored a probability-based community sample of 280 homeless and marginally housed adults living with HIV in San Francisco over a 15-month period. The investigators found that "having [case management] was independently associated with improved adherence to [antiretroviral therapy] and improved CD4 ... cell count. ... [Case management] was not associated with changes in health services use; it was associated neither with an increased rate of receipt of primary care nor with reductions in emergency department use or hospitalizations" (pp. 239-240). Kushel and colleagues note that, "[w]ithout a randomized trial, ... [it] cannot [be] state[d] that there was a causal association between [case management] and improved outcomes" (p. 240), but suggest, on the basis of these findings, that "case management "may be an effective way to improve health outcomes among disenfranchised HIV-infected populations" (p. 241). In Seattle, Washington, Frick, Tapia, Grant, Novotny, and Kerzee (2006) conducted a retrospective cohort analysis involving 261 recipients of HIV primary care who were either administered the highly active antiretroviral therapy (HAART) Protocol (n = 109) or were part of a historical control group (n = 152).
In 12-month comparisons made between clients receiving the HAART Protocol and clients in the control group, the former continued on HAART longer than the latter (> 360 days vs. 210 days), with 55% continuing on HAART for the full year; only 43% of control group participants continued on HAART for the full year. Similarly, clients receiving the HAART Protocol experienced a greater reduction in viral load over the 12-month period than clients in the control group.
In short, according to these investigators, "[t]he effect of the intervention may be both to keep people on medication longer who would otherwise stop, and to help people at highest risk of disease progression to better adhere. ... [T]his study provides strong evidence that a multidisciplinary intervention can improve duration on therapy and reduce viral load" (pp. 520, 522). These findings may be contrasted with findings from a pilot study conducted in Houston, Texas. Visnegarwala et al. (2006) "evaluated a novel strategy of weekly delivery of medications (Directly Delivered Therapy: DDT) for six months using an outreach worker (ORW), among [antiretroviral-]naïve indigent women starting HAART and compared the 'during intervention' and 'post-intervention' outcomes to the health care team (a nurse educator, a case worker, a pharmacist and social worker/drug addictions counsellor) based approach termed Adherence Coordination Services (ACS) and the Standard of Care (SoC) historical referent group" (p. 332). The three groups had comparable baseline characteristics and were monitored over a period of 14 months. Visnegarwala and colleagues report that "[t]he proportion of women who achieved sustained virologic suppression in [the] 4-8 month period for DDT ...[,] ACS and SoC groups were 86% (18/21) ... 54% (6/11) ... and 36% (8/22) ...; and in the 10-14 month period were 80% (12/15) ... 54% (6/11) and 45%(10/22) ... . Retention rate in the DDT was 87%, and 92% of 307 ORW visits were kept, and post-intervention satisfaction was high" (p. 332). The investigators conclude that "[s]hort-term weekly delivery of medications using a community based liaison is a feasible, acceptable and a cost-effective strategy for improving both short-term and perhaps long-term adherence among women initiating their first HAART regimen" (p. 332). Similarly, Williams, Fennie, et al. (2006) conducted
Williams and colleagues found that a larger proportion of those receiving home visits demonstrated antiretroviral adherence greater than 90% when compared with those in usual care at each point of measurement beyond baseline. Although a statistically significant intervention effect on viral load or CD4 cell count was not noted, a statistically significant association between antiretroviral adherence greater than 90%, regardless of treatment arm, and an undetectable viral load over time was noted. The investigators point out, however, that "although a consistently larger proportion of subjects in the intervention group demonstrated greater than 90% adherence, most subjects in both groups failed to achieve this important milestone. Therefore, the intervention, although effective, was not universally so. In future studies, it will be important to determine if there are specific individuals for whom this type of intervention is more or less effective and which specific elements of the intervention exert the most powerful effect on adherence behavior" (p. 319). On this same note, Wagner et al. (2006) conducted a three-arm, randomized, controlled trial involving 199 antiretroviral therapy recipients at five California HIV primary care clinics. The investigators developed a cognitive-behavioral adherence intervention
Study participants were assigned either to this five-session intervention, to a five-session intervention that substituted mental rehearsal for the placebo practice trial, or to usual care. The investigators found that either of the
Wagner and colleagues conclude that
The last word on the topic of antiretroviral adherence (for this issue of the newsletter, at least) goes to Rueda et al. (2006) of the highly respected Cochrane Collaboration, which conducted a systematic review of research literature published between January 1996 and May 2005 on the effectiveness of patient education and support to improve adherence to HAART.
Coping, Social Support, & Quality of Life Drawing on findings from their multi-year study of adolescent children of parents living with (or having died from) AIDS who had been randomly assigned to either a time-limited, family-based, cognitive-behavioral, skill-focused intervention or standard care, Rotheram-Borus, Stein, and Lester (2006) assessed predictors of adolescent adjustment 3 and 6 years after this intervention was originally implemented. The investigators neatly summarize the results as follows:
Rotheram-Borus and colleagues conclude that this time-limited intervention "demonstrated both direct and indirect benefits on adolescent adjustment that persist into early adulthood, especially in decreasing substance use over time. Youth who lose a parent to HIV illness are at greater risk for adjustment problems as they enter young adulthood, whereas the protective effect of positive parent-child bonds on youth emotional distress, sexual risk-taking, and future expectations suggests the potential role of interventions that enhance developmentally appropriate parent-child interactions" (p. 181). In a novel exploration of the persistence of benefits associated with this intervention, Rotheram-Borus, Lester, et al. (2006) assessed the intervention's intergenerational impact on the grandchildren of parents living with (or having died from) AIDS. Both the parents and their daughters "demonstrated gains over 6 years when randomized to a coping skills intervention compared with a control condition" (p. 622). Similarly, the adjustment of the grandchildren was compared across conditions. The investigators found that the grandchildren in families that had received the intervention
In their first longitudinal analysis of data emerging from a randomized, controlled trial of a group coping intervention for AIDS-related bereavement 5, Hansen et al. (2006) examined data drawn from a diverse sample of 267 men and women living with HIV who had lost one or more loved ones over the preceding 2-year period. These individuals were randomly assigned to one of two conditions. The intervention condition consisted of a 12-week bereavement coping group intervention conducted in 90-minute sessions and tailored to gender, ethnicity, and sexual orientation. "The group ... format combined semi-structured cognitive-behavioral and support group approaches. ... Specific strategies for dealing with problems of grief included: (a) establishing a sense of control and predictability; (b) anger expression and management; (c) resolution of guilt; (d) promoting self-mastery through empowerment; and (e) development of new relationships" (pp. 618-619). The comparison condition consisted of individual psychotherapy and psychiatric services on demand (the community standard-of-care). Measures of grief, psychiatric distress, quality of life, and coping were administered at baseline, 2 weeks following the intervention, and in 4-, 8-, and 12-month follow-up assessments.
Indeed, Hansen and colleagues found that "[c]oping strategies directly impacted all outcome variables for both study conditions. Additionally, the coping intervention moderated the relationship between avoidant coping and the longitudinal course of grief and psychiatric distress, resulting in greater reductions in grief and distress for intervention participants after accounting for avoidant coping strategies" (p. 609). The investigators conclude that "cognitive-behavioral group interventions focused on coping enhancement can decrease avoidant coping strategies, thus accelerating the adaptation to grief for AIDS-bereaved people living with HIV, a group at increased risk for complicated grief" (p. 630). Lastly, Bormann et al. (2006) "examined the efficacy of a psycho-spiritual intervention of mantram repetition – a word or phrase with spiritual associations repeated silently throughout the day – on psychological distress (intrusive thoughts, stress, anxiety, anger, depression), quality of life enjoyment and satisfaction, and existential spiritual well-being in HIV-infected adults" (p. 359). The investigators randomly assigned 93 study participants to either a mantram (n = 46) or attention control group (n = 47). Measurements were taken at baseline, week 5, week 10 (at the conclusion of the intervention), and week 22. Over this period, "the mantram group improved significantly more than the control group in reducing trait-anger and increasing spiritual faith and spiritual connectedness. Actual mantram practice measured by wrist counters was inversely associated with non-HIV related intrusive thoughts and positively associated with quality of life, total existential spiritual well-being, meaning/peace, and spiritual faith" (p. 359). Bormann and colleagues conclude that "a mantram group intervention and actual mantram practice each make unique contributions for managing psychological distress and enhancing existential spiritual well-being in adults living with HIV/AIDS" (p. 359). – Compiled by Abraham Feingold, Psy.D. 1 Behavioral format: "The extent to which one has communicated or insisted on safer sex with a sexual partner" (p. 371). Intentional format: "The extent to which one plans on communicating about or insisting on safer sex with a sexual partner" (p. 371). Self-efficacy format: "One's perceived ability to communicate about or insist on safer sex with a sexual partner" (p. 371). 2 Two additional papers emerging from this study are summarized under "Coping Strategies, Social Support, & Quality of Life," below. 3 A recent review on the topic of treatment readiness (Nordqvist, Södergård, Tully, Sönnerborg, & Lindblad, 2006) is highlighted in this issue's Tool Box on "Resources." 5 Cross-sectional studies involving bereaved, HIV-positive men and women that were previously conducted by this research group may be found in the Summer 2003, Summer 2004, Summer 2005, and Fall 2005 issues of mental health AIDS.
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