Treatment Adherence Self-efficacy Research Articles

Associations between perceived discrimination experiences, treatment adherence self-efficacy, and depressive symptoms among people living with HIV in the Southern United States

ABSTRACT This study examined associations between perceived discrimination, treatment adherence self-efficacy, and depressive symptoms among people living with HIV (PLHIV) in the Southern United States. Cross-sectional survey data were collected from 402 PLHIV who self-reported on interpersonal discrimination experiences based on HIV status, sexuality, gender, income, and living condition. Participants also reported on adherence self-efficacy and depressive symptoms. We employed K-means clustering to identify groups based on discrimination experiences, and logistic regressions to examine group differences on adherence self-efficacy and depressive symptoms. Results suggested three groups: a cluster with high perceived discrimination across all identities/conditions (n = 41; 11%; Cluster 1); a cluster with high perceived discrimination based on HIV status, income, and living condition (n = 49; 13%; Cluster 2); and a cluster with low perceived discrimination across all identities/conditions (n = 288; 76%; Cluster 3). Compared to Cluster 3, Cluster 1 and 2 had 2.22 times (p = .037) and 3.98 times (p<.001) greater odds of reporting depressive symptoms. Compared to Cluster 3, Cluster 2 had 3.40 times (p = .003) greater odds of reporting lower adherence self-efficacy. Findings demonstrate the need for individual-level support for PLHIV with discrimination histories, and broader efforts to end the stigma, discrimination, and marginalization of PLHIV based on HIV status and other characteristics.

A differentiated digital intervention to improve antiretroviral therapy adherence among men who have sex with men living with HIV in China: a randomized controlled trial

BackgroundAntiretroviral therapy (ART) adherence is still suboptimal among some key populations, highlighting the need for innovative tailored strategies. This randomized controlled trial (RCT) aimed to evaluate the effect of a differentiated digital intervention on ART adherence among men who have sex with men (MSM) living with HIV in China.MethodsThe two-armed parallel RCT was conducted at one HIV clinic in Jinan of China from October 19, 2020, to June 31, 2021. Men were referred by health providers to join the study and then choose one of three digital strategies—text message, only instant message, or instant message plus social media. They were assigned in a 1:1 ratio to the intervention arm or control arm using block randomization, and inside each arm, there were three groups depending on the type of delivering the message. The groups were divided according to participants’ preferred digital strategies. The intervention arm received ART medication messages, medication reminders, peer education, and involved in online discussion. The control arm received messages on health behavior and nutrition. The primary outcome was self-reported optimal ART adherence, defined as not missing any doses and not having any delayed doses within a one-month period. Secondary outcomes included CD4 T cell counts, viral suppression, HIV treatment adherence self-efficacy, and quality of life. Intention-to-treat analysis with generalized linear mixed models was used to evaluate the intervention’s effect.ResultsA total of 576 participants were enrolled, including 288 participants assigned in the intervention arm and 288 assigned in the control arm. Most were ≤ 40 years old (79.9%) and initiated ART ≤ 3 years (60.4%). After intervention, the proportion of participants achieving optimal ART adherence in the intervention arm was higher than in the control arm (82.9% vs 71.1%). The differentiated digital intervention significantly improved ART adherence (RR = 1.74, 95%CI 1.21–2.50). Subgroup analysis showed one-to-one instant message-based intervention significantly improved ART adherence (RR = 2.40, 95% CI 1.39–4.17).ConclusionsThe differentiated digital intervention improved ART adherence among MSM living with HIV in China, which could be integrated into people living with HIV (PLWH) management and further promoted in areas where PLWH can access text messaging and instant messaging services.Trial registrationChiCTR2000041282. Retrospectively registered on 23 December 2020.

The Relationship Between HIV Pre-exposure Prophylaxis Stigma and Treatment Adherence Among Current HIV Pre-exposure Prophylaxis Users in the Southeastern U.S.

Despite efficacy in HIV prevention, Pre-exposure Prophylaxis (PrEP) is underutilized in the US, especially among populations at highest risk. PrEP-related stigma may play a role. We developed measures of PrEP-related stigma dimensions and PrEP adherence. We administered them to current PrEP users. We hypothesized that PrEP-related stigma would negatively impact PrEP adherence. Questionnaire measures were developed using data from previous qualitative work and existing validated HIV-related stigma measures. The resultant survey was administered to current PrEP users from two Birmingham, Alabama PrEP clinics. Plasma tenofovir disoproxil fumarate levels were collected to measure PrEP adherence. Exploratory factor analyses were performed to determine the factor structure of each PrEP-related stigma dimension (internalized, perceived, experienced, anticipated, disclosure concerns). Separate binary logistic (or linear) regressions were performed to assess associations between PrEP-related stigma dimensions and adherence (treatment adherence self-efficacy, self-reported adherence, and plasma tenofovir levels), adjusting for education, race, and time on PrEP. In 2018, 100 participants completed the survey, with 91 identifying as male and 66 as white. Only internalized stigma was associated with lower self-reported PrEP adherence. Exploratory mediation analyses suggested that the association between all stigma dimensions and self-reported PrEP adherence is mediated by PrEP adherence self-efficacy. No associations were found between any PrEP-related stigma measures and plasma tenofovir levels. Internalized PrEP stigma may reduce PrEP adherence, possibly by reducing PrEP adherence self-efficacy among experienced PrEP users. Further investigation of how stigma dimensions affect PrEP adherence in populations at risk for HIV may shed light on drivers of PrEP underutilization.

Psychometric Evaluation and Predictive Validity of an Adapted Adherence Self-Efficacy Scale for PrEP.

Adherence to and sustainment of HIV pre-exposure prophylaxis (PrEP) are critical to its effectiveness. Adherence self-efficacy, i.e., confidence in one's ability to adhere to a particular medication, is a key psychological determinant of health behavior that strongly predicts HIV treatment adherence but has been understudied in PrEP research. This paper describes the psychometric evaluation and validation of the PrEP Adherence Self-Efficacy Scale (PrEP-ASES), adapted from the previously validated HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES). Data are drawn from two studies conducted at a community health center, one focused on gay and bisexual cisgender men and the other on transgender women. Factor analyses support a one-factor score (eigenvalue = 6.78) that explained 75.3% of the variance, with good test-retest reliability (rs > 0.40). In both studies, higher PrEP-ASES scores were associated with PrEP uptake, adherence, and sustainment. Findings support the utility of the PrEP-ASES in research and suggest the importance of addressing self-efficacy in PrEP programs and services.

HIV Treatment Adherence Self-efficacy Scale for Pakistani HIV/AIDS patients: Translation and psychometric evaluation

AimThis study translated HIV-Adherence Self-efficacy scale (HIV-ASES) and evaluated its psychometric properties in Pakistani HIV/AIDS patients. BackgroundHigh level of adherence to highly active antiretroviral therapy (HAART) is required in management of HIV/AIDS; and it is significantly associated with self-efficacy for adherence to treatment. Understanding and enhancing adherence self-efficacy is a huge challenge for care management staff including nurses, counselors and doctors due to paucity of research and availability of valid and reliable instruments in Urdu language to assess HIV treatment adherence self-efficacy. MethodsBrislin's translation method was used to translate HIV-ASES in Urdu. A cross-sectional survey consisting of a demographic questionnaire and Urdu HIV-ASES was administered on 300 HIV/AIDS patients seeking treatment in a government hospital. SPSS-20 and Mplus 8.1 were used for statistical analysis. ResultsSemantic, content, conceptual and technical equivalence between source and target versions were established. The final Confirmatory Factor Analysis model had 0.95 CFI and 0.06 RMSEA (CI = 0.04–0.08). Cronbach's alpha was 0.89 for full scale, 0.81 for integration, and 0.88 for perseverance subscales. ConclusionUrdu HIV-ASES is a valid and a reliable instrument for assessing HIV treatment adherence self-efficacy for further research, intervention and management of HIV/AIDS.

Quality of life and HIV adherence self-efficacy in adolescents and young adults living with perinatal HIV in Chiang Mai, Thailand

ABSTRACT We assessed the quality of life and HIV adherence self-efficacy of adolescents and young adults (AYA) with perinatal HIV infection (PHIV). This cross-sectional study was conducted in Chiang Mai, Thailand. AYA-PHIV aged between 15 and 25 years were enrolled, who all were initiated on antiretroviral treatment as children. The World Health Organization-quality of life-BREF questionnaire and the HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES) were administered. A total of 111 AYA-PHIV were included, including 52 (47%) females. Their median age was 20.2 ± 2.6 years. The overall QOL was rated as favorable (good or very good) by 59.4% of AYA-PHIV. The highest score was seen in the social relationships domain followed by the environmental health domain. Males had a significantly lower score in the psychological health domain than females (p = 0.018). Simple linear regression revealed a negative association between male sex, physical, and psychological health domain scores. The overall mean HIV–ASES score was 7.79 ± 1.96 out of 10, with a trend toward lower scores in males (p = 0.062), and a weak positive correlation with QOL. Our study documented worse QOL and lower HIV adherence self-efficacy in male AYA-PHIV. The findings call for the design of tailored male-focused interventions.

The role of self-efficacy in HIV treatment adherence and its interaction with psychosocial factors among HIV positive adolescents in transition to adult care in Kenya

ABSTRACT Adolescents and young adults (15–24 yrs.) have poorer HIV clinical outcomes than adults. Despite this, there is minimal data on individual-level factors such as self-efficacy towards antiretroviral adherence among perinatally infected adolescents living with HIV in sub-Saharan Africa. Our study examined the interaction between antiretroviral treatment adherence self-efficacy and other psychosocial factors among adolescents receiving care in Nairobi, Kenya. We enrolled perinatally infected Adolescent Living with HIV (ALWHIV) 16–19 yrs. who were accessing care routinely at the HIV clinic. We measured self-reported ART adherence (7-day recall) and defined optimal adherence as >95%, and conducted a regression analysis to identify independently associated factors. Mediation analysis explored interactions between the psychosocial variables. We enrolled 82 ALWHIV median age 17 (IQR 16,18) who had been on ART for a median age of 11 yrs. (IQR 7,13). Sixty-four per cent (52) of the ALWHIV reported optimal adherence of >95%, and 15% reported missing doses for three or more months. After controlling for the other covariates, self-esteem, high viral load and an adherence level > 95% were significantly associated with adherence self-efficacy. Self-esteem was significantly associated with adherence self-efficacy and social support (p < 0.001 and p = 0.001), respectively. The paramed test indicated that the association between self-efficacy and adherence was mediated by self-esteem with a total effect of OR 6.93 (bootstrap 95% CI 1.99–24.14). Adherence self-efficacy was also mediated by self-esteem in developing adherence behavior. Interventions focused on increasing adherence among ALWHIV should include self-esteem building components.Key words : Adolescents, Adherence self -efficacy, Transition , perinatal,

Validity and Reliability of the Indonesia Version of HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES) in Men who have Sex with Men in West Sumatra

The aim this study was to translate the HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES) and evaluate its validity and reliability in Men Who Have Sex With Men Seropositive HIV in West Sumatera Indonesia. The original HIV-ASES was translated from English into Indonesian. Validity and reliability testing is done by reliability scale analysis technique. The question item validity is seen from the magnitude of r-table value with r-count and reliability seen through Cronbach's alpha coefficiency. The results of this study show the HIV_ASES in the context of Indonesian all items of valid and reliable.

Exploring beliefs on diabetes treatment adherence among Dutch type 2 diabetes patients and healthcare providers

ObjectiveDespite well-known beneficial effects, adherence to core elements of diabetes treatment is suboptimal. This study, conducted in the Netherlands, aimed to explore if and how treatment adherence success factors are applied in diabetes consultations, and to explore salient personal beliefs about type 2 diabetes treatment including both healthy lifestyle adaptations and pharmacotherapy. MethodsA qualitative study using semi-structured interviews among nine Dutch healthcare providers predominantly involved in diabetes management and 19 Dutch type 2 diabetes patients. Data was systematically analysed through deductive coding analysis using Nvivo. ResultsMost patients visited their consultations unprepared. Patients did not or vaguely experience goal-setting in consultations, whereas healthcare providers indicated to set treatment goals. Shared-decision making was applied, however patients were rather passive collaborators as mostly healthcare providers were in charge of making treatment decisions. Despite suboptimal treatment adherence, many advantages and few disadvantages of treatment strategies were reported. Adherence self-efficacy was lower in situations outside daily routine. ConclusionTreatment adherence success factors are not optimally applied, and in particular treatment adherence self-efficacy could be improved. Practice implicationsThe application of treatment adherence success factors in consultations could be improved, and personal beliefs should be addressed to improve treatment adherence and optimize counselling.

Prevalence and nutritional impact of small intestinal bacterial overgrowth (SIBO) and exocrine pancreatic insufficiency (EPI) in gastrectomized patients

Despite well-known beneficial effects, adherence to core elements of diabetes treatment is suboptimal. This study, conducted in the Netherlands, aimed to explore if and how treatment adherence success factors are applied in diabetes consultations, and to explore salient personal beliefs about type 2 diabetes treatment including both healthy lifestyle adaptations and pharmacotherapy.A qualitative study using semi-structured interviews among nine Dutch healthcare providers predominantly involved in diabetes management and 19 Dutch type 2 diabetes patients. Data was systematically analysed through deductive coding analysis using Nvivo.Most patients visited their consultations unprepared. Patients did not or vaguely experience goal-setting in consultations, whereas healthcare providers indicated to set treatment goals. Shared-decision making was applied, however patients were rather passive collaborators as mostly healthcare providers were in charge of making treatment decisions. Despite suboptimal treatment adherence, many advantages and few disadvantages of treatment strategies were reported. Adherence self-efficacy was lower in situations outside daily routine.Treatment adherence success factors are not optimally applied, and in particular treatment adherence self-efficacy could be improved.The application of treatment adherence success factors in consultations could be improved, and personal beliefs should be addressed to improve treatment adherence and optimize counselling.

Reliability and validity of the Chinese version of the HIV Treatment Adherence Self-Efficacy Scale in mainland China.

The aim of this study was to translate the HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES) and evaluate its reliability and validity in people living with HIV (PLWHIV) in mainland China. The original HIV-ASES was translated from English into Chinese and adapted for cultural context according to cross-cultural adaptation guidelines. A cross-sectional survey investigating 1742 PLWHIV receiving antiretroviral treatment was conducted. Exploratory factor analysis with varimax rotation confirmed the presence of two factors with an accumulated contribution rate of 58.357%. Furthermore, confirmatory factor analysis revealed the model's goodness-of-fit index. The comparative fit index was greater than 0.9 and the overall efficacy of the model was satisfactory. The Cronbach α coefficient of the questionnaire was 0.876 (95% CI: 0.868-0.885), and the correlation coefficient of each item and the total was 0.536-0.660 ( P < 0.01). The Chinese version of the HIV-ASES has high reliability and validity; however, the individual item requires some adjustment.

Risk Factors for Non-Adherence to cART in Immigrants with HIV Living in the Netherlands: Results from the ROtterdam ADherence (ROAD) Project.

In the Netherlands, immigrant people living with HIV (PLWH) have poorer psychological and treatment outcomes than Dutch PLWH. This cross-sectional field study examined risk factors for non-adherence to combination Antiretroviral Therapy (cART) among immigrant PLWH. First and second generation immigrant PLWH attending outpatient clinics at two HIV-treatment centers in Rotterdam were selected for this study. Socio-demographic and clinical characteristics for all eligible participants were collected from an existing database. Trained interviewers subsequently completed questionnaires together with consenting participants (n = 352) to gather additional data on socio-demographic characteristics, psychosocial variables, and self-reported adherence to cART. Univariable and multivariable logistic regression analyses were conducted among 301 participants who had used cART ≥6 months prior to inclusion. Independent risk factors for self-reported non-adherence were (I) not having attended formal education or only primary school (OR = 3.25; 95% CI: 1.28–8.26, versus University), (II) experiencing low levels of social support (OR = 2.56; 95% CI: 1.37–4.82), and (III) reporting low treatment adherence self-efficacy (OR = 2.99; 95% CI: 1.59–5.64). Additionally, HIV-RNA >50 copies/ml and internalized HIV-related stigma were marginally associated (P<0.10) with non-adherence (OR = 2.53; 95% CI: 0.91–7.06 and OR = 1.82; 95% CI: 0.97–3.43). The findings that low educational attainment, lack of social support, and low treatment adherence self-efficacy are associated with non-adherence point to the need for tailored supportive interventions. Establishing contact with peer immigrant PLWH who serve as role models might be a successful intervention for this specific population.

Social support and moment-to-moment changes in treatment self-efficacy in men living with HIV: Psychosocial moderators and clinical outcomes.

For people living with HIV, treatment adherence self-efficacy is an important predictor of treatment adherence and, therefore, of clinical outcomes. Using experience sampling method (ESM), this study aimed to examine: (1) the within-person association between moment-to-moment changes in social support and HIV treatment self-efficacy; (2) the moderators of this within-person association; (3) the concordance between questionnaire and ESM measurement of treatment self-efficacy; and (4) the utility of each approach (ESM and questionnaire) in predicting adherence to medication, adherence to clinic visits, CD4 counts, and viral load. Men living with HIV (N = 109) responded to the same set of ESM questions 3 times a day for 7 days via a smart phone given to them for the study. They also completed cross-sectional questionnaires and their clinic data was extracted from medical records to examine predictors and consequences of state and trait treatment self-efficacy. In within-person hierarchical linear modeling (HLM) analyses, receipt of recent social support predicted higher current ESM treatment self-efficacy. This association was stronger for individuals reporting higher avoidance coping with HIV. The correlation between ESM and questionnaire measures of treatment self-efficacy was r = .37. ESM measure of average treatment self-efficacy predicted medication adherence, visit adherence, CD4 counts, and viral load, while questionnaire-based self-efficacy did not predict these outcomes. Interventions aimed at improving treatment adherence may target social support processes, which may improve treatment self-efficacy and adherence. (PsycINFO Database Record

Simple, illustrated medicines information improves ARV knowledge and patient self-efficacy in limited literacy South African HIV patients

Few studies have investigated antiretroviral (ARV) knowledge and self-efficacy in limited literacy patients. Using a randomized controlled study design, we investigated the influence of a simple pre-tested patient information leaflet (PIL) containing both text and illustrations on HIV- and ARV-related knowledge and on self-efficacy over six months in a limited literacy African population. The recruited patients were randomly allocated to either control (standard care) or intervention group (standard care plus illustrated PIL). HIV and medicines-related knowledge was evaluated with a 22-question test at baseline, one, three, and six months. Self-efficacy was assessed using a modified version of the HIV Treatment Adherence Self-Efficacy Scale. Two-thirds of the patients were female, mean age was 39.0 ± 9.6 years and mean education was 7.3 ± 2.8 years. Patients who received the PIL showed a significant knowledge increase over the six-month period (62.0–94.4%), with improvement at each subsequent interview whereas the control group showed no improvement. At baseline, side effect knowledge was the lowest (50–56%) but increased in the intervention group to 92%. Similarly, other medicine-related knowledge at baseline (57–67%) improved significantly (93%) and was sustained over six months. Cohen's d values post-baseline ranged between 1.36 and 2.18, indicating a large intervention effect. Self-efficacy improved significantly over six months in intervention but not control patients. At baseline, patients with ≤3 years of education had lower knowledge and self-efficacy but this was not observed post-intervention, which we attribute to the PIL mitigating the effect of limited education. Knowledge and self-efficacy were significantly correlated in the intervention group. In conclusion, a low-cost intervention of a well-designed, pre-tested, simple, illustrated PIL significantly increased both ARV knowledge and self-efficacy in HIV patients with limited education.

Focus on Increasing Treatment Self‐Efficacy to Improve Human Immunodeficiency Virus Treatment Adherence

Human immunodeficiency virus (HIV) treatment self-efficacy is the confidence held by an individual in her or his ability to follow treatment recommendations, including specific HIV care such as initiating and adhering to antiretroviral therapy (ART). The purpose of this study was to explore the potential mediating role of treatment adherence self-efficacy in the relationships between Social Cognitive Theory constructs and self- reported ART adherence. Cross-sectional and descriptive. The study was conducted between 2009 and 2011 and included 1,414 participants who lived in the United States or Puerto Rico and were taking antiretroviral medications. Social cognitive constructs were tested specifically: behaviors (three adherence measures each consisting of one item about adherence at 3-day and 30-day along with the adherence rating scale), cognitive or personal factors (the Center for Epidemiology Studies Depression Scale to assess for depressive symptoms, the 12-Item Short Form Health Survey (SF-12) to assess physical functioning, one item about physical condition, one item about comorbidity), environmental influences (the Social Capital Scale, one item about social support), and treatment self-efficacy (HIV Adherence Self-Efficacy Scale). Analysis included descriptive statistics and regression. The average participant was 47 years old, male, and a racial or ethnic minority, had an education of high school or less, had barely adequate or totally inadequate income, did not work, had health insurance, and was living with HIV/acquired immunodeficiency syndrome for 15 years. The model provided support for adherence self-efficacy as a robust predictor of ART adherence behavior, serving a partial mediating role between environmental influences and cognitive or personal factors. Although other factors such as depressive symptoms and lack of social capital impact adherence to ART, nurses can focus on increasing treatment self-efficacy through diverse interactional strategies using principles of adult learning and strategies to improve health literacy. Adherence to ART reduces the viral load thereby decreasing morbidity and mortality and risk of transmission to uninfected persons. Nurses need to use a variety of strategies to increase treatment self-efficacy.

Bridging the Digital Divide in HIV Care

Persons living with HIV (PLWH) need practical tools to self-manage their condition. We conducted a proof-of-concept study among PLWH to assess whether patients could learn to use a personal health record (PHR) on a hand-held device (iPod Touch) to manage their condition. We began individual trainings and later adapted this to group training. We assessed usability, acceptability and also effects on self-efficacy for treatment adherence using the HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES). Nine PLWH participated in the individual training and 29 participated in the group sessions. The participants were largely middle aged, low-income and of racial/ethnic minorities. The sessions were well attended and participants fully engaged in tasks and shared learning. Most participants stated they intended to use the PHR and reported improved self-efficacy in treatment adherence (P = .05) particularly on the integration of treatment adherence into one's routine (P < .02). Training PLWH in use of a handheld PHR shows promise.

Preliminary support for the construct of health care empowerment in the context of treatment for human immunodeficiency virus

BackgroundThe Model of Health Care Empowerment (HCE) defines HCE as the process and state of being engaged, informed, collaborative, committed, and tolerant of uncertainty regarding health care. We examined the hypothesized antecedents and clinical outcomes of this model using data from ongoing human immunodeficiency virus (HIV)-related research. The purpose of this paper is to explore whether a new measure of HCE offers direction for understanding patient engagement in HIV medical care. Using data from two ongoing trials of social and behavioral aspects of HIV treatment, we examined preliminary support for hypothesized clinical outcomes and antecedents of HCE in the context of HIV treatment.MethodsThis was a cross-sectional analysis of 12-month data from study 1 (a longitudinal cohort study of male couples in which one or both partners are HIV-seropositive and taking HIV medications) and 6-month data from study 2, a randomized controlled trial of HIV-seropositive persons not on antiretroviral therapy at baseline despite meeting guidelines for treatment. From studies 1 and 2, 254 and 148 participants were included, respectively. Hypothesized antecedents included cultural/social/environmental factors (demographics, HIV-related stigma), personal resources (social problem-solving, treatment knowledge and beliefs, treatment decision-making, shared decision-making, decisional balance, assertive communication, trust in providers, personal knowledge by provider, social support), and intrapersonal factors (depressive symptoms, positive/negative affect, and perceived stress). Hypothesized clinical outcomes of HCE included primary care appointment attendance, antiretroviral therapy use, adherence self-efficacy, medication adherence, CD4+ cell count, and HIV viral load.ResultsAlthough there was no association observed between HCE and HIV viral load and CD4+ cell count, there were significant positive associations of HCE scores with likelihood of reporting a recent primary care visit, greater treatment adherence self-efficacy, and higher adherence to antiretroviral therapy. Hypothesized antecedents of HCE included higher beliefs in the necessity of treatment and positive provider relationships.

The Role of Self-Efficacy in HIV Treatment Adherence: Validation of the HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES)

Adherence to HIV treatment, including adherence to antiretroviral (ART) medication regimens, is paramount in the management of HIV. Self-efficacy for treatment adherence has been identified as an important correlate of medication adherence in the treatment of HIV and other medical conditions. This paper describes the validation of the HIV Treatment Adherence Self-Efficacy Scale (HIV-ASES) with two samples of HIV+ adults on ART. Factor analyses support subscales measuring Adherence Integration (eigenvalue=6.12) and Adherence Perseverance (eigenvalue=1.16), accounting for 61% of the variance in scale items. The HIV-ASES demonstrates robust internal consistency (rhos>.90) and 3-month (rs>.70) and 15-month (rs>.40) test-retest reliability. Concurrent validity analyses revealed relationships with psychosocial measures, ART adherence, clinical status, and healthcare utilization. Findings support the use of the HIV-ASES and provide guidance for further investigation of adherence self-efficacy in the context of treatment for HIV and other diseases.