Level of Adherence and Associated Factors Among HIV-Infected Patients on Antiretroviral Therapy in Northern Ethiopia: Retrospective Analysis

Comparison of dried blood spot (DBS) and plasma HIV-1 viral load measurements using Roche COBAS AmpliPrep/COBAS TaqMan assay, Northwest Ethiopia

INTRODUCTION

Quantitative determination of HIV-1 viral load measurements using plasma samples has been widely applicable for prompt monitoring at baseline and following initiation of highly active antiretroviral therapy (HAART). However, improper mixing of whole blood with anticoagulants during plasma sample processing, as well as limited access to specialized health facilities might hinder HIV diagnosis services. Considering its higher stability and increased accessibility in areas with poor laboratory settings, the dried blood spot (DBS) sample might be a suitable alternative approach for periodic monitoring of HIV-1 viral load measurements. Thus, in this study, we aimed to compare the quantitative determination of HIV-1 RNA levels using plasma and DBS samples among people living with HIV in Northwest Ethiopia.

METHODS

An institutional-based analytical cross-sectional study was conducted from March to July 2020 using 48 paired plasma and DBS samples among people living with HIV at the HIV Treatment Center, Northwest Ethiopia. A total of four milliliters of venous blood was collected to harvest plasma and for DBS sample preparation. The HIV-1 RNA extraction, amplification, and quantification were performed using the Roche COBAS AmpliPrep/COBAS TaqMan version 2.0 assay. Data were managed and analyzed using SPSS version 26 software. Mean HIV-1 viral load measurements as well as the associations between plasma and DBS sample measurements were computed using a paired sample t-test and Pearson's correlation statistical tests, respectively. In addition, the level of agreement and the presence of proportional bias between sample measurements were performed using the Bland-Altman plot and linear regression models, respectively. A p-value of ≤ 0.05 with a 95% confidence interval was considered statistically significant.

RESULTS

Among 48 people living with HIV, more than half (64.6%) of them were females. The minimum and maximum age of the study participants was 12 and 58 years, respectively. The mean difference with standard deviation (SD) of sample measurements (DBS minus plasma) HIV-1 viral load was 0.66 ± 0.70 log copies/mL. In the current study, a strong association with a significant linear correlation (r = 0.796) (p < 0.001) was obtained from Pearson's correlation analysis among HIV-1 viral load measurements between DBS and plasma samples. Moreover, the Bland-Altman plot also depicted a high level of agreement between the sample measurements.

CONCLUSIONS

The findings of the current study suggested that DBS samples could be considered as an alternative approach for periodic monitoring of HIV-1 viral loads to scale-up the HIV diagnosis and treatment coverage, particularly in areas with limited laboratory settings due to minimal invasive blood collection, higher stability at room temperature or ease of transportation, and decentralized sample collection approaches.

Suboptimal adherence to antiretroviral treatment and its predictors among people living with HIV in the era of test and treat

Despite the success in scaling-up antiretroviral therapy (ART) services in Ethiopia, suboptimal adherence to ART has been an existing challenge. There is a dearth of evidence on the status of adherence to ART following the adoption of test and treat strategy in Ethiopia. This study aimed to investigate on the magnitude of suboptimal adherence and its predictors among patients taking ART. A multicenter prospective cohort study was conducted among adults aged 15 years and above who started ART between March and June 2019 in 39 health facilities (HFs) in Ethiopia. Measurements on sociodemographic, behavioral, and clinical characteristics were taken at baseline and 6- and 12-months following ART initiation. Multivariable logistic regression model using generalized estimating equations was used to identify factors associated with suboptimal adherence. In total, 1229 individuals who started ART were included in the study. The proportion of suboptimal adherence was 8.0% and 7.9% at 6- and 12-months, respectively. Younger age (adjusted odds ratio (AOR) = 2.28 (95% confidence interval (CI) 1.10, 4.74)), being single (AOR = 2.08 (95% CI 1.25, 3.48)), and being a farmer (AOR = 3.21 (95% CI 1.84, 5.61)) were associated with increased risk for suboptimal adherence. Similarly, alcohol intake (AOR = 3.31 (95% CI 2.14, 5.11)), missing clinic appointment (AOR = 5.73 (95% CI 3.76, 8.75)), having opportunistic infections (AOR = 2.86 (95% CI 1.67, 4.88)) and presence of comorbidities (AOR = 3.51 (95% CI 1.89, 6.53)) were associated with higher risk for suboptimal adherence. We observed lower rate of suboptimal adherence to ART following the implementation of test and treat strategy in Ethiopia. Various sociodemographic, clinical, and behavioral factors were found to be independent predictors of suboptimal adherence. The findings highlight the importance of person-centered adherence support based on individual characteristics.

Comparative evaluation of plasma and serum HIV-1 viral load measurements among HIV positive individuals, Northwest Ethiopia: Analytical cross-sectional study

INTRODUCTION

Plasma HIV viral load tests have been widely used in clinical practice to monitor treatment success or failure. Inappropriate mixing with anticoagulants and inaccessibility of plasma samples in certain clinical services (such as antenatal care services) might hinder HIV diagnosis and treatment services. Considering that serum has higher stability and availability in prenatal care services, periodic monitoring of serum HIV viral load might be an alternative approach. Thus, this study aimed to evaluate the plasma and serum HIV-1 viral load measurements among HIV-positive individuals in Northwest Ethiopia.

METHODS

An institution-based analytical cross-sectional study was conducted on 74 paired plasma and serum samples from May to August 2020 at the HIV Treatment Center, Northwest Ethiopia. Four milliliters of paired venous blood were collected to harvest plasma and serum. HIV-1 RNA was extracted and quantified using the Roche COBAS AmpliPrep/COBAS TaqMan assay. Data were analyzed using SPSS version 20. Paired sample t-tests and Pearson's correlation were employed to observe the mean differences and associations between sample measurements, respectively. Bland-Altman and linear regression models were computed to demonstrate the level of agreement and proportional bias, respectively. A p-value of ≤  0.05 with a 95% confidence interval was considered statistically significant.

RESULTS

From a total of 74 HIV-positive individuals, 49 (66.2%) were females. The mean ±  SD age was 36.3 (10.1) years. The mean difference ±  SD of plasma and serum HIV-1 viral load was 0.07 ±  0.75 log copies/mL, (p =  0.428). A strong association with a significant linear correlation (r =  0.862) (p < 0.001) and a high level of agreement were observed between the sample measurements using Pearson's correlation and a Bland-Altman plot, respectively.

CONCLUSIONS

The current study highlights an alternative application of serum-based HIV viral load quantification to enhance the rate of HIV diagnosis and treatment monitoring coverage.

Adherence to Anti-Retroviral Therapy (ART) and Its Determinants Among People Living with HIV/AIDS at Bonga, Kaffa, South-West Ethiopia

Background

The scaling-up of antiretroviral therapy (ART) is the greatest accomplishment to reduce the burden of acquired immunodeficiency syndromes (AIDS) to date. However, it requires optimal adherence to be effective. Thus, this study was designed to assess the level of adherence of people living with HIV (PLWH) to ART and its determinants in one of the hardest-hit areas with HIV in Ethiopia.

Methods

A health facility-based cross-sectional study design was conducted among adult PLWH, age >18 years, and receiving ART in southwest Ethiopia. Data was collected by face-to-face interviews following the Self-Rating Scale Item for drug adherence and from participants' medical cards. The effects of variables related to socio-demographic and socio-economic factors, disease and medication, health facilities, and patients' behavior on ART adherence were analyzed using a binary logistic regression model. The data was analyzed using R software.

Results

Self-reported good adherence to ART recorded in this study was 73.1% (n =301/412). The risk of poor adherence was significantly higher among those who were divorced, merchants, used ART for longer durationsand were found in stage IV WHO pathogenesis. Contrarily, those who had a positive perception of the effectiveness of ART had significantly better adherence to ART. Longer duration on ART and frequency of pills taken, ≥3 pills per day, were significantly associated with a low CD4+ cell count (<500 cells/mm3). For each unit increase in medication frequency per day, the likelihood of having a high viral load of >1000 copies/mL was 5.35 times higher.

Conclusion

The ART adherence documented in this study was graded as moderately low. Some variables, such as clinical, medical, and behavioral, were found to affect the adherence of people living with HIV to ART. Hence, care providers should be aware of such variables in the process of treatment, follow-up, and monitoring of people living with HIV in the study area.

Non-Adherence to Anti-Retroviral Therapy Among Adult People Living with HIV in Ethiopia: Systematic Review and Meta-Analysis

Human immunodeficiency virus remains a global public health problem. Despite efforts to determine the prevalence of non-adherence to ART and its predictors in Ethiopia, various primary studies presented inconsistent findings. Therefore, this review aimed to determine the pooled prevalence of non-adherence to ART and identify its predictors. We have searched PubMed, Google Scholar and Web of Science databases extensively for all available studies. A weighted inverse-variance random-effects model was used to compute the overall non-adherence to ART. The pooled prevalence of non-adherence to ART was 20.68% (95% CI: 17.74, 23.61); I2 = 98.40%; p < 0.001). Educational level of primary school and lower [AOR = 3.5, 95%CI: 1.7, 7.4], taking co-medications [AOR = 0.45, 95%CI: 0.35, 0.59], not using memory aids [AOR = 0.30, 95%CI: 0.13, 0.71], depression [AOR = 2.0, 95%CI: 1.05, 3.79], comorbidity [AOR = 2.12, 95%CI: 1.16, 3.09), under-nutrition [AOR = 2.02, 95%CI: 1.20, 3.43], not believing on ART can control HIV [AOR = 2.31, 95%CI: 1.92, 2.77], lack of access to health facilities [AOR = 3.86, 95%CI: 1.10, 13.51] and taking ART pills uncomfortably while others looking [AOR = 5.21, 95%CI: 2.56, 10.53] were significantly associated with non-adherence to anti-retroviral therapy. The overall pooled prevalence of non-adherence to ART was considerably high in Ethiopia. Educational status, taking co-medications, not using memory aids, depression, comorbidity, under nutrition, not believing on anti-retroviral therapy controls HIV, lack of access to health facilities and taking ART pills uncomfortably were independent predictors of non-adherence to ART in Ethiopia. Therefore, healthcare providers, adherence counselors and supporters should detect non-adherence behaviors and patients' difficulties with ART early, and provide intensive counseling to promote adherence.

Virological and care outcomes of community ART distribution: Experience with the PODI+ model in Kinshasa, Democratic Republic of the Congo

INTRODUCTION

Differentiated service delivery models for HIV treatment can minimize unnecessary burdens on health systems and promote efficient delivery of antiretroviral therapy (ART). Under the PODI+ (poste de distribution communautaire) model, ART multi-month dispensation (MMD) was provided by lay workers (peers) in communities. We compared outcomes among clinically stable adults living with HIV receiving MMD via PODI+ or health facility (HF).

METHODS

Clients receiving MMD at nine HFs and two PODI+ sites in Kinshasa were followed prospectively for one year (2018-2020). Medication possession ratio (MPR) was measured as proportion of total days with medication during the study through record abstraction at 3-month intervals. Viral load was assessed at enrollment and 12 months. We compared MPR and viral load suppression by arm and examined associations and potential confounders using unadjusted and adjusted odds ratios (AOR). Likert-style client satisfaction was collected during 12-month interviews and described by arm.

RESULTS

Odds of maintaining viral load suppression at 12 months for PODI+ participants were two times that for HF participants. In adjusted models, PODI+ participants had 1.89 times the odds of being suppressed at 12 months compared to HF participants (95% CI: 1.10, 3.27). No significant differences in MPR were found between groups (OR: 0.86, 0.38-1.99). Older participants had significantly higher odds of MPR (AOR: 1.02, 95% CI: 1.01, 1.03) and viral suppression (AOR: 1.03, 95% CI: 1.00, 1.07). Satisfaction with services was ≥87% overall, but PODI+ participants rated time spent at site, provider attributes and other care aspects more favorably.

CONCLUSIONS

Participants receiving MMD via peer-run community distribution points had similar MPR, but better virological outcomes and greater satisfaction with care than clinically similar participants receiving MMD through facilities. PODI+ could be a useful model for expansion to serve larger clinic populations from overburdened health facilities, particularly as policy shifts towards more inclusive MMD eligibility requirements.

Barriers and facilitators for interventions to improve ART adherence in Sub-Saharan African countries: A systematic review and meta-analysis

BACKGROUND

The HIV/AIDS pandemic remains a significant public health issue, with sub-Saharan Africa (SSA) at its epicentre. Although antiretroviral therapy (ART) has been introduced to decrease new infections and deaths, SSA reports the highest incidence of HIV/AIDS, constituting two-thirds of the global new infections. This review aimed to elucidate the predominant barriers and facilitators influencing ART adherence and to identify effective strategies to enhance ART adherence across SSA.

METHODS

A comprehensive review was conducted on studies examining barriers to ART adherence and interventions to boost adherence among HIV-positive adults aged 15 and above in SSA, published from January 2010 onwards. The research utilized databases like Medline Ovid, CINAHL, Embase, and Scopus. Included were experimental and quasi-experimental studies, randomized and non-randomized controlled trials, comparative before and after studies, and observational studies such as cross-sectional, cohort, prospective and retrospective studies. Two independent reviewers screened the articles, extracted pertinent data, and evaluated the studies' methodological integrity using Joanna Briggs Institute's standardized appraisal tools. The compiled data underwent both meta-analysis and narrative synthesis.

RESULTS

From an initial pool of 12,538 papers, 45 were selected (30 for narrative synthesis and 15 for meta-analysis). The identified barriers and facilitators to ART adherence were categorized into seven principal factors: patient-related, health system-related, medication-related, stigma, poor mental health, socioeconomic and socio-cultural-related factors. Noteworthy interventions enhancing ART adherence encompassed counselling, incentives, mobile phone short message service (SMS), peer delivered behavioural intervention, community ART delivery intervention, electronic adherence service monitoring device, lay health worker lead group intervention and food assistance. The meta-analysis revealed a statistically significant difference in ART adherence between the intervention and control groups (pooled OR = 1.56, 95%CI:1.35-1.80, p = <0.01), with evidence of low none statistically significant heterogeneity between studies (I2 = 0%, p = 0.49).

CONCLUSION

ART adherence in SSA is influenced by seven key factors. Multiple interventions, either standalone or combined, have shown effectiveness in enhancing ART adherence. To optimize ART's impact and mitigate HIV's prevalence in SSA, stakeholders must consider these barriers, facilitators, and interventions when formulating policies or treatment modalities. For sustained positive ART outcomes, future research should target specific underrepresented groups like HIV-infected children, adolescents, and pregnant women in SSA to further delve into the barriers, facilitators and interventions promoting ART adherence.

Predictors of Suboptimal Adherence Among Children on Antiretroviral Therapy in Southern Ethiopia: A Multicenter Retrospective Follow-Up Study

Objectives: Despite increased access to and availability of antiretroviral therapy, the program's effectiveness is primarily affected by treatment adherence. Therefore, this study aimed to determine the magnitude and predictors of suboptimal adherence among children on ART in Southern Ethiopia. Methods: A multicenter retrospective study was conducted among human immunodeficiency virus (HIV) infected children in Gamo and South Omo zone public health facilities. To identify factors associated with suboptimal adherence, a binary logistic regression model was fitted. Variables with a p-value ≤0.25 in bivariable logistic regression analysis were included in multivariable logistic regression analysis. p-value <0.05 was used to declare statistical significance. Results: The suboptimal adherence was determined to be 30.3% (95% CI: 25.5%, 35.6%). Advanced clinical stage, hemoglobin level <10 mg/dL, unchanged initial regimen, and non-disclosure of HIV sero-status were significant predictors of suboptimal adherence. Conclusion: Suboptimal adherence is a significant public health problem in the study setting. Therefore, designing interventions towards improving adherence is needed especially for children with poor clinical characteristics.

Impaired fasting glucose levels among perinatally HIV-infected adolescents and youths in Dar es Salaam, Tanzania

OBJECTIVE

This study assessed impaired fasting glucose and associated factors among perinatally HIV-infected adolescents and youths in Dar es salaam Tanzania.

BACKGROUND

Impaired fasting glucose is a marker of heightened risk for developing type 2 diabetes among perinatally HIV-infected individuals. Therefore, identifying individuals at this stage is crucial to enable early intervention. Therefore, we assessed impaired fasting glucose (IFG) and associated factors among perinatally HIV-infected population in Dar es salaam Tanzania.

METHODS

A cross-sectional study was conducted among 152 adolescents and youth attending HIV clinic at Muhimbili National Hospital and Infectious Disease Centre from July to August 2020. Fasting blood glucose (>8 hours) was measured using one-touch selects LifeScan, CA, USA. We also examined C-Reactive Protein and interleukin-6 inflammatory biomarkers in relation to impaired fasting glucose (IFG). Associations between categorical variables were explored using Chi-square, and poison regression with robust variance was used to calculate the prevalence ratios.

RESULTS

Of the 152 participants, the majority were male (n=83[54.6%]), and the median age was 15(14-18) years. Overweight or obesity was prevalent in 16.4%, while more than one in ten (13.2%) had high blood pressure (≥149/90mmHg). All participants were on antiretroviral therapy (ART); 46% had used medication for over ten years, and about one in three had poor medication adherence. Among the recruited participants, 29% had impaired fasting glucose. The odds of IFG were two times higher in males compared to females (PR, 2.07, 95% CI 1.19 -3.59 p=0.001). Moreover, we found with every increase of Interleukin 6 biomarker there was a 1.01 probability increase of impaired fasting glucose (PR, 1.01, 95% CI 1.00 - 1.02 p=0.003).

CONCLUSION

About one in three perinatally HIV-infected youths had impaired fasting glucose in Dar es Salaam, Tanzania, with males bearing the biggest brunt. Moreover, with every increase of 1.101 of the probability of having IFG increased. This calls for urgent measures to interrupt the progression to diabetes disease and prevent the dual burden of disease for this uniquely challenged population.

Adherence to Antiretroviral Treatment Among People Who Started Treatment on the Same-Day of HIV Diagnosis in Ethiopia: A Multicenter Observational Study

Introduction

Methods

Results

Conclusion

Assessment of Human Immunodeficiency Virus Care Continuum in Korea using the National Health Insurance System Data

Background

Antiretroviral therapy (ART) has been shown to significantly reduce the likelihood of transmission to other people as well as promoting the health of people living with Human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) (PLH). The purpose of this study was to assess the HIV care continuum of PLH in Korea using the national health insurance system (NHIS) database.

Materials and Methods

From 2006 to 2015, ART prescription/laboratory test claim data and enlisted accompanying comorbidities were extracted from the NHIS database. Utilizing these data, proportion of PLH on ART among those who registered to Korea Disease Control and Prevention Agency (KDCA), HIV viral load testing, prescription trends of ART, medication possession ratio (MPR) of ART, and accompanying comorbidities were reviewed. Factors related with MPR <90% was also investigated among demographic factors, ART prescription, and accompanying comorbidities.

Results

During the observation period, the number of people receiving ART prescription increased from 2,076 in 2006 to 9,201 in 2015. Considering the number of PLHs reported by the KDCA, the proportion of PLHs who received ART prescription increased from 55.4% to 87.6% during the study period. The median value of ART MPR increased from 76.4% to 94.2% and the proportion of patients with MPR >90% increased from 54.3% to 78.2%. The most commonly accompanying comorbidities were dyslipidemia (55.7%), osteoporosis (16.3%), hypertension (15.7%) and diabetes (13.7%), respectively. The proportion of PLH with two or more comorbid conditions increased from 22.0% to 31.6%. Regarding the factors associated with suboptimal compliance, age less than 50 years old, under support of National Medical Aid, alcoholic liver disease, mental and behavioral disorders due to use of alcohol, and ART regimen of protease inhibitor and non-single table regimen integrase strand transfer inhibitor were related with MPR <90%.

Conclusion

The proportion of PLHs who received ART prescription and median MPR of ART increased during the study period. However, proportion of patients with MPR >90% was 78.2% in 2015 and there are still much room for improvement in the aspect of compliance.

Determinant factors for adherence to antiretroviral therapy among adult HIV patients at Dessie Referral Hospital, South Wollo, Northeast Ethiopia: a case-control study

INTRODUCTION

World health organization defined adherence as the extent to which a person's behavior - taking medications, following a diet, or executing lifestyle changes correspond with agreed recommendations from the health care provider. There is a contradiction among studies and previous studies conducted in the study area used a cross-sectional study design. This study aimed to identify determinant factors for adherence to antiretroviral treatment among people living with HIV at Dessie Referral Hospital by using an unmatched case-control study design.

METHODS AND MATERIALS

an institution-based unmatched case-control study design was used on a total sample of 582 (146 controls and 436 cases). Each respondent was selected by consecutive random sampling. The collected data were entered and analyzed by using Statistical Package for Social Science version 25.0. Multivariable binary logistic regression analysis was used to identify variables that were statistically significant determinants.

RESULT

The mean age of the respondents was 41.64 years. About 61.5% of the participants were females. Patients with baseline HIV stage I was more likely to be adherent to the prescribed HIV medicine (AOR: 2.194 95% CI: 1.116, 4.314) as compared with those with baseline WHO stage IV. Patients who did not take anti-tuberculosis medication collaterally with the prescribed HIV medicine were more likely to be adherent (AOR: 2.271 95% CI: 1.257, 4.102). Patients who took antiretroviral therapy for more than 24 months were more likely to be adherent (AOR: 3.665 95% CI: 1.321, 10.170).

CONCLUSION

Initiation of antiretroviral therapy at the later stage of the disease and taking anti-tuberculosis concomitantly were negatively associated with adherence. Being on antiretroviral therapy for a longer duration has a positive association. Health facilities and professionals should strictly apply strategies for the prevention of tuberculosis among HIV patients to avoid concomitant use of anti-tuberculosis medications.