Adherence to anti-retroviral therapy & factors associated with it: A community based cross-sectional study from West Bengal, India

Discrepancies between self-reported medication in adherence and indirect measurement adherence among patients undergoing antiretroviral therapy: a systematic review

BACKGROUND

Given the critical importance of medication adherence in HIV/AIDS treatment, this study aims to compare medication adherence measured by self-report (SR) and indirect measurement among antiretroviral therapy (ART) patients, exploring the differences of adherence results measured by different tools.

METHODS

We systematically searched PubMed, Embase, and the Cochrane Library to identify all relevant literature published up to November 22, 2023, without language restrictions, reporting adherence to ART measured by both SR and indirect measurement methods, while also analyzing individual and group adherence separately. Discrepancies between SR and indirect measurement results were assessed using the Mann-Whitney U test or Wilcoxon signed-rank test, with correlations evaluated using the Pearson correlation coefficient. Following one-to-one comparisons, meta-epidemiological one-step analysis was conducted, and network meta-analysis techniques were applied to compare results obtained through specific adherence assessment tools reported in the identified articles.

RESULTS

The analysis encompassed 65 original studies involving 13,667 HIV/AIDS patients, leading to 112 one-to-one comparisons between SR and indirect measurement tools. Statistically significant differences were observed between SR and indirect measurement tools regarding both individual and group adherence (P < 0.05), with Pearson correlation coefficients of 0.843 for individual adherence and 0.684 for group adherence. During meta-epidemiological one-step analysis, SR-measured adherence was determined to be 3.94% (95% CI: -4.48-13.44%) higher for individual adherence and 16.14% (95% CI: 0.81-18.84%) higher for group adherence compared to indirectly measured results. Subgroup analysis indicated that factors such as the year of reporting and geographic region appeared to influence the discrepancies between SR and indirect measurements. Furthermore, network meta-analysis revealed that for both individual and group adherence, the results obtained from most SR and indirect measurement tools were higher than those from electronic monitoring devices, with some demonstrating statistical significance (P < 0.05).

CONCLUSIONS

The findings underscored the complexity of accurately measuring medication adherence among ART patients. Significant variability was observed across studies, with self-report methods showing a significant tendency towards overestimation. Year of reporting, geographic region, and adherence measurement tools appeared to influence the differences between SR and indirect measurements. Future research should focus on developing and validating integrated adherence measurements that can combine SR data with indirect measures to achieve a more comprehensive understanding of adherence behaviors.

A cross-sectional study of the factors influencing adherence to antiretroviral therapy among adults with human immunodeficiency virus infection in a tertiary care hospital in Puducherry, India

Context

Combating human immunodeficiency virus/acquired immunodeficiency syndrome epidemic has been possible due to advances in prevention strategies and Antiretroviral therapy (ART). Optimal adherence to ART is a major factor in achieving the desired immunological, virological, and patient well-being outcomes. Several socio-demographic, patient, treatment, and health-care system-related factors influence nonadherent behavior to ART.

Aims

This study was planned to assess (1) ART adherence level, (2) factors and reasons associated with nonadherence, and (3) impact of suboptimal adherence on treatment outcomes.

Settings and Design

This was a cross-sectional analytical study of 300 patients in a tertiary care hospital in Puducherry, India.

Methods

Random sampling was used to collect data from patient treatment cards and a predesigned structured questionnaire. The pill count method was used to calculate adherence level.

Statistical Analysis Used

Nonadherence was chosen as a dependent variable and factors affecting adherence were chosen as independent variables. Test for significance was carried out by Chi-square test and Fisher's exact test.

Results

Optimal adherence was seen in 68.3%. Factors significantly associated with nonadherence were lower education level, high prior CD4 count, irregular follow-up, missing doses in the past, and being late for pharmacy pill refills. Adherence was positively associated with mean increase in CD4 count over 6 months.

Conclusions

In our study, the adherence rate is suboptimal which can lead to failure of ART. Nonadherence was associated with a decrease in CD4 count overtime. Most of the factors significantly affecting ART adherence were patient behavior related. These factors can be used for target intervention during reinforcement adherence counseling.

Genotyping and Antiretroviral Drug Resistance Mutations among HIV Patients in Southern Santa Catarina, Brazil

INTRODUCTION

Therapeutic measures have been successful in increasing survival rates and quality of life of HIV/AIDS-infected people. However, some people fail to respond to antiretroviral therapy (HAART) because of viral resistance-associated mutations.

OBJECTIVE

To identify virus genotype and the presence of mutations that alter the susceptibility to HAART, and factors associated with the occurrence of these mutations.

METHODS

A cross-sectional study was conducted on adults living with HIV attending a specialized outpatient clinic in southern Santa Catarina, Brazil. The participants were interviewed and had blood samples collected for analysis. Those with detectable viral load were genotyped.

RESULTS

Out of the 629 patients recruited, 127 subjects were included due to having a detectable viral load. The most common mutations were M184V and K103N. HIV-1 subtype C was the most prevalent strain. Resistance to HAART was associated with modification in the treatment regimen (p <0.001).

CONCLUSION

This study concluded that the circulating subtype virus was subtype C and that the mutations K103N and M184V were the most prevalent strains in southern Santa Catarina, Brazil.

Adherence to Antiretroviral Therapy Among HIV Patients in India: A Systematic Review and Meta-analysis

We conducted a systematic review and meta-analysis to estimate the prevalence of adherence to antiretroviral therapy (ART) in India, the third largest HIV epidemic in the world. We identified peer reviewed literature published between 2007 and 2017 to extract data on ART adherence. We estimated pooled prevalence of adherence to ART using a random-effects model. Thirty-two eligible studies (n = 11,543) were included in the meta-analysis. Studies were mostly clustered in the southern and western Indian states. Overall, 77% (95% Confidence Interval 73-82; I² = 96.80%) of patients had optimum adherence to ART. Women had higher prevalence of optimum adherence compared to men. Depression or anxiety were significant risk factors in seven of the fifteen studies reporting determinants of nonadherence. Studies should be performed to explore the reasons for gender gap in ART adherence and HIV program in India should prioritize mental health issues among HIV patients to improve ART adherence.

Correlates of and barriers to ART adherence among adherence-challenged people living with HIV in southern India

Suboptimal adherence to Antiretroviral Therapy (ART) regimens can lead to the development of drug resistance, virologic and clinical failure, and, on the community level, the spread of drug-resistant HIV. To design effective interventions, it is crucial to understand locally specific barriers to optimal adherence. Self-report data from a cross-sectional sample of 527 adherence-challenged people living with HIV (PLWH) in the South-Indian state of Karnataka showed that they took on average 68% of prescribed doses in the past month. Large majorities of participants encountered individual (95%), social/structural (88%), and clinic/regimen (80%) adherence barriers. Multivariate linear regression analyses of past month adherence showed that disclosure to all adults in the household was positively related to adherence, as was employing a larger number of adherence strategies, perceiving more benefits of ART, and having been on ART for longer. Fears of stigmatization upon disclosure of HIV-status to friends and people at work were negatively related to adherence. These results suggest that some barriers, especially individual-level barriers like forgetfulness are very common and can be targeted with relatively simple individual-level strategies. Other barriers, related to fear of stigma and lack of disclosure may require family- or community-level interventions.

Retention in care and adherence to HIV and AIDS treatment in Anambra State Nigeria

Background

Retaining patients on antiretroviral treatment in care is critical to sustaining the 90:90:90 vision. Nigeria has made some progress in placing HIV-positive patients on treatment. In an effort to increase access to treatment, ART decentralization has been implemented in the country. This is aimed at strengthening lower level health facilities to provide comprehensive antiretroviral treatment. We determined the level of retention and adherence to treatment as well as the associated factors among private and public secondary level hospitals in Anambra State.

Method

We conducted a cross-sectional study among patients who had taken antiretroviral treatment for at least one complete year. A structured questionnaire and patient record review were used to extract information on patient adherence to treatment, and retention in care. Adherence to treatment was ascertained by patient self-report of missed pills in the 30 days prior to date of interview. Retention in care was ascertained using the 3-month visit constancy method reviewing the period spanning 12 months prior to the study.

Result

We found a comparable level of retention in care (private 81.1%; public 80.3%; p = 0.722). However, treatment adherence was significantly higher amongst participants in the private hospitals compared to those in the public hospitals (private: 95.3%; public: 90.7%; p = 0.001). Determinants of good retention in the private hospitals included disclosure of one’s HIV status (AOR: 1.94, 95% CI: 1.09–3.46), being on first-line regimen (AOR: 3.07, 95% CI: 1.27–7.41), whereas being on once-daily regimen (AOR: 0.58, 95% CI: 0.36–0.92), and being currently married (AOR: 0.54 95% CI: 0.32–0.91) determined poor retention. In the public hospitals, only disclosure (AOR: 3.12 95% CI: 1.81–5.56) determined good retention, whereas, spending less than N1000 on transport (AOR: 0.230 95% CI: 0.07–0.78) and residing in a rural area (AOR: 0.64 95% CI: 0.41–0.99) determined poor retention. None of the factors determined adherence.

Conclusion

Retention in care was high and comparable among the different hospital types and HIV disclosure status was an important factor relating to retention in care. The other factors that determined retention were however different at public and private hospitals. The HIV program manager should consider these variations in designing programs to improve patient retention in care and adherence to treatment.

Depression Among Alcohol Consuming, HIV Positive Men on ART Treatment in India

Depression, as well as other psychosocial factors, remains largely unaddressed among people living with HIV (PLHIV) in low and middle-income countries. Depression is a common occurrence among PLHIV and is elevated in those who consume alcohol. This paper will document the presence of depressive symptoms in alcohol-consuming male PLHIV receiving antiretroviral treatment (ART) in India. It examines the correlates of depressive symptoms and uses the data from in-depth interviews to explain the nature of the statistical relationships obtained from an NIH-funded a multilevel, multi-centric intervention study. A cross-sectional, baseline survey was administered to 940 alcohol consuming, male PLHIV in five hospital-based ART Centers in urban Maharashtra, India via face to face interviews from October 2015 to April 2016. An additional 55 men were recruited independently to engage in in-depth interviews on alcohol use and other factors related to adherence. The results of the survey showed that approximately 38% of PLHIV reported having moderate to severe depressive symptoms. Depressive symptoms were positively associated with higher levels of family-related concerns (OR 1.18; 95% CI 1.12-1.23), work difficulties (OR 2.04; 95% CI 1.69-2.69) and HIV-related self-stigma (OR 1.05; 95% CI 1.03-1.07) and a lower level of ART service satisfaction (OR 0.58 95% CI 0.44-0.77). The results of in-depth interviews showed that PLHIV's tenshun (a Hindi term most closely corresponding to depressive symptoms) resulted from feelings of guilt and concerns about how family, friends, and neighbors might react to their HIV status and the potential for loss of a job as a result of disclosure of their HIV status at work. The level of depressive symptoms among male PLHIV involved in ART treatment points to the need to strengthen the psychological component of PLHIV treatment in India.

World Health Organization Dimensions of Adherence to Antiretroviral Therapy: A Study at Antiretroviral Therapy Centre, Aligarh

INTRODUCTION

With the availability of antiretroviral therapy (ART) and subsequent change in the HIV/AIDS disease dynamic to a chronic manageable disease, adherence studies have received increasing attention. However, there is a paucity of studies that have considered World Health Organization (WHO) dimensions of adherence to ART. Therefore, this study was conducted with the objectives of determining the prevalence of adherence and the association of various factors across five WHO dimensions to adherence.

METHODS

A cross-sectional study was carried out at the ART Centre, Aligarh. A total of 440 adult patients, taking treatment from the ART Centre, Aligarh were selected. A self-reported instrument of missing pills was used to measure adherence. Various factors across five WHO dimensions were studied.

RESULTS

Prevalence of adherence in our study was 81.3%. Among the five dimensions of adherence, distance from home (odds ratio [OR] 0.980; 95% confidence interval [CI] 0.964-0.997) among socioeconomic determinants, frequent adherence counseling (OR 8.737; 95% CI 4.076-18.727) among health system-related, drug regimen (OR 2.202; 95% CI 1.023-4.738) and absence of side effects (OR 3.293; 95% CI 1.473-7.365) among therapy related, absence of substance abuse (OR 2.747; 95% CI 1.209-6.243), and perceived change in health status (OR 4.196; 95% CI 1.613-10.915) among patient-related dimension were found to be significantly associated with adherence to ART, while clinical condition dimension did not play a significant role.

CONCLUSION

The ART adherence rate is still below satisfactory levels for long-term viral load suppression. WHO multidimensional approach - which was found to be quite relevant in our study setting - could be applied to effectively solve the adherence problem in our country.

HIV-1 Drug Resistance and Third-Line Therapy Outcomes in Patients Failing Second-Line Therapy in Zimbabwe

OBJECTIVES

To analyze the patterns and risk factors of HIV drug resistance mutations among patients failing second-line treatment and to describe early treatment responses to recommended third-line antiretroviral therapy (ART) in a national referral HIV clinic in Zimbabwe.

METHODS

Patients on boosted protease inhibitor (PI) regimens for more than 6 months with treatment failure confirmed by 2 viral load (VL) tests >1000 copies/mL were genotyped, and susceptibility to available antiretroviral drugs was estimated by the Stanford HIVdb program. Risk factors for major PI resistance were assessed by logistic regression. Third-line treatment was provided as Darunavir/r, Raltegravir, or Dolutegravir and Zidovudine, Abacavir Lamivudine, or Tenofovir.

RESULTS

Genotypes were performed on 86 patients who had good adherence to treatment. The median duration of first- and second-line ART was 3.8 years (interquartile range [IQR], 2.3-5.1) and 2.6 years (IQR, 1.6-4.9), respectively. The median HIV viral load and CD4 cell count were 65 210 copies/mL (IQR, 8728-208 920 copies/mL) and 201 cells/mm3 (IQR, 49-333 cells/mm3). Major PI resistance-associated mutations (RAMs) were demonstrated in 44 (51%) non-nucleoside reverse transcriptase inhibitor RAMs in 72 patients (83%) and nucleoside reverse transcriptase inhibitors RAMs in 62 patients (72%). PI resistance was associated with age >24 years (P = .003) and CD4 cell count <200 cells/mm3 (P = .007). In multivariable analysis, only age >24 years was significantly associated (adjusted odds ratio, 4.75; 95% confidence interval, 1.69-13.38; P = .003) with major PI mutations. Third-line DRV/r- and InSTI-based therapy achieved virologic suppression in 29/36 patients (81%) after 6 months.

CONCLUSIONS

The prevelance of PI mutations was high. Adolescents and young adults had a lower risk of acquiring major PI resistance mutations, possibly due to poor adherence to ART. Third-line treatment with a regimen of Darunavir/r, Raltegravir/Dolutegravir, and optimized nucleoside reverse transcriptase inhibitors was effective.

Non-adherence to anti-retroviral therapy among HIV infected adults in Mon State of Myanmar

Background

The provision of Anti-Retroviral Therapy (ART) was started in Myanmar in 2005 in collaboration with the National AIDS Program and the private sector. Successful clinical management of HIV-infected patients is subject to optimal adherence. The aim of the study was to determine the prevalence of adherence to ART and identify factors associated with non-adherence to ART among HIV infected adults registered in a private sector setting in Mon State, Myanmar.

Methods

This cross-sectional study was conducted with adults living with HIV receiving ART at an HIV outpatient clinic between April and May 2016. A total of three hundred People Living with HIV(PLHIV) were interviewed using a pretested and structured questionnaire. The 30 days Visual Analog Scale (VAS) adherence instrument was used to assess the level of adherence. Multivariable logistic regression analysis was used to determine factors associated with non-adherence to ART.

Results

Among 300 patients (male 37.7% and female 62.3%, with a mean age of 41.3 years, standard deviation 8.7), 84% reported ≥95% adherence to ART in the past month. Among 16% of those reporting non-adherence, major reasons for skipping the medication were being busy (23%), being away from home (17.7%) and being forgetful (12.3%). In multivariable logistic rgeression, low behavioural skills on ART adherence (OR = 0.31, 95% CI: 0.10-0.94), tobacco use (OR = 3.22, 95% CI:1.28-8.12), having disclosed their HIV status (OR = 0.07, 95% CI: 0.01-0.69), having a partner who was not on ART (OR = 4.25, 95% CI: 1.70-10.64) and among men, having erectile dysfunction (OR = 15.14, 95% CI: 1.41-162.66) were significant associated with ART non-adherence.

Conclusion

Non-adherence to ART was associated with individual moderating factors and behavioral skills. Priority measures such as addressing risk behaviour and behavioural change communication tailored to individual patients’ lifestyles requires comprehensive interventions to improve adherence.