Assessing factors associated with HIV testing among adolescents in Malawi

Improving HIV testing and retention among adolescents and youths: Lessons from a quasi-experimental study of the Red-Carpet Program in Malawi

Adolescents and youth living with HIV (AYLHIV) often face significant challenges in HIV care. Elizabeth Glaser Pediatric AIDS Foundation in Malawi implemented the Red-Carpet Program (RCP) to provide fast-tracked services for AYLHIV in care.This study aimed to assess the effect of RCP on Provider-Initiated HIV testing, linkage to care and antiretroviral therapy (ART), and retention in care among AYLHIV in Blantyre, Malawi. This quasi-experimental study compared outcomes among newly identified AYLHIV enrolled in four intervention health facilities implementing RCP with those of three non-intervention facilities between July 2020 and March 2021. Non-intervention sites were selected by matching based on patient volumes and baseline retention rates prior to the intervention ensuring comparability with the intervention sites. Proportions and Chi-square tests were used to compare outcomes between the two groups. Kaplan-Meier curves were employed to assess longitudinal outcomes, and Cox regression analysis was used to estimate the hazard of non-retention in care. Data were collected from 475 AYLHIV from RCP sites and 248 AYLHIV from non-intervention sites. In the non-intervention sites, 87% of AYLHIV were female, compared to 78% in the RCP sites. A higher proportion of adolescents (67%) underwent provider-initiated HIV testing at intervention site s than at non-intervention sites (51%), p<0.01. Retention in care was higher in RCP sites, with 67% of AYLHIV in care at 12 months post-initiation compared with 56% in non-intervention sites, p = 0.005. AYLHIV from intervention sites were less likely to experience non-retention than those from non-intervention sites (adjusted Hazard Ratio: 0.47, 95% CI: 0.28-0.80). The implementation of the RCP facilitated higher rates of provider-initiated HIV testing among adolescents and youth. Furthermore, RCP demonstrated the potential to improve retention in care The RCP offers promise for enhancing outcomes among this vulnerable population, emphasizing the need for tailored HIV interventions for adolescents and youth.

Epidemiological and viral characteristics of undiagnosed HIV infections in Botswana

Background

HIV-1 is endemic in Botswana. The country’s primary challenge is identifying people living with HIV who are unaware of their status. We evaluated factors associated with undiagnosed HIV infection using HIV-1 phylogenetic, behavioural, and demographic data.

Methods

As part of the Botswana Combination Prevention Project, 20% of households in 30 villages were tested for HIV and followed from 2013 to 2018. A total of 12,610 participants were enrolled, 3596 tested HIV-positive at enrolment, and 147 participants acquired HIV during the trial. Extensive socio-demographic and behavioural data were collected from participants and next-generation sequences were generated for HIV-positive cases. We compared three groups of participants: (1) those previously known to be HIV-positive at enrolment (n = 2995); (2) those newly diagnosed at enrolment (n = 601) and (3) those who tested HIV-negative at enrolment but tested HIV-positive during follow-up (n = 147). We searched for differences in demographic and behavioural factors between known and newly diagnosed group using logistic regression. We also compared the topology of each group in HIV-1 phylogenies and used a genetic diversity-based algorithm to classify infections as recent (< 1 year) or chronic (≥ 1 year).

Results

Being male (aOR = 2.23) and younger than 35 years old (aOR = 8.08) was associated with undiagnosed HIV infection (p < 0.001), as was inconsistent condom use (aOR = 1.76). Women were more likely to have undiagnosed infections if they were married, educated, and tested frequently. For men, being divorced increased their risk. The genetic diversity-based algorithm classified most incident infections as recent (75.0%), but almost none of known infections (2.0%). The estimated proportion of recent infections among new diagnoses was 37.0% (p < 0.001).

Conclusion

Our results indicate that those with undiagnosed infections are likely to be young men and women who do not use condoms consistently. Among women, several factors were predictive: being married, educated, and testing frequently increased risk. Men at risk were more difficult to delineate. A sizeable proportion of undiagnosed infections were recent based on a genetic diversity-based classifier. In the era of “test and treat all”, pre-exposure prophylaxis may be prioritized towards individuals who self-identify or who can be identified using these predictors in order to halt onward transmission in time.

Factors Associated with Utilization of HIV Testing Services among Adolescents Aged 10-19 Years in Lira District, Northern Uganda: A Cross-Sectional Study

Background

HIV testing remains a problem among adolescents in low- and middle-income countries, and yet, HIV testing is a cornerstone in the fight against HIV. However, there is scanty literature on the utilization of HIV testing services by adolescents especially in rural settings. This study is aimed at determining the uptake of HIV testing services and associated factors among adolescents aged 10-19 years in Lira District, Northern Uganda.

Methods

This was a cross-sectional study done among 277 randomly selected adolescents aged 10-19 years attending outpatient clinics in Pentecostal Assembly of God (PAG) Mission Hospital, Ngetta Health Center III, and Boroboro Health Center III. Data were collected using an interviewer-administered structured questionnaire. Data collected included sociodemographic characteristics, history of test and receipt of HIV results in the last three months, and facility-related factors affecting uptake of HIV testing services. Data analysis consisted of descriptive statistics, cross-tabulations, and logistic regression at a 95% level of significance in SPSS version 25.

Results

The uptake of HIV testing services was 43% (119/277) among the study participants. Adolescents who had completed primary education (aOR: 5.47; 95% CI: 1.07-28.15; p = 0.042), are employed (aOR: 2.77; 95% CI: 1.16-6.60; p = 0.022), had used a condom in the last sexual intercourse (aOR: 4.46; 95% CI: 1.78-11.15; p = 0.001), and are involved in HIV testing outreaches (cOR: 10.86; 95% CI: 3.81-30.93; p ≤ 0.001) were more likely to uptake HIV testing services compared to those who had tertiary education, are unemployed, had never used a condom, and are not involved in HIV testing outreaches.

Conclusion

Utilization of HIV testing services by adolescents aged 10-19 in Lira District, Northern Uganda, is generally low. The Ministry of Health should strengthen HIV testing services targeting adolescents to increase uptake of HIV testing services.

Predictors of HIV Testing among Orphaned Youths in Three East African Countries

In parts of sub-Saharan Africa, where HIV prevalence is high, HIV is a leading cause of death among youths. Orphaned and separated youths are an especially vulnerable group, yet we know little about what influences their testing behavior. We conducted multiple logistical regression to examine theory-based predictors of past-year HIV testing among 423 orphaned and separated youths in Ethiopia, Kenya and Tanzania. We also conducted moderation, assessing whether predictors varied by sex. Over one-third of our sample reported past-year HIV testing. Those with greater perceived social support and those who reported sexual HIV risk behavior were more likely to report past-year testing. Furthermore, boys who reported ever previously testing for HIV were more likely, a year later, to report past-year HIV testing. In conclusion, our findings have important implications for intervention development, including the potential for enhanced perceived social support to positively influence HIV testing among orphaned and separated youths.

"When you have a high life, and you like sex, you will be afraid": a qualitative evaluation of adolescents' decision to test for HIV in Zambia and Kenya using the health belief model

Background

HIV testing among adolescents is significantly lower than among adults and many adolescents living with HIV do not know their status. Adolescent perceptions of HIV testing are poorly understood and may negatively affect testing uptake. Using a qualitative design, this study sought to explore perceptions about HIV testing and treatment among adolescents living with HIV and adolescents of unknown HIV status in Lusaka, Zambia and Kenya.

Methods

Study participants were adolescents aged 15–19 years old. The adolescents living with HIV were recruited from HIV support groups at health facilities. Adolescents of unknown HIV status were recruited from existing adolescent groups within the community. In both Zambia and Kenya, four focus group discussions (FGDs) were conducted with adolescents living with HIV and four FGDs were conducted with adolescents whose HIV status was unknown, for a total of 16 FDGs. FGDs consisted of 6–12 participants, a moderator, and a note-taker. FGDs were audio-recorded, transcribed, and translated into transcripts. Transcripts were coded in the qualitative analysis software program MAXQDA v. 12. Data reduction and summary tables were generated to help identify themes across the two study population groups. Data were interpreted within the health belief model.

Results

Adolescents discussed the challenges of facing a positive HIV test result, including fear of a positive result and need to change their lifestyle, fear of social isolation, and perception of the lost opportunity to achieve future dreams. Most adolescents of unknown status were not as aware of the benefits of learning their HIV status, nor were they aware of the ability to live a long and healthy life on ART. HIV-positive adolescents reported that the messages targeted towards adolescents focus on the need to remain HIV-negative, as opposed to the benefits of knowing one’s status. Adolescents described age and requirements for parental permission as a significant limitation in their ability to access HIV testing.

Conclusions

Adolescents require more information about the benefits of testing early and the ability to live a long and healthy life on ART. Educating adolescents that HIV testing is a normative behavior among their peers could strengthen HIV testing among adolescents.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-021-10391-x.

Identifying groups of people with similar sociobehavioural characteristics in Malawi to inform HIV interventions: a latent class analysis

INTRODUCTION

Within many sub-Saharan African countries including Malawi, HIV prevalence varies widely between regions. This variability may be related to the distribution of population groups with specific sociobehavioural characteristics that influence the transmission of HIV and the uptake of prevention. In this study, we intended to identify groups of people in Malawi with similar risk profiles.

METHODS

We used data from the Demographic and Health Survey in Malawi (2015 to 2016), and stratified the analysis by sex. We considered demographic, socio-behavioural and HIV-related variables. Using Latent Class Analysis (LCA), we identified groups of people sharing common sociobehavioural characteristics. The optimal number of classes (groups) was selected based on the Bayesian information criterion. We compared the proportions of individuals belonging to the different groups across the three regions and 28 districts of Malawi.

RESULTS

We found nine groups of women and six groups of men. Most women in the groups with highest risk of being HIV positive were living in female-headed households and were formerly married or in a union. Among men, older men had the highest risk of being HIV positive, followed by young (20 to 25) single men. Generally, low HIV testing uptake correlated with lower risk of having HIV. However, rural adolescent girls had a low probability of being tested (48.7%) despite a relatively high HIV prevalence. Urban districts and the Southern region had a higher percentage of high-prevalence and less tested groups of individuals than other areas.

CONCLUSIONS

LCA is an efficient method to find groups of people sharing common HIV risk profiles, identify particularly vulnerable sub-populations, and plan targeted interventions focusing on these groups. Tailored support, prevention and HIV testing programmes should focus particularly on female household heads, adolescent girls living in rural areas, older married men and young men who have never been married.

Impact of a Comprehensive Adolescent-Focused Case Finding Intervention on Uptake of HIV Testing and Linkage to Care Among Adolescents in Western Kenya

Background:

Low HIV testing uptake prevents identification of adolescents living with HIV and linkage to care and treatment. We implemented an innovative service package at health care facilities to improve HIV testing uptake and linkage to care among adolescents aged 10–19 years in Western Kenya.

Methods:

This quasi-experimental study used preintervention and postintervention data at 139 health care facilities (hospitals, health centers, and dispensaries). The package included health worker capacity building, program performance monitoring tools, adolescent-focused HIV risk screening tool, and adolescent-friendly hours.

The study population was divided into early (10–14 years) and late (15–19 years) age cohorts. Implementation began in July 2016, with preintervention data collected during January–March 2016 and postintervention data collected during January–March 2017. Descriptive statistics were used to analyze the numbers of adolescents tested for HIV, testing HIV-positive, and linked to care services. Preintervention and postintervention demographic and testing data were compared using the Poisson mean test. χ² testing was used to compare the linkage to care rates.

Results:

During the preintervention period, 25,520 adolescents were tested, 198 testing HIV-positive (0.8%) compared with 77,644 adolescents tested with 534 testing HIV-positive (0.7%) during the postintervention period (both P-values <0.001). The proportion of HIV-positive adolescents linked to care increased from 61.6% to 94.0% (P < 0.001). The increase in linkage to care was observed among both age cohorts and within each facility type (both P-values <0.001).

Conclusions:

The adolescent-focused case finding intervention package led to a significant increase in both HIV testing uptake and linkage to care services among adolescents in Western Kenya.

Prevalence and correlates of HIV testing among adolescents 10-19 years in a post-conflict pastoralist community of Karamoja region, Uganda

Background

Adolescents are a priority group in HIV prevention and treatment. This study sought to determine the prevalence and correlates of HIV testing services (HTS) among adolescents in the pastoralist post-conflict area of Karamoja sub region, Uganda.

Methods

A cross sectional study of 1439 adolescents aged 10–19 years, attending nine public health facilities in five of the seven districts of Karamoja, was conducted between August to September 2016. Adolescents were consecutively selected and interviewed using structured interviewer administered questionnaires. All respondents who had never tested for HIV were offered HTS. The main outcome was ever tested for HIV. Correlates of ever tested were analysed using multivariate logistic regression model.

Results

Of the 1439 adolescents, 904 (62.8%) were females, 1203 (83.6%) were aged 15–19 years, 618 (43.0%) had attained primary education and 885 (61.5%) had ever had sex. Overall 1177 (81.8%) had ever tested and received HIV results. Older age (15–19 years) (adj.OR = 2.71, 95% CI: 1.85–3.96), secondary level education or higher (adj.OR = 2.33, 95% CI: 1.33–4.10), and ever had sex (adj.OR = 2.03, 95% CI: 1.42–2.90) were associated with higher odds of HIV testing. Of the 262 who had never tested, 169 (64.5%) accepted testing and 2.4% were HIV positive. Reasons for not accepting the test included fear of being tested and not ready for an HIV test because of perceived suffering HIV positive clients go through.

Conclusion

Awareness of HIV status and uptake of HTS among adolescents in this hard-to-reach post-conflict region was high and close to the global UNAIDS target of 90%. However, the HIV prevalence of 2.4% among the non-testers who accepted to be tested was high and emphasises the need for targeted testing to reach the undiagnosed HIV infected adolescents in this region.