Positive attitudes to pediatric HIV testing: findings from a nationally representative survey from Zimbabwe

Acceptability and usability of a paediatric HIV screening tool in high-volume outpatient settings in Malawi, perspectives from caregivers and healthcare workers

BACKGROUND

Using an HIV pretest screening tool to identify children most at risk for HIV infection may be a more efficient and cost-effective approach to identify children living with HIV in resource-limited settings. These tools seek to reduce overtesting of children by increasing the positive predictive value while ensuring a high negative predictive value for those screened for HIV.

METHODS

This qualitative study in Malawi evaluated acceptability and usability of a modified version of the Zimbabwe HIV screening tool to identify children aged 2-14 years most-at-risk. The tool included additional questions about previous hospitalisations due to malaria and prior documented diagnoses. Sixteen interviews were conducted with expert clients (ECs), trained peer-supporters, which administered the screening tool and 12 interviews with biological and non-biological caregivers of screened children. All interviews were audiorecorded, transcribed and translated. Transcripts were analysed manually using a short-answer analysis, compiling responses for each question by study participant group. Summary documents were generated, identifying common and outlier perspectives.

RESULTS

The HIV paediatric screening tool was generally accepted by caregivers and ECs, with both groups seeing the benefit of the tool and promoting its use. The ECs who were primarily responsible for implementing the tool initially struggled with acceptance of the tool but started to accept it after additional training and mentorship was provided. Overall, caregivers accepted having their children tested for HIV, although non-biological caregivers expressed hesitancy in giving consent for HIV testing. ECs reported challenges with the ability for non-biological caregivers to answer some questions.

CONCLUSION

This study found general acceptance of paediatric screening tools in children in Malawi and identified some minor challenges that raise important considerations for tool implementation. These include the need for a thorough orientation of the tools for the healthcare workers and caregivers, appropriate space at the facility, and adequate staffing and commodities.

Home-based HIV Testing for Children: A Useful Complement for Caregivers with More Children, Who are Male, and with an HIV Negative Partner

Expanding index and family-based testing (HBT) is a priority for identifying children living with HIV. Our study characterizes predictors that drive testing location choice for children of parents living with HIV. Kenyan adults living with HIV were offered a choice of HBT or clinic-based testing (CBT) for any of their children (0-12 years) of unknown HIV status. Multilevel generalized linear models were used to identify correlates of choosing HBT or CBT for children and testing all versus some children within a family, including caregiver demographics, HIV history, social support, cost, and child demographics and HIV prevention history. Among 244 caregivers living with HIV and their children of unknown HIV status, most (72%) caregivers tested children using CBT. In multivariate analysis, female caregivers [aRR 0.52 (95% CI 0.34-0.80)] were less likely to choose HBT than male caregivers. Caregivers with more children requiring testing [aRR 1.23 (95% CI 1.05-1.44)] were more likely to choose HBT than those with fewer children requiring testing. In subgroup univariate analysis, female caregivers with a known HIV negative spouse were significantly more likely to choose HBT over CBT than those with a known HIV positive spouse [RR 2.57 (95% CI 1.28-5.14), p = 0.008], no association was found for male caregivers. Child demographics and clinical history was not associated with study outcomes. Caregiver-specific factors were more influential than child-specific factors in caregiver choice of pediatric HIV testing location. Home-based testing may be preferable to families with higher child care needs and may encourage pediatric HIV testing if offered as an alternative to clinic testing.

Barriers to early infant diagnosis of HIV in the Wa Municipality and Lawra District of Upper West Region, Ghana

Objective

We identified socio-demographic, health system and psycho-social barriers to Early Infant Diagnosis (EID) of HIV in the Upper West Region of Ghana.

Design

An unmatched case control study of 96 cases and 96 controls was conducted in the ART centers in Lawra district and Wa Municipality between December 2014 and April 2015.

Setting

A public health facility

Participants

We defined a case as an HIV positive mother with an exposed infant who received EID service between January 2011 and December 2014. A control was defined as HIV Positive Mother with an exposed infant who did not receive EID services between January 2011 and December 2014.

Main outcome

EID by dry blood spot Deoxyribonucleic acid Polymerase chain reaction.

Results

A total of 192 mother-infant pairs were assessed. The mean age of infants at testing for cases was 17.3±14.9 weeks. Mother-to-child-transmission-rate was 2.3%. Factors associated with EID testing included: mother being formally employed (cOR=2.0: 95%CI:1.1–3.8), maternal formal education (cOR=2.0, 95%CI: 1.1–3.6) and maternal independent source of income (cOR 2.2, 95%CI 1.2–4.1). After adjusting for confounders, maternal independent income source was associated with EID testing (aOR 2.2, 95%CI 1.2–4.1). Median turn-around time of EID result was 11 weeks (IQR 4–27 weeks).

Conclusion

Women need to be empowered to gain an independent source of income. This can help maximize the benefits of e-MTCT and increase EID in the Upper West Region of Ghana.

Funding

This work was funded by the authors

HIV risk screening and HIV testing among orphans and vulnerable children in community settings in Tanzania: Acceptability and fidelity to lay-cadre administration of the screening tool

INTRODUCTION

HIV risk screening tool validation studies have not typically included process evaluations to understand tool implementation. The study aim was to assess the fidelity to which an HIV risk screening tool was administered by lay workers and acceptability of delivering home-based screening coupled with HIV testing to beneficiaries in an orphans and vulnerable children (OVC) program.

METHODS

This cross-sectional study was conducted March-April 2019 in two regions of Tanzania. Community case workers (CCW) were observed conducting screenings with OVC 2-19 years and participated in focus group discussions. Research staff used structured observation checklists to capture if screening questions were asked or reworded by CCW. In-depth interviews were conducted with older adolescents and caregivers in their homes following screening and testing. A composite score was developed for the checklist. Qualitative data were thematically analyzed to address screening and testing perceptions and experiences.

RESULTS

CCW (n = 32) participated in 166 observations. Commonly skipped items were malnutrition (34% of all observed screenings) and sexual activity and pregnancy (20% and 45% of screenings for adolescents only). Items frequently re-worded included child abuse (22%) and malnutrition (15%). CCW had an average composite observation score of 42/50. CCW in focus groups (n = 34) found the screening process acceptable. However, they described rewording some questions viewed as harsh or socially inappropriate to ask. Overall, adolescent beneficiaries (n = 17) and caregivers (n = 25) were satisfied with home-based screening and testing and reported no negative consequences. Learning one's HIV negative status was seen as an opportunity to discuss or recommit to healthy behaviors. While respondents identified multiple benefits of home testing, they noted the potential for privacy breaches in household settings.

CONCLUSIONS

We found sub-optimal fidelity to the administration of the screening tool by CCW in home environments to children and adolescents enrolled in an OVC program. Improvements to questions and their delivery and ongoing mentorship could strengthen tool performance and HIV case finding using a targeted testing approach. Overall, home-based HIV risk screening and testing were acceptable to beneficiaries and CCW, could improve testing uptake, and serve as a platform to promote healthy behaviors for those with limited health system interactions.

Implementation of blanket provider-initiated testing and counselling: Predictors of HIV seropositivity among infants, children and adolescents in Cameroon

Objectives

Study design

Methods

Results

Conclusions

•

Methods to increase the yield of PITC remain unclear.

•

HIV seropositivity predictors could improve PITC yield.

•

Identifying HIV seropositivity predictors among children and adolescents.

•

Targeted HIV testing to improve PITC yield in HIV high burden countries.

•

HIV seropositivity predictors could reduce gap in pediatric and adolescent ART.

Parental and child-level predictors of HIV testing uptake, seropositivity and treatment initiation among children and adolescents in Cameroon

Background

There is a growing body of evidence positioning targeted provider-initiated testing and counselling (tPITC, also known as index case testing) as a promising HIV case-finding and linkage strategy among children and adolescents. However, the effectiveness and efficiency of this strategy is limited by low HIV testing uptake and case detection rates. Despite this fact, there is very little literature on factors associated with HIV testing uptake, HIV seropositivity and ART-enrolment in tPITC implementation among African children. This study aims to bridge this information gap and contribute in improving the effectiveness and efficiency of tPITC among children and adolescents in Cameroon and beyond.

Methods

In three ART clinics where tPITC was previously inexistent, we introduced the routine implementation of this strategy by inviting parents living with HIV/AIDS in care to have their biological children (6 weeks-19 years) HIV-tested. Children of consenting parents were HIV-tested; those testing positive were enrolled on ART. Parental and child-level characteristics associated with HIV testing uptake, seropositivity and ART-enrollment were assessed using bivariate and multivariate regression analysis at 5% significance level.

Results

We enrolled 1,236 parents, through whom 1,990 children/adolescents were recruited for HIV testing. Among enrolled parents, 46.2% (571/1,236) had at least one child tested, and 6.8% (39/571) of these parents had at least one HIV-positive child. Among enrolled children/adolescents, 56.7% (1,129/1,990) tested for HIV and 3.5% (40/1129) tested HIV-positive. Parental predictors of HIV testing uptake among children/adolescents were sex, occupation and duration on ART: female [aOR = 1.6 (1.1–2.5)], office workers/students [aOR = 2.0 (1.2–3.3)], and parents with ART duration > 5 years [aOR = 2.0 (1.3–2.9)] had significantly higher odds to test a child than male, farmers/traders, and parents with ART duration < 5 years respectively. The only child-level predictor of testing uptake was age: children < 18 months [aOR = 5(2–10)] had significantly higher odds to test for HIV than adolescents > 15 years. Parents of children identified as HIV-positive were more likely to be female, aged 40–60 years, farmers/traders, widows/divorcees and not on ART. Children found HIV-positive and who were ART-enrolled were more likely to be female and aged 5–9 years. However, none of the above-mentioned associations was statistically significant.

Conclusions

Parents who were male, farmers/traders, and on ART for ≤ 5 years were less likely to test their children for HIV. Also, adolescents 10–19 years old were less likely to be tested. Therefore, these groups should be targeted with intensive counseling and follow-up to facilitate optimal testing uptake. No association was found between parental or child-level characteristics and HIV seropositivity among tested children. This finding prompts for further research to investigate approaches to better identify and target HIV testing to children/adolescents with the highest likelihood of HIV seropositivity.

Clinical trial registration

Reg: CinicalTrials.gov # NCT03024762.

Family Testing: An Index Case Finding Strategy to Close the Gaps in Pediatric HIV Diagnosis

Despite significant advances in pediatric HIV treatment, too many children remain undiagnosed and thus without access to lifesaving antiretroviral therapy. It is critical to identify these children and initiate antiretroviral therapy as early as possible. Although the children of HIV-infected adults are at higher risk of infection, few access HIV testing services because of missed opportunities in existing case finding programs. Family testing is an index case finding strategy through which HIV-infected patients are systematically screened to identify family members with unknown HIV status. By specifically targeting a high-risk population, family testing is a pragmatic, high-yield, and efficient approach to identify previously undiagnosed HIV-infected children and link them to care before they become symptomatic. Despite this, incorporation of family testing into national guidelines and implementation of this case finding approach is variable. In this article, we review the evidence base for family testing, describe its challenges, and provide guidance and sample tools for program managers aiming to integrate family testing into existing health systems.

Regulation of HIV self-testing in Malawi, Zambia and Zimbabwe: a qualitative study with key stakeholders

INTRODUCTION

HIV self-testing (HIVST) is being introduced as a new way for more undiagnosed people to know their HIV status. As countries start to implement HIVST, assuring the quality and regulating in vitro diagnostics, including HIVST, are essential. We aimed to document the emerging regulatory landscape and perceptions of key stakeholders involved in HIVST policy and regulation prior to implementation in three low- and middle-income countries.

METHODS

Between April and August 2016, we conducted semi-structured interviews in Malawi, Zambia and Zimbabwe to understand the relationships between different stakeholders on their perceptions of current and future HIVST regulation and the potential impact on implementation. We purposively sampled and interviewed 66 national-level key stakeholders from the Ministry of Health and the regulatory, laboratory, logistical, donor and non-governmental sectors. We used a thematic approach to analysis with an inductively developed common coding framework to allow inter-country comparison of emerging themes.

RESULTS

In all countries, the national reference laboratory was monitoring the quality of HIVST kits entering the public sector. In Malawi, there was no legal mandate to regulate medical devices, in Zambia one regulatory body with a clear mandate had started developing regulations and in Zimbabwe the mandate to regulate was overlapping between two bodies. Stakeholders indicated that they had a poor understanding of the process and requirements for HIVST regulation, as well as lack of clarity and coordination between organizational roles. The need for good collaboration between sectors, a strong post-market surveillance model for HIVST and technical assistance to develop regulators capacity was noted as priorities. Key informants identified technical working groups as a potential way collaboration could be improved upon to accelerate the regulation of HIVST.

CONCLUSION

Regulation of in vitro diagnostic devices, including HIVST, is now being recognized as important by regulators after a regional focus on pharmaceuticals. HIVST is providing an opportunity for each country to develop similar regulations to others in the region leading to a more coherent regulatory environment for the introduction of new devices.

Brief Report: Disclosure, Consent, Opportunity Costs, and Inaccurate Risk Assessment Deter Pediatric HIV Testing: A Mixed-Methods Study

BACKGROUND

Prompt child HIV testing and treatment is critical; however, children are often not diagnosed until symptomatic. Understanding factors that influence pediatric HIV testing can inform strategies to increase testing.

METHODS

A mixed-methods study was conducted at a tertiary hospital in Nairobi, Kenya. Three focus group discussions with health care workers (HCWs) and 18 in-depth interviews with HIV-infected adults with children of unknown status were analyzed using thematic analysis. A structured questionnaire was administered to 116 HIV-infected caregivers of children of unknown status to triangulate qualitative findings.

RESULTS

Analysis revealed 3 key periods of the pediatric HIV testing process: decision to test, test visit, and posttest. Key issues included: decision to test: inaccurate HIV risk perception for children, challenges with paternal consent, lack of caregiver HIV status disclosure to partners or older children; test experience: poor understanding of child consent/assent and disclosure guidelines, perceived costs of testing and care, school schedules, HCW discomfort with pediatric HIV testing; and posttest: pessimism regarding HIV-infected children's prognosis, caregiver concerns about their own emotional health if their child is positive, and challenges communicating about HIV with children. Concerns about all 3 periods influenced child testing decisions. In addition, 3 challenges were unique to pediatric HIV: inaccurate HIV risk perception for children; disclosure, consent, and permission; and costs and scheduling.

CONCLUSIONS

Pediatric HIV testing barriers are distinct from adult barriers. Uptake of pediatric HIV testing may be enhanced by interventions to address misconceptions, disclosure services, psychosocial support addressing concerns unique to pediatric testing, child-focused HCW training, and alternative clinic hours.

Active case finding: comparison of the acceptability, feasibility and effectiveness of targeted versus blanket provider-initiated-testing and counseling of HIV among children and adolescents in Cameroon

Background

Children and adolescents still lag behind adults in accessing antiretroviral therapy (ART), which is largely due to their limited access to HIV testing services. This study compares the acceptability, feasibility and effectiveness of targeted versus blanket provider-initiated testing and counseling (PITC) among children and adolescents in Cameroon.

Methods

During a 6-month period in three hospitals in Cameroon, we invited HIV-positive parents to have their biological children (6 weeks-19 years) tested for HIV (targeted PITC). During that same period and in the same hospitals, we also systematically offered HIV testing to all children evaluated at the outpatient department (blanket PITC). Children of consenting parents were tested for HIV, and positive cases were enrolled on ART. We compared the acceptability, feasibility and effectiveness of targeted and blanket PITC using Chi-square test at 5% significant level.

Results

We enrolled 1240 and 2459 eligible parents in the targeted PITC (tPITC) and blanket PITC (bPITC) group, and 99.7% and 98.8% of these parents accepted the offer to have their children tested for HIV, respectively. Out of the 1990 and 2729 children enrolled in the tPITC and bPITC group, 56.7% and 90.3% were tested for HIV (p < 0.0001), respectively. The HIV positivity rate was 3.5% (CI:2.4–4.5) and 1.6% (CI:1.1–2.1) in the tPITC and bPITC (p = 0.0008), respectively. This finding suggests that the case detection was two times higher in tPITC compared to bPITC, or alternatively, 29 and 63 children have to be tested to identify one HIV case with the implementation of tPITC and bPITC, respectively. The majority (84.8%) of HIV-positive children in the tPITC group were diagnosed earlier at WHO stage 1, and cases were mostly diagnosed at WHO stage 3 (39.1%) (p < 0.0001) in the bPITC group. Among the children who tested HIV-positive, 85.0% and 52.5% from the tPITC and bPITC group respectively, were enrolled on ART (p = 0.0018).

Conclusions

The tPITC and bPITC strategies demonstrated notable high HIV testing acceptance. tPITC was superior to bPITC in terms of case detection, case detection earliness and linkage to care. These findings indicate that tPITC is effective in case detection and linkage of children and adolescents to ART.

Trial registration

Trial registration Number: NCT03024762. Name of Registry: ClinicalTrial.gov. Date registration: January 19, 2017 (‘retrospectively registered’). Date of enrolment first patient: 15/07/2015.

Electronic supplementary material

The online version of this article (10.1186/s12887-018-1276-7) contains supplementary material, which is available to authorized users.

"We did not know what was wrong"-Barriers along the care cascade among hospitalized adolescents with HIV in Gaborone, Botswana

High mortality among adolescents with HIV reflects delays and failures in the care cascade. We sought to elucidate critical missed opportunities and barriers to care among adolescents hospitalized with HIV at Botswana's tertiary referral hospital. We enrolled all HIV-infected adolescents (aged 10-19 years) hospitalized with any diagnosis other than pregnancy from July 2015 to January 2016. Medical records were reviewed for clinical variables and past engagement in care. Semi-structured interviews of the adolescents (when feasible) and their caregivers explored delays and barriers to care. Twenty-one eligible adolescents were identified and 15 were enrolled. All but one were WHO Clinical Stage 3 or 4. Barriers to diagnosis included lack of awareness about perinatal HIV infection, illness or death of the mother, and fear of discrimination. Barriers to adherence to antiretroviral therapy included nondisclosure, isolation, and mental health concerns. The number of hospitalized HIV-infected adolescents was lower than expected. However, among those hospitalized, the lack of timely diagnosis and subsequent gaps in the care cascade elucidated opportunities to improve outcomes and quality of life for this vulnerable group.

Implementation and Operational Research: Active Referral of Children of HIV-Positive Adults Reveals High Prevalence of Undiagnosed HIV

OBJECTIVES

Few routine systems exist to test older, asymptomatic children for HIV. Testing all children in the population has high uptake but is inefficient, whereas testing only symptomatic children increases efficiency but misses opportunities to optimize outcomes. Testing children of HIV-infected adults in care may efficiently identify previously undiagnosed HIV-infected children before symptomatic disease.

METHODS

HIV-infected parents in HIV care in Nairobi, Kenya were systematically asked about their children's HIV status and testing history. Adults with untested children ≤12 years old were actively referred and offered the choice of pediatric HIV testing at home or clinic. Testing uptake and HIV prevalence were determined, as were bottlenecks in pediatric HIV testing cascade.

RESULTS

Of 10,426 HIV-infected adults interviewed, 8,287 reported having children, of whom 3,477 (42%) had children of unknown HIV status, and 611 (7%) had children ≤12 years of unknown HIV status. After implementation of active referral, the rate of pediatric HIV testing increased 3.8-fold from 3.5 to 13.6 children tested per month (Relative risk: 3.8, 95% confidence interval: 2.3 to 6.1). Of 611 eligible adults, 279 (48%) accepted referral and were screened, and 74 (14%) adults completed testing of 1 or more children. HIV prevalence among 108 tested children was 7.4% (95% confidence interval: 3.3 to 14.1%) and median age was 8 years (interquartile range: 2-11); 1 child was symptomatic at testing.

CONCLUSIONS

Referring HIV-infected parents in care to have their children tested revealed many untested children and significantly increased the rate of pediatric testing; prevalence of HIV was high. However, despite increases in pediatric testing, most adults did not complete testing of their children.

Pediatric Treatment Scale-Up: The Unfinished Agenda of the Global Plan

Five million children have died of AIDS-related causes since the beginning of the epidemic. In 2011, the Global Plan Towards the Elimination of New HIV Infections Among Children by 2015 and Keeping Their Mothers Alive (Global Plan) created the political environment to catalyze both the resources and commitment to end pediatric AIDS. Implementation and scale-up have encountered substantial hurdles, however, which have resulted in slow progress. Reasons include a lack of emphasis on testing outside of prevention of mother-to-child transmission services, an overall lack of integration and coordination with other services, a lack of training among providers, low confidence in caring for children living with HIV, and a lack of appropriate formulations for pediatric antiretrovirals. During the Global Plan period, we have learned that simplification is essential to successful decentralization, integration, and task shifting of services; that innovations require careful planning; and that the family is an important unit for delivering HIV care and treatment services. The post-Global Plan phase presents a number of noteworthy challenges that all stakeholders, national programs, and communities must tackle to guarantee universal treatment for children living with HIV. Accelerated action is essential in ensuring that HIV diagnosis and linkage to treatment happen as quickly and effectively as possible. As fewer infants are infected because of effective prevention of mother-to-child transmission interventions and the population of children living with HIV will age into adolescence adapting service delivery models to the epidemic context, and engaging the community will be critical to finding new efficiencies and allowing us to realize a true HIV-free generation-and to end AIDS by 2030.

HIV-1 Vertical Transmission in Zimbabwe in 622 Mother and Infant Pairs: Rethinking the Contribution of Mannose Binding Lectin Deficiency in Africa

Vertical transmission of human immunodeficiency virus (HIV) remains a major global health problem. We assessed the association of mannose binding lectin (MBL) deficiency and vertical transmission of HIV. Novel diagnostics would be a major breakthrough in this regard. MBL is a liver-derived protein and a key component of the innate immune system. MBL levels may be classified as normal, intermediate, or deficient in the plasma and can use MBL2 haplotypes as a proxy. These haplotypes comprise polymorphisms in the MBL2 gene and promoter region and are known to result in varying levels of MBL deficiency. MBL deficiency can be defined as presence of A/O and O/O genotypes in the mothers and their children. MBL deficiency leads to defective opsonization activities of the innate immune system and increased susceptibility to several infections, including HIV-1. We determined the prevalence of MBL deficiency, using MBL2 haplotypes among 622 HIV-positive Zimbabwean mothers and their children aged 9-18 months old, in relation to the HIV-1 vertical transmission risk. The median age of the mothers was 30 (26-34, interquartile range [IQR]) years, and the babies' median age was 13 (11-15, IQR) months old at the time of enrollment. From the sample of 622 mothers who were HIV-1 infected, 574 babies were HIV negative and 48 were HIV-1-positive babies, giving a transmission rate of 7.7%. MBL2 normal structural allele A and variants B (codon 5 A>G), C (codon 57 A>G), and promoter region SNPs -550(H/L) and -221(X/Y) were detected. Prevalence of haplotype-predicted MBL deficiency was 34% among the mothers and 32% among the children. We found no association between maternal MBL2 deficiency and HIV-1 transmission to their children. We found no difference in the distribution of HIV-1 infected and uninfected children between the MBL2 genotypes of the mothers and those of the children. Taken together, the present study in a large sample of mother-infant pairs in Zimbabwe adds to the emerging literature and the hypothesis that MBL2 variation as predicted by haplotypes does not influence the vertical transmission risk for HIV. Research from other populations from the African continent is called for to test this hypothesis further.

Non-Uptake of HIV Testing in Children at Risk in Two Urban and Rural Settings in Zambia: A Mixed-Methods Study

This article investigates reasons why children who were considered at risk of HIV were not taken for HIV testing by their caregivers. Qualitative and quantitative data collected in Zambia from 2010–11 revealed that twelve percent of caregivers who stated that they had been suspecting an HIV infection in a child in their custody had not had the child tested. Fears of negative reactions from the family were the most often stated reason for not testing a child. Experience of pre-existing conflicts between the couple or within the family (aOR 1.35, 95% CI 1.00–1.82) and observed stigmatisation of seropositive children in one’s own neighbourhood (aOR 1.69, 95% CI1.20–2.39) showed significant associations for not testing a child perceived at risk of HIV. Although services for HIV testing and treatment of children have been made available through national policies and programmes, some women and children were denied access leading to delayed diagnosis and treatment–not on the side of the health system, but on the household level. Social norms, such as assigning the male household head the power to decide over the use of healthcare services by his wife and children, jeopardize women’s bargaining power to claim their rights to healthcare, especially in a conflict-affected relationship. Social norms and customary and statutory regulations that disadvantage women and their children must be addressed at every level–including the community and household–in order to effectively decrease barriers to HIV related care.

Health-care providers' experiences with opt-out HIV testing: a systematic review

HIV is now a manageable chronic disease with a good prognosis, but early detection and referral for treatment are vital. In opt-out HIV testing, patients are informed that they will be tested unless they decline. This qualitative systematic review explored the experiences, attitudes, barriers, and facilitators of opt-out HIV testing from a health-care provider (HCP) perspective. Four articles were included in the synthesis and reported on findings from approximately 70 participants, representing diverse geographical regions and a range of human development status and HIV prevalence. Two synthesized findings emerged: HCP attitudes and systems. The first synthesized finding encompassed HCP decision-making attitudes about who and when to test for HIV. It also included the assumptions the HCPs made about patient consequences. The second synthesized finding related to systems. System-related barriers to opt-out HIV testing included lack of time, resources, and adequate training. System-related facilitators included integration into standard practice, support of the medical setting, and electronic reminders. A common attitude among HCPs was the outdated notion that HIV is a terrible disease that equates to certain death. Some HCPs stated that offering the HIV test implied that the patient had engaged in immoral behaviour, which could lead to stigma or disengagement with health services. This paternalism diminished patient autonomy, because patients who were excluded from opt-out HIV testing could have benefited from it. One study highlighted the positive aspects of opt-out HIV testing, in which participants underscored the professional satisfaction that arose from making an HIV diagnosis, particularly when marginalized patients could be connected to treatment and social services. Recommendations for opt-out HIV testing should be disseminated to HCPs in a broad range of settings. Implementation of system-related factors such as electronic reminders and care coordination procedures should be considered, and a social-justice commitment among HCPs should be encouraged.

Implementation and Operational Research: Uptake of Services and Behaviors in the Prevention of Mother-to-Child HIV Transmission Cascade in Zimbabwe

OBJECTIVE

To examine the uptake of services and behaviors in the prevention of mother-to-child HIV transmission (PMTCT) cascade in Zimbabwe and to determine factors associated with MTCT and maternal antiretroviral therapy (ART) or antiretroviral (ARV) prophylaxis.

DESIGN

Analysis of cross-sectional data from mother-infant pairs.

METHODS

We analyzed baseline data collected in 2012 as part of the impact evaluation of Zimbabwe's Accelerated National PMTCT Program. Using multistage cluster sampling, eligible mother-infant pairs were randomly sampled from the catchment areas of 157 facilities in 5 provinces, tested for HIV infection, and interviewed about PMTCT service utilization.

RESULTS

Of 8800 women, 94% attended ≥ 1 antenatal care visit, 92% knew their HIV serostatus during pregnancy, 77% delivered in a health facility, and 92% attended the 6-8 week postnatal visit. Among 1075 (12%) HIV-infected women, 59% reported ART/ARV prophylaxis and 63% of their HIV-exposed infants received ARV prophylaxis. Among HIV-exposed infants, maternal receipt of ART/ARV prophylaxis was protective against MTCT [adjusted prevalence ratio (PR(a)): 0.41, 95% confidence interval (CI): 0.23 to 0.74]. Factors associated with receipt of maternal ART/ARV prophylaxis included ≥ 4 antenatal care visits (PR(a): 1.18, 95% CI: 1.01 to 1.38), institutional delivery (PR(a): 1.31, 95% CI: 1.13 to 1.52), and disclosure of serostatus (PRa: 1.30, 95% CI: 1.12 to 1.49).

CONCLUSIONS

These data from women in the community indicate gaps in the PMTCT cascade before the accelerated program, which may have been missed by examination of health facility data alone. These gaps were especially noteworthy for services targeted specifically to HIV-infected women and their infants, such as maternal and infant ART/ARV prophylaxis.

Burden of HIV infection among children aged 18 months to 14 years in Kenya: results from a nationally representative population-based cross-sectional survey

BACKGROUND

In Kenya, mathematical models estimate that there are approximately 220,000 children aged less than 15 years infected with HIV. We analyzed data from the second Kenya AIDS Indicator Survey (KAIS 2012) to estimate the prevalence of HIV infection among children aged 18 months to 14 years.

METHODS

KAIS 2012 was a nationally representative 2-stage cluster sample household survey. We studied children aged 18 months to 14 years whose parents or guardians answered questions pertaining to their children by interview. Blood specimens were collected for HIV serology and viral load measurement.

RESULTS

We identified 5162 children who were eligible for the study. Blood was obtained for 3681 (71.3%) children. Among child participants, 16.4% had been tested for HIV infection in the past, and among children with parents or guardians who self-reported HIV-positive status, 52.9% had been tested for HIV infection. Twenty-eight (0.9%) children tested HIV-positive in the survey. Of these, 11 had been previously diagnosed with HIV infection before the survey. All 11 children were in HIV care and receiving cotrimoxazole; 8 were on antiretorivral therapy (ART). Among those on ART, 4 were virologically suppressed.

CONCLUSIONS

HIV causes a substantial burden of disease in the Kenyan pediatric population. Although most children who had been diagnosed with HIV before the survey were engaged in care and treatment, they represented less than half of HIV-infected children identified in the survey. Future efforts should focus on identifying infected children and getting them into care and on suppressive ART as early as possible.