Older children and adolescents surviving with vertically acquired HIV infection

Prevalence, socio-demographics and service use determinants associated with disclosure of HIV/AIDS status to infected children: a systematic review and meta-analysis by 1985-2021

BACKGROUND

Human immunodeficiency virus (HIV)/Acquired Immune Deficiency Syndrome (AIDS) is a public health issue of global importance. To our knowledge, no previous meta-analysis documenting the prevalence, socio-demographic, and service use determinants associated with HIV/AIDS disclosure to infected children has been conducted. The present study aimed to determine the prevalence, socio-demographics and service use determinants associated with the disclosure of HIV/AIDS status to infected children.

METHODS

Studies in English published between 01 January 1985 and 01 November 2021, and available on PubMed, Scopus, Web of Science, and Cochrane electronic databases were searched. After reviewing for study duplicates, the full-text of selected articles were assessed for eligibility using Population, Intervention, Comparator, Outcomes (PICO) criteria. We used fixed and random-effects meta-analysis models to estimate the pooled prevalence, pooled odds ratio (OR), and 95% confidence intervals.

RESULTS

After article duplicates were excluded, assessments of abstracts were completed, and full-text papers evaluated, 37 studies were included in this meta-analysis. The prevalence of the disclosure of HIV status to children was measured to be 41% in this research. The odds that a child of 10 years and older is informed that they are HIV-positive is 3.01 time the odds that younger children are informed. Those children who had primary or lower schooling level were 2.41 times more likely to be informed of their HIV-positive status than children with higher levels of schooling. Children who had a non-biological parents were 3.17 times more likely to have been disclose being HIV-positive; social support (OR = 8.29, 95%CI = 2.34, 29.42), children who had higher levels of social supports were 8.29 times more likely to disclose HIV-positive; the primary educational level of caregivers (OR = 2.03, 95%CI = 1.43, 2.89), respondents who had caregivers with primary education level were 2.03 times more likely to disclose HIV-positive; antiretroviral treatment (ART) adherence (OR = 2.59, 95%CI = 1.96, 3.42), participants who adhered to ART were 2.59 times more likely to disclose HIV-positive and hospital follow-up (OR = 2.82, 95%CI = 1.85, 4.29), those who had hospital follow-up were 2.82 times more likely to disclose HIV-positive; were all significantly associated with the disclosure of HIV/AIDS status to infected children.

CONCLUSION

Such data are of importance for healthcare pediatrics HIV care professionals. Facilitating HIV diagnosis and disclosure to the infected children and ensuring access to HIV treatment will likely prevent secondary HIV transmission. Healthcare professionals are expected to provide age-appropriate counseling services to this population.

Antiretroviral therapy outcomes among adolescents and young adults in a Tertiary hospital in Kenya

BACKGROUND

Limited data is available on the treatment outcomes of HIV infected adolescents and young adults (AYA) in sub-Saharan Africa. HIV-infected adolescents and young adults (AYA) are at high risk of developing antiretroviral treatment failure.

OBJECTIVE

To determine the clinical, immunological and virologic outcomes of AYA at a tertiary hospital in Kenya.

METHODOLOGY

A longitudinal study was conducted among AYA age 10-24 years attending Kenyatta National Hospital comprehensive care center. Clinical data was abstracted from electronic medical records for study participants with at least 6 months of follow-up using a structured data abstraction sheet.

RESULTS

A total of 250 AYA age 10 to 24 years were included. The median age was 16 years. The median CD4 cell count was 650.6 cells/mm3 (IQR 350.7-884.0). More than half (60.6%) of AYA had a CD4 cell count higher than 500 cells/mm3. Overall, 76.9% of AYA had achieved viral suppression (viral load <1000 copies/ml). There was a significant increase in virologic failure with higher age and late adolescents and young adults were more likely to have a viral load > 1000 copies/ml p<0.012.

CONCLUSION

The overall virologic suppression in this cohort of AYA was sub-optimal. Both immunological and virologic outcomes were worse among late adolescents (18-19 years) and young adults (20-24 years).

HIV diagnosis disclosure to infected children and adolescents; challenges of family caregivers in the Central Region of Ghana

BACKGROUND

Disclosure of Human Immunodeficiency Virus (HIV) to infected older children and adolescents is essential for both personal health maintenance and HIV prevention within the larger population. Non-disclosure of HIV status has been identified as one of the potential barriers to optimum adherence especially in children and adolescents. Like many other countries in the SSA region, Ghana has significant number of children and adolescents infected by HIV, who have increased survival times, due to increased access to ART. However, both family caregivers and healthcare workers face an array of challenges with the disclosure process, including the timing, what information about the child's HIV status should be shared with him/her and how to go about it. The aim of the study was to identify family caregiver factors associated with non-disclosure of HIV status to infected children and adolescents accessing Antiretroviral Therapy (ART) at the three main ART sites within the Central Region of Ghana.

METHODS

A quantitative analytical survey was conducted among 103 family caregivers of HIV infected children (aged 6-17 years) assessing ART services in the Central Region of Ghana. Data were analyzed using SSPS version 21.

RESULTS

The age range of caregivers was 20-69 years. The study found a low disclosure rate (23.3%) among caregivers. Majority of the caregivers (80.6%) lacked knowledge on the process of disclosure (how and what to tell child), and majority (64%) also had never received guidance about the disclosure process from their healthcare providers. The main barriers to disclosure were caregiver lack of knowledge regarding the disclosure process and when to disclose, the fear of child's reaction, and fear of stigmatization and associated negative social consequences.

CONCLUSION

These findings suggest a lesser involvement of health care providers in preparing caregivers for the disclosure process. This therefore highlight the need for the National HIV/AIDS/STI Control Program to strengthen the involvement and training of healthcare providers in HIV diagnosis disclosure to infected children, based on context-specific policy guidelines informed by the WHO recommendations.

Health outcomes and the transition experience of HIV-infected adolescents after transfer to adult care in Québec, Canada

Background

Little is known on outcomes after transition to adult care among adolescents with perinatal HIV infection. Though there is data from other chronic pediatric diseases suggesting increased morbidity and mortality following transfer to adult care, this has not well been studied among the first wave of survivors of perinatal HIV infection. The primary objective of this study was to determine outcomes after transition to adult care among a cohort of HIV-infected adolescents in Québec, Canada. Secondary objectives were to document participant experiences with the transition process, identify barriers to successful transition, and potential changes to improve the transition process.

Methods

Clinic records were reviewed to identify all perinatally-infected youth who transitioned from the Centre Maternel et Infantile sur le Sida pediatric HIV clinic (Montreal) at age 18 to an adult care provider between 1999 and 2012. Transitioned patients were contacted using last available patient or parental listed phone number on hospital record, internet based telephone directory, or social media. A standardized questionnaire was administered by telephone or in-person interview, and copies of current medical records obtained from treating physicians.

Results

Forty-five patients were transferred between 1999 and 2012, among whom 25 consented to the study, eight were lost to follow-up, eight refused participation, and four were deceased. Overall 76 % of patients remained engaged in care, defined by at least one physician visit within 6 months of the interview. Over 50 % reported difficulty with adherence to their current drug regimens. At one-year post-transfer, there was a decrease in the proportion of patients with CD4 count >500 cells/mm³ from 64 to 29 %, and a statistically significant decrease in absolute CD4 count (mean 370 vs 524 cells/mm³, p = 0.04.). The majority (92 %) of participants felt that 18 was too young an age to transfer to adult care, and provided suggestions for improving the transition process.

Conclusions

This group of perinatally-infected youth remained engaged in care after transition, however difficulties with adherence and assuming responsibility for their own care were identified as issues in their post-transition care. The high rate of mortality among them and the changes to their health status post-transition suggest that further work is necessary to document the health outcomes of this group in larger, more diverse cohort settings.

'You're HIV positive': perinatally infected young people's accounts of the critical moment of finding out their diagnosis

This paper presents the recollections of 28 young people (15-24 years old) of formally learning that they had acquired HIV perinatally. Prior to the naming of their illness, many participants had experienced repeated biographical disruption through ill health and other major life events. However, the critical moment in their HIV trajectory was when they were told their diagnosis. How information about their diagnosis was managed previously, often disguised, combined with the ways in which the disclosure process was handled communicated to young people the inherent dangers and stigma associated with revealing their HIV status to others. The formal disclosure occasion also signalled to most participants the route of their HIV infection as well as previously hidden health information about family members. Although some young people discovered their diagnosis in an unplanned way, most described the disclosure of their HIV status as a structured event, usually a formal telling with those in authority naming the condition. This even applied to those for whom the discovery that they were HIV positive was a process that happened over time. This paper describes their memories of the disclosure event which for half took place over the age of 12. They received messages conveying the imperative to keep this information a secret to avoid being stigmatised and to protect themselves and their families. They described subsequent feelings of isolation and distress. Policy-makers and clinicians need to consider the WHO disclosure recommendations whilst taking into account individual circumstances.

Caregivers' Barriers to Disclosing the HIV Diagnosis to Infected Children on Antiretroviral Therapy in a Resource-Limited District in South Africa: A Grounded Theory Study

We used a grounded theory approach to explore how a sample of caregivers of children on antiretroviral treatment (ART) experience HIV disclosure to their infected children. This paper explores caregivers' barriers to disclosing HIV to infected children. Caregivers of children aged 6-13 years who were receiving ART participated in four focus-group interviews. Three main themes, caregiver readiness to tell, right time to tell, and the context of disclosure, emerged. Disclosure was delayed because caregivers had to first deal with personal fears which influenced their readiness to disclose; disclosure was also delayed because caregivers did not know how to tell. Caregivers lacked disclosure skills because they had not been trained on how to tell their children about their diagnosis, on how to talk to their children about HIV, and on how to deal with a child who reacts negatively to the disclosure. Caregivers feared that the child might tell others about the diagnosis and would be discriminated and socially rejected and that children would live in fear of death and dying. Health care providers have a critical role to play in HIV disclosure to infected children, considering the caregivers' expressed desire to be trained and prepared for the disclosure.

Pregnancies in perinatally HIV-infected young women and implications for care and service programs

A cohort of individuals with perinatally acquired HIV is maturing into reproductive age. This study describes pregnancy incidence and outcomes among females ages 15-25 with perinatally acquired HIV infection receiving comprehensive family-centered services in New York City. Chart reviews from 1998-2006 indicated 33 pregnancies among 96 young women. Twenty-six percent of the cohort experienced a pregnancy during the study period, with a rate of 125 per 1,000 person years in 2006. The age of first pregnancy ranged from 15-25; 24% were younger than 18. Fourteen pregnancies (42%) were terminated. Nineteen pregnancies resulted in live births, and all infants tested negative for HIV. The success of preventing vertical HIV transmission is attributed to interdisciplinary family-centered services, including reproductive health education, family planning, obstetric-gynecologic services and psychosocial support. Such approach is most likely to be effective at promoting healthy reproductive decisions and reducing morbidity in perinatally infected mothers and their children.

Characteristics of HIV infected adolescents in Latin America: results from the NISDI pediatric study

OBJECTIVE

HIV-infected adolescents are a heterogeneous population; source of infection, immunodeficiency severity and antiretroviral (ARV) experience vary. Here, we describe youth followed in an observational study at Latin American sites of the NICHD International Site Development Initiative (NISDI).

METHODS

The NISDI pediatric protocol is an ongoing prospective cohort study that collects demographic, clinical, immunologic, virologic and medication data. Youth were enrolled at 15 sites in Brazil, Argentina and Mexico between 2002 and 2006. HIV-infected subjects aged 12-21 years at the time of enrollment were analyzed.

RESULTS

Data from 120 HIV-infected youth were analyzed. Sixty-nine (58%) had acquired HIV through vertical transmission (VT); 51(42%) via horizontal transmission (HT). Twenty-eight percent of the VT group were not diagnosed until they were ≥10 years of age. Ninety-one percent of the VT group and 46% of the HT were receiving ARV at enrollment. Modes of HT included sexual (ST), blood product transfusion (BPT) and unknown (U). Severe immunodeficiency was frequent (21%) in the ST group. Low BMI was frequent in the VT and BPT sub-groups. Utilization of HAART increased over the course of the study, but viral suppression was present in only 38% of the VT group and 37% of the HT group at study end.

CONCLUSIONS

This cohort of HIV-infected adolescents in Latin America displayed a diverse epidemiologic pattern. Care providers must be prepared to address the diverse needs and challenges of this population. The levels of virologic suppression achieved were inadequate. Further research into appropriate interventions for this population is urgently needed.

Paediatric HIV and elimination of mother-to-child transmission of HIV in the ASEAN region: a call to action

Recent achievements in scaling up paediatric antiretroviral therapy (ART) have changed the life of children living with HIV, who now stay healthy and live longer lives. However, as it becomes more of a chronic infection, a range of new problems have begun to arise. These include the disclosure of HIV serostatus to children, adherence to ART, long-term toxicities of antiretroviral drugs and their sexual and reproductive health, which are posing significant challenges to the existing health systems caring for children with HIV with limited resources, experiences and capacities. While intensified efforts and actions to improve care and treatment for these children are needed, it is crucial to accelerate the prevention of mother-to-child transmission (PMTCT) of HIV, which is the main cause of paediatric HIV in the ASEAN region so as to eliminate the fundamental cause of the problem. This report argues that given over 70% of women have access to at least one antenatal care visit in the region and acceptance of HIV testing after receiving counselling on PMTCT could be as high as 90%, there is an opportunity to strengthen PMTCT services and eventually eliminate new paediatric HIV infections in the ASEAN countries.

Factors associated with HIV/AIDS diagnostic disclosure to HIV infected children receiving HAART: a multi-center study in Addis Ababa, Ethiopia

BACKGROUND

Diagnostic disclosure of HIV/AIDS to a child is becoming an increasingly common issue in clinical practice. Nevertheless, some parents and health care professionals are reluctant to inform children about their HIV infection status. The objective of this study was to identify the proportion of children who have knowledge of their serostatus and factors associated with disclosure in HIV-infected children receiving HAART in Addis Ababa, Ethiopia.

METHODS

A cross-sectional study was conducted in five hospitals in Addis Ababa from February 18, 2008-April 28, 2008. The study populations were parents/caretakers and children living with HIV/AIDS who were receiving Highly Active Antiretroviral Therapy (HAART) in selected hospitals in Addis Ababa. Univariate and multivariate logistic regression analysis were carried out using SPSS 12.0.1 statistical software.

RESULTS

A total of 390 children/caretaker pairs were included in the study. Two hundred forty three children (62.3%) were between 6-9 years of age. HIV/AIDS status was known by 68 (17.4%) children, 93 (29%) caretakers reported knowing the child's serostatus two years prior to our survey, 180 (46.2%) respondents said that the child should be told about his/her HIV/AIDS status when he/she is older than 14 years of age. Children less than 9 years of age and those living with educated caregivers are less likely to know their results than their counterparts. Children referred from hospital's in-patient ward before attending the HIV clinic and private clinic were more likely to know their results than those from community clinic.

CONCLUSION

The proportion of disclosure of HIV/AIDS diagnosis to HIV-infected children is low. Strengthening referral linkage and health education tailored to educated caregivers are recommended to increase the rate of disclosure.

Development of a protocol for transitioning adolescents with HIV infection to adult care

As HIV infection in childhood and adolescence has evolved from a terminal to a chronic illness, new challenges are posed for both medical and psychosocial teams serving these clients. Although specialized programs for transition to adult care have been reported for persons with cystic fibrosis, diabetes mellitus, sickle cell disease, and other chronic illnesses, there are few published reports of integral programs designed to transition adolescents who were infected with HIV during the adolescent period to adult HIV services. This article describes a model of transition from a University-based, federally funded adolescent HIV program to adult HIV services, addresses barriers to transition, and provides strategies and recommendations for improving adherence to the transition process.

Impact of HAART on survival, weight gain and resting energy expenditure in HIV-1-infected children in India

BACKGROUND

In resource-limited countries, use of highly active antiretroviral therapy (HAART) in HIV-infected children is still poorly documented in terms of impact on survival, the immune system and growth. Since the availability of HAART, nutrition of HIV-infected children has been neglected.

AIM

To evaluate the effect of HAART on survival and immune response in HIV-infected children and to investigate the response to nutritional support.

METHODS

In December, 2002 a cohort study was carried out on vertically HIV-1-infected children and was observed longitudinally for CD4(+) T-cell count, antiretroviral treatment and weight until 31 December 2007. Z-scores were calculated for CD4(+) T-cell count to account for age-related differences. Nutritional supplementation was given to all the HIV-infected children and resting energy expenditure (REE) was calculated. Mortality rates were also calculated for the perinatally infected children followed up at the HIV clinic.

RESULTS

A total of 180 children were assessed, 100 (56%) of whom were on HAART. Baseline body mass index was lower in the HAART group (p<0.05). Median duration of survival from date of diagnosis was 15.1 years. Those who received HAART survived significantly longer. The average annual mortality rate was 1.2% during 2005-2006. During HAART, a CD4 Z-score increase of 1 SD was associated with a 0.35 increase in body weight Z-score (p<0.001). The increase in daily energy intake owing to nutritional supplementation was associated with increase in weight Z-score in both the no-HAART and HAART group. REE was independently associated with weight change in the models which tested association of changes in CD4(+) T-cell Z-score and daily REE/kg body weight with changes in body weight Z-score in both the HAART and no-HAART group and then separately in the two groups (p<0.001).

CONCLUSION

Survival rates of children improved which correlated with an increase in CD4(+) T-cell count concurrent with the expanded use of HAART. HAART had a positive effect on growth in HIV-1-infected children. Nutrition supplementation improved the health of children in both the no-HAART and HAART groups.

Poor cognitive functioning of school-aged children in thailand with perinatally acquired HIV infection taking antiretroviral therapy

Neurocognitive outcome is an essential aspect of treatment for HIV-infected children. This study is aimed at assessing cognitive functioning in school-aged HIV-infected children and the change after receiving antiretroviral therapy (ART). We conducted a prospective cohort study of HIV-infected Thai children from 6-12 years of age compared with HIV-affected (children of HIV-positive mothers who were not infected with HIV), and normal control groups. Wechsler Intelligence Scale for Children-III (WISC-III) was administered at enrollment and 30 months of follow-up. Semistructured interviews of primary caregivers were performed. From April to October 2003, 121 children were enrolled; 39 HIV-infected, 40 HIV-affected, and 42 control children with a median age of 9.3 years. The HIV-infected group had a mean (standard deviation [SD]) CD4 percentage of 13.8% (5.3), 87% of whom had been receiving ART for a median of 35 weeks. At the first cognitive assessment, the mean (SD) of full-scale intelligence quotient (FSIQ) was 79 (13) and 88 (10) among HIV-infected and HIV-affected children, which was statistically lower than that of the control group at 96 (13; p < 0.01). The proportion of children with average intelligence level (FSIQ > 90) among 3 groups were 21%, 49%, and 76%, respectively (p < 0.01). At 30 months of follow-up, the HIV-infected group had a mean (SD) CD4 percentage of 25.6% (5.6); 77% had undetectable viral load. The mean (SD) FSIQ of children among three groups were 75 (12), 85 (12), and 91 (12), respectively. Compared with the baseline assessment, the verbal scale score significantly decreased in all groups, including the controls, whereas the performance scales did not change. In conclusion, school-aged HIV-infected children have lower cognitive function than HIV-affected and normal children. Cognitive function was not improved after receiving ART. Further study to address whether early ART can preserve cognitive functioning among HIV-infected children should be explored.

Impact of disclosure of HIV infection on health-related quality of life among children and adolescents with HIV infection

BACKGROUND

Little is known concerning the impact of HIV status disclosure on quality of life, leaving clinicians and families to rely on research of children with other terminal illnesses.

OBJECTIVES

The purpose of this work was to examine the impact of HIV disclosure on pediatric quality of life and to describe the distribution of age at disclosure in a perinatally infected pediatric population. METHODS. A longitudinal analysis was conducted of perinatally HIV-infected youth >/=5 years of age enrolled in a prospective cohort study, Pediatric AIDS Clinical Trials Group 219C, with >/=1 study visit before and after HIV disclosure. Age-specific quality-of-life instruments were completed by primary caregivers at routine study visits. The distribution of age at disclosure was summarized. Six quality-of-life domains were assessed, including general health perception, symptom distress, psychological status, health care utilization, physical functioning, and social/role functioning. For each domain, mixed-effects models were fit to estimate the effect of disclosure on quality of life.

RESULTS

A total of 395 children with 2423 study visits were analyzed (1317 predisclosure visits and 1106 postdisclosure visits). The median age at disclosure was estimated to be 11 years. Older age at disclosure was associated with earlier year of birth. Mean domain scores were not significantly different at the last undisclosed visit compared with the first disclosed visit, with the exception of general health perception. When all of the visits were considered, 5 of 6 mean domain scores were lower after disclosure, although the differences were not significant. In mixed-effects models, disclosure did not significantly impact quality of life for any domain.

CONCLUSIONS

Age at disclosure decreased significantly over time. There were no statistically significant differences between predisclosure and postdisclosure quality of life; therefore, disclosure should be encouraged at an appropriate time.

Perinatal HIV transmission and the cost-effectiveness of screening at 14 weeks gestation, at the onset of labour and the rapid testing of infants

BACKGROUND

Preventing HIV transmission is a worldwide public health issue. Vertical transmission of HIV from a mother can be prevented with diagnosis and treatment, but screening incurs cost. The U.S. Virgin Islands follows the mainland policy on antenatal screening for HIV even though HIV prevalence is higher and rates of antenatal care are lower. This leads to many cases of vertically transmitted HIV. A better policy is required for the U.S. Virgin Islands.

METHODS

The objective of this research was to estimate the cost-effectiveness of relevant HIV screening strategies for the antenatal population in the U.S. Virgin Islands. An economic model was used to evaluate the incremental costs and incremental health benefits of nine different combinations of perinatal HIV screening strategies as compared to existing practice from a societal perspective. Three opportunities for screening were considered in isolation and in combination: by 14 weeks gestation, at the onset of labor, or of the infant after birth. The main outcome measure was the cost per life year gained (LYG).

RESULTS

Results indicate that all strategies would produce benefits and save costs. Universal screening by 14 weeks gestation and screening the infant after birth is the recommended strategy, with cost savings of $1,122,787 and health benefits of 310 LYG. Limitations include the limited research on the variations in screening acceptance of screening based on specimen sample, race and economic status. The benefits of screening after 14 weeks gestation but before the onset of labor were also not addressed.

CONCLUSION

This study highlights the benefits of offering screening at different opportunities and repeat screening and raises the question of generalizing these results to other countries with similar characteristics.

Growing up: perspectives of children, families and service providers regarding the needs of older children with perinatally-acquired HIV

Children with perinatally-acquired HIV are living into adolescence and adulthood. As this is a relatively new phenomenon, there is a paucity of research highlighting the complex issues that arise for these children. This qualitative case-study examines the needs of a select group of older children (9-16 years old) with perinatally-acquired HIV in the province of British Columbia, Canada through focus groups and interviews conducted with ten HIV-infected children, 11 family members and 11 service providers. The needs of this population are diverse, reflecting its heterogeneity. However, participants consistently highlighted issues of stigma, sexual health and mental health as major areas of current and future concern. Continued support, education and future planning in these areas are necessary for older HIV-infected children as they transition out of childhood.

Adherence to high activity antiretrovial therapy (HAART) in pediatric patients infected with HIV: issues and interventions

It has been proven that HAART is effective in suppressing human immunodeficiency virus (HIV) replication, decreasing morbidity and mortality associated with HIV and improving quality of life in adults as well as children infected with HIV. However, drugs don't work in patients who don't take them and in the management of HIV infection it is now well established that optimum adherence to HAART is critical to successful outcome of patients receiving therapy. At least 95% adherence to HAART is optimum and studies have shown that 50%. Important factors that influence adherence to HAART such as regimen related complexities, patient/family related issues and factors related to healthcare delivery system makes adherence to HAART challenging. Although numerous interventions to improve adherence have been investigated in developed as well as developing countries, majority of work in this area is focused on adherence in adults and data in children is limited. Therefore, in order to facilitate adherence and improve outcome of HAART in pediatric population, it is necessary to have a deep understanding of the factors influencing adherence and interventions that can improve adherence in children.

Vaccines to prevent transmission of HIV-1 via breastmilk: scientific and logistical priorities

Mother-to-child transmission (MTCT) of HIV-1 is the major mode of paediatric infection. The rapidly increasing incidence of MTCT worldwide has resulted in an urgent need for preventive strategies. Antiretroviral regimens can prevent intrapartum HIV transmission; however, these regimens do not prevent HIV transmission through breastfeeding. Furthermore, children who escape MTCT are again at risk of infection when they become sexually active as adolescents. An infant vaccine regimen, begun at birth, would hence be a more attractive strategy and might also provide the basis for lifetime protection. Unique features of MTCT and paediatric HIV disease could be helpful in understanding correlates of immune protection and could facilitate rapid assessment of vaccine efficacy. Thus, there is compelling rationale to develop safe, effective HIV vaccines for use in infants and children. Here, we discuss the scientific and logistical challenges for the development of paediatric HIV vaccines; available vaccines and completed or planned paediatric vaccine trials are also discussed.

Challenges to re-enrolling perinatally HIV-infected and HIV-exposed but uninfected children into a prospective cohort study: strategies for locating and recruiting hard-to-reach families

Children infected with the human immunodeficiency virus (HIV) are living longer. Studies aimed at understanding the health and well-being of these children as they age into adolescence are enhanced by research designs that include appropriate comparison groups. HIV-exposed but uninfected children are one such comparison group; however, recruitment of this comparison group is challenging because uninfected children may no longer be followed at tertiary care centres, and some may be in foster care or no longer living with their biological parents. This paper describes the recruitment methods, sampling plan, and factors associated with enrolling perinatally HIV-infected children and a comparison group of HIV-exposed but uninfected children into the HIV Follow-up Of Perinatally Exposed Children (PACTS-HOPE) prospective cohort study. The source population consists of HIV-infected and uninfected children originally enrolled in the Perinatal AIDS Collaborative Transmission Study (PACTS). Recruitment took place at paediatric HIV clinics in four US locations between March 2001 and March 2003. A total of 182 HIV-infected and 180 uninfected children were enrolled. Enrolment of uninfected children was much harder than that of infected children because the former often could not be located. After adjusting for site and birth-year category, uninfected children born to white mothers were significantly less likely to be enrolled (P < 0.01). There was a trend for infected and uninfected children of mothers with a history of injection drug use to enrol at lower rates. Although recruitment of the uninfected comparison group was challenging, it was nevertheless facilitated by hierarchical recruitment techniques, involvement of family networks, and continuity of study staff. The PACTS-HOPE cohort will provide opportunities for future research aimed at understanding the unique effects of HIV on the well-being of HIV-infected children.

Health-related quality of life of HIV-infected children on complex antiretroviral therapy at home

The study describes quality of life as perceived by parents and measured by the Child Health Questionnaire (CHQ-28) for a convenience sample of 33 HIV-infected children age 5 to 18 years cared for at home on complex antiretroviral drug regimens. When compared with normative data on healthy U.S. children, parent reports for the HIV-infected children did not differ significantly on the following CHQ concepts: role/social related to emotional, behavioral or physical problems; bodily pain; behavior; mental health; self-esteem; impact on parental time; family activities; and family cohesion. Parents perceived their children to be functioning at a level significantly lower than the norm in general health (t -6.47, p = .000), physical functioning (t -2.37, p = .024), and physical summary (t -3.80, p = .001). Parental impact-emotional was impressively higher than the norm (t -3.74, p = .001). Differences were independent of gender, primary language, ethnicity, and Centers for Disease Control and Prevention clinical classifications for pediatric HIV disease.

Crianças e adolescentes vivendo com HIV/Aids e suas famílias: aspectos psicossociais e enfrentamento

O estudo teve por objetivos: descrever aspectos sociodemográficos, médico-clínicos e da organização familiar de crianças e adolescentes soropositivos infectados pela transmissão vertical; descrever dificuldades e estressores percebidos pelos cuidadores sobre aspectos psicossociais e do tratamento para o HIV e analisar estratégias de enfrentamento utilizadas. Participaram 43 cuidadores primários, a maioria (N = 24) mães soropositivas; a idade variou de 18 a 68 anos. Os instrumentos incluíram entrevista semi-estruturada e a Escala Modos de Enfrentamento de Problemas (EMEP). Os resultados revelaram a presença de dificuldades em áreas como adesão ao tratamento, revelação do diagnóstico para a criança/adolescente e informação sobre o diagnóstico na escola. Quanto às estratégias de enfrentamento, houve predomínio de busca de práticas religiosas/pensamento fantasioso e focalização no problema, segundo escores da EMEP. O estudo indica a necessidade das equipes de saúde se qualificarem para atendimento a demandas psicossociais, visando atenção integral e interdisciplinar a familiares e crianças/adolescentes vivendo com HIV/aids.

Facilitating adherence to highly active antiretroviral therapy in children with HIV infection: what are the issues and what can be done?

Treatment of HIV infection with highly active antiretroviral therapy (HAART) requires sustained adherence to treatment to maintain efficacy. In pediatric patients, adherence to HAART represents a significant challenge for treated children and for their caregivers and healthcare providers. Many factors can affect adherence to HAART including: (i) factors related to the patient and his/her family; (ii) factors related to the drug/medication; and (iii) factors related to the healthcare system. Different strategies can be employed to tackle the specific obstacles identified in these three groups, and thus to facilitate adherence. Among the key interventions centered on the patient and his/her family are the tailoring of the HAART regimen to the daily activities of the child and his/her family, and the implementation of an intensive education program on adherence for the child and the caregiver, prior to starting the treatment. Specific medication-related problems (depending on drug pharmacokinetic and pharmacodynamic properties, taste and palatability, food interactions, etc.) exist; such problems can not be solved solely by clinicians or by families. Greater commitment of the pharmaceutical industry is needed, and innovative solutions have to be identified by clinicians in partnership with drug manufacturers. Furthermore, the development of an 'adherence strategy/program' can be recommended to all institutions working in pediatric HIV infection. Most of the necessary interventions to be included in such programs can be easily implemented, but they require trained and committed staff (and institutions), and time to be spent with patients and their caregivers.

Transition from paediatric to adult services: experiences of HIV-positive adolescents

In this small, preliminary study, semi-structured interviews were conducted with seven adolescents to explore their experiences of transition between paediatric and adult HIV care services. In general, the transition process established between the two health care units was considered by most participants to be beneficial, particularly the introduction of adult service providers early on in the transition preparation period. Four of the participants found the transition 'easy', whereas three had concerns that possibly delayed their transition, including coordination of haemophiliac and HIV care and fear of an adult environment. Individuals who had experienced little input into their care decisions during their paediatric appointments were more positive and ready for transition than those who had been more involved. Confidence and attachment with paediatric staff generally involved those who had been more involved in their care decision making. On transition, some of the participants were not prepared for the predominantly gay male population and were disappointed in not seeing other adolescents. The benefits of transition included the sense of independence, the shift in responsibility to the individual and general satisfaction in being treated as an adult. For those with strong paediatric staff rapport, a sense of loss in these relationships was expressed. Participants were forthcoming in suggesting recommendations for future transitions that are discussed.

Assessing medication adherence in adolescents with HIV when electronic monitoring is not feasible

The purpose of this study was to compare and contrast three different methods for measuring self-reported antiretroviral medication adherence, correlate individual reports of adherence with measures of viral load, and identify the degree of concordance among self-reported medication adherence tools. Thirty-five adolescents between the ages of 11 and 21 years (mean age, 15.4) enrolled in National Cancer Institute (NCI) HIV primary treatment protocols participated in the study. Adherence approaches consisted of a clinical nurse rating (CNR), a Retrospective Self-Report Interview (RSI; using two different scoring criteria), and a 24-hour recall phone interview (Daily Phone Diary [DPD]). These were chosen because of their potential to be integrated within a clinical setting. Reported perfect adherence to protease inhibitors ranged from 31% to 54% depending on the measure used. There was little agreement between measures. Teenagers who reported perfect protease inhibitor adherence on both RSI-doses taken and DPD were approximately 5 times more likely to have a viral load less than 10,000 copies per milliliter. Advantages and disadvantages of each adherence method and clinical and research recommendations are discussed.