Rates and Determinants of Retention on ART Among Orphans and Vulnerable Children Living With HIV in Tanzania.

Despite the global progress in response to HIV and AIDS, notable challenges remain for children, especially identification, linkage, and retention in HIV care and treatment services. To succeed in pediatric HIV programming requires the linkage and retention of the children in those services over time. This study assessed the level of retention to antiretroviral therapy (ART) and its associated factors among orphans and vulnerable children living with HIV (OVCLHIV) in Tanzania. Data were obtained from the USAID Kizazi Kipya project that collected pediatric ART data from October 2017 to October 2019 in 81 district councils of Tanzania. Community-based volunteers supported the linkage and retention of the OVCLHIV on ART. Analysis of on-ART status was conducted in a cohort of OVCLHIV aged 0-20 years enrolled in the project and monitored for 24 months. OVCLHIV who remained on ART until the end of the follow-up period were referred to as "retained," otherwise, "not retained". Multivariable analysis was conducted using logistic regression, adjusting for baseline characteristics. Of the 5,304 OVCLHIV analyzed, the mean age was 13.1 years, 51.5% were female, and 72.2% were living with female caregivers. Their overall rate of retention on ART over the 24 months was 86.7%. Multivariable analysis showed that as the higher frequency of home visit by the project staff increased, the likelihood of retention increased by 8% [adjusted odds ratio (aOR) = 1.08, 95% CI 1.06-1.11, p < 0.001]. Membership in people living with HIV (PLHIV) support groups was associated with a higher likelihood of retention compared to nonmembership (aOR = 3.31, 95% CI 2.60-4.21, p < 0.001). Children in larger family size were 22% less likely to sustain ART (aOR = 0.78, 95% CI 0.72-0.84, p < 0.001). Urban OVCLHIV were 18% less likely to remain on ART than their rural counterparts (aOR = 0.82, 95% CI 0.69-0.98, p = 0.030). Remaining on ART was 49% more likely for OVC in economically better-off households than those in destitute households (aOR = 1.49, 95% CI 1.22-1.81, p < 0.001). Male OVC were 17% less likely to be retained on ART than their female counterparts (aOR = 0.83, 95% CI 0.71-0.99, p = 0.033). Community-based OVC support resulted in a high pediatric retention rate over the 24 months of follow-up. While key enablers of retention were higher frequency of home visits by the project volunteer, participation in PLHIV support groups, and better economic status, large family sizes, urban place of residence, and male gender of the OVC were barriers. This study brings useful evidence to inform strategies for advancing retention of OVCLHIV on ART for their better health outcomes and overall wellbeing.

Accelerating caregivers' HIV status disclosure to community-based lay social welfare volunteers in Tanzania.

BACKGROUND: HIV status disclosure facilitates access to HIV-related prevention and treatment services and increases opportunities for social support, HIV risk reduction with partners, and index testing for sexual partners or children. This study assessed the effect of a program model of community-based social welfare volunteers on HIV status disclosure among caregivers of orphans and vulnerable children (OVC). METHODS: This was a longitudinal study, which was based on OVC caregivers who were beneficiaries of the USAID Kizazi Kipya project in Tanzania. They were enrolled (baseline) by community social welfare volunteers during 2017-2018, received services, and reassessed at midline in 2019. Caregivers who reported having been HIV tested, were asked to voluntarily report the status in order for the volunteers to establish and provide needed services. Those who reported their HIV status as negative or positive were grouped as "disclosed", and those who knew their status but did not report it were documented as "undisclosed". McNemar's tests compared disclosure rates at baseline and midline. Multivariable analysis was conducted using generalized estimating equation (GEE). RESULTS: The study analyzed 140,664 caregivers (72% female) from 81 district councils of Tanzania. Their mean age at enrollment was 47.4 years. Overall, 81.3% of the caregivers disclosed their HIV status to the project staff at baseline; this increased significantly to 96.1% at midline (p < 0.001). Disclosure at baseline varied significantly by sociodemographic characteristic (p < 0.05), with higher disclosure in females, among urban residents, and higher educated caregivers. However, the observed disclosure variations by sociodemographic characteristics at baseline disappeared at midline and disclosure reached around 96% across the characteristics (p > 0.05). In the multivariable analysis, caregivers' likelihood of HIV status disclosure was nearly 6 times higher at midline than at baseline, when baseline characteristics were adjusted for (OR = 5.76, 95% CI 5.59-5.94, p < 0.001). There were 26,329 caregivers who did not disclose their HIV status at baseline (i.e., 0% diclosure rate at baseline), but 94.7% (n = 24,933) had disclosed by midline, and their disclosure trend was rapidly increasing as their duration of exposure to the project increased. CONCLUSIONS: This study detected an increased caregivers' HIV status disclosure to the USAID Kizazi Kipya project staff by 14.8%, from 81.3% at baseline to 96.1% at midline within an average project exposure period of 1.4 years. The observed loss of sociodemographic differences in HIV status disclosure rate at midline implies that community-based interventions may be well-positioned to successfully address and eliminate sociodemographic barriers to service uptake and consequently improve services coverage and health outcomes.

Hunger and Adherence to Antiretroviral Therapy: Learning From HIV Positive Caregivers of Orphans and Vulnerable Children in Tanzania.

The association between hunger and adherence to antiretroviral therapy (ART) is less known especially in vulnerable populations receiving HIV care and treatment services. Caregivers of orphans and vulnerable children (OVC) are vulnerable and likely to experience hunger due to additional economic pressure in caring for OVC. Using data from the community-based, USAID-funded Kizazi Kipya project, this study assesses the association between hunger and ART adherence among caregivers of OVC in Tanzania. HIV positive caregivers enrolled in the project from January to July 2017 were analyzed. The outcome variable was adherence to ART, defined as "not having missed any ART dose in the last 30 days," and household hunger, measured using the Household Hunger Scale (HHS), was the main independent variable. Data analysis included multivariable logistic regression. The study analyzed 11,713 HIV positive caregivers who were on ART at the time of enrollment in the USAID Kizazi Kipya project in 2017. Aged 48.2 years on average, 72.9% of the caregivers were female. While 34.6% were in households with little to no hunger, 59.4 and 6.0% were in moderate hunger and severe hunger households, respectively. Overall, 90.0% of the caregivers did not miss any ART dose in the last 30 days. ART adherence rates declined as household hunger increased (p < 0.001). Multivariable analysis showed that the odds of adhering to ART was significantly lower by 42% among caregivers in moderate hunger households than those in little to no hunger households (OR = 0.58, 95% CI 0.50-0.68). The decline increased to 47% among those in severe hunger households (OR = 0.53, 95% CI 0.41-0.69). Hunger is an independent and a significant barrier to ART adherence among caregivers LHIV in Tanzania. Improving access to adequate food as part of HIV care and treatment services is likely to improve ART adherence in this population.

Correlates of Uptake of Antiretroviral Therapy in HIV-Positive Orphans and Vulnerable Children Aged 0-14 Years in Tanzania.

BACKGROUND: In 2018, only 65% of Tanzanian children aged 0-14 years living with human immunodeficiency virus (HIV) were on treatment, suggesting that challenges exist. This study explores factors associated with uptake of antiretroviral therapy (ART) among HIV-positive orphans and vulnerable children (OVC). METHODS: Data are from the USAID Kizazi Kipya project that aims to increase the uptake of HIV/AIDS and other health and social services by OVC and their caregivers. HIV-positive OVC aged 0-14 years who were enrolled in the project from January 2017 to September 2018 were analyzed. ART status (off ART or on ART) was the outcome variable. Multivariate analysis was performed using multilevel logistic regression. RESULTS: Of the 10,047 HIV-positive OVC aged 0-14 years analyzed, 93.5% were currently on ART at enrollment. In the multivariate analysis, OVC with male caregivers were 4-times more likely than those with female caregivers to be on ART (OR=4.03, 95% CI=1.49-10.90). OVC with HIV-positive caregivers were 12-times more likely than those with HIV-negative caregivers to be on ART (OR=12.0, 95% CI=3.81-37.70). OVC with caregivers who did not disclose their HIV status were 74% less likely to be on ART than OVC of HIV-negative caregivers (OR=0.26, 95% CI=0.08-0.90). OVC living in urban areas were more than 5-times as likely as their rural counterparts to be on ART (OR=5.55, 95% CI=2.21-14.0). CONCLUSION: The majority of the OVCLHIV in the current study were currently on ART (93.5%) at enrollment. However, uptake of ART by the OVC was dependent on factors external to themselves. Advancing ART uptake may require targeting OVC of female caregivers, OVC of HIV-negative caregivers, as well as OVC of caregivers of undisclosed HIV statu, and rural areas.