Association between Antiretroviral Therapy and Cancers among Children Living with HIV in Sub-Saharan Africa.

Approximately 91% of the world's children living with HIV (CLWH) are in sub-Saharan Africa (SSA). Living with HIV confers a risk of developing HIV-associated cancers. To determine the incidence and risk factors for cancer among CLWH, we conducted a nested case-control study of children 0-18 years from 2004-2014 at five centers in four SSA countries. Incident cases of cancer and HIV were frequency-matched to controls with HIV and no cancer. We calculated the incidence density by cancer type, logistic regression, and relative risk to evaluate risk factors of cancer. The adjusted incidence density of all cancers, Kaposi sarcoma, and lymphoma were 47.6, 36.6, and 8.94 per 100,000 person-years, respectively. Delayed ART until after 2 years of age was associated with cancer (OR = 2.71, 95% CI 1.51, 4.89) even after adjusting for World Health Organization clinical stage at the time of enrolment for HIV care (OR = 2.85, 95% CI 1.57, 5.13). The relative risk of cancer associated with severe CD4 suppression was 6.19 (p = 0.0002), 2.33 (p = 0.0042), and 1.77 (p = 0.0305) at 1, 5, and 10 years of ART, respectively. The study demonstrates the high risk of cancers in CLWH and the potential benefit of reducing this risk by the early initiation of ART.

The Pediatric AIDS Corps: a 5-year evaluation.

BACKGROUND: The Baylor College of Medicine International Pediatric AIDS Initiative at Texas Children's Hospital created a global health corps named the Pediatric AIDS Corps (PAC) in June 2005. This report provides descriptive details and outputs for PAC over its first 5 years. METHODS: Demographic data were gathered about PAC physicians employed from July 2006 to June 2011. A 21-question survey was used to query PAC physicians about their experiences in the program. Data concerning clinical experiences and educational programs also were reviewed. RESULTS: A total of 128 physicians were employed with PAC. The median duration served was 22.7 months. Eighty-seven percent indicated that experience affected their future career choice, with half continuing to work with children and families living in resource-limited areas after they left PAC. Patient care was identified as the most rewarding part of their work (73%), whereas deaths (27%) were the most difficult. Baylor College of Medicine International Pediatric AIDS Initiative enrollment of HIV-infected children and adolescents into care and treatment increased from 6107 to 103 731 with the addition of PAC physicians. Approximately 500 local health care professionals per quarter benefited from HIV clinical attachments that were not available before PAC arrival. PAC physicians visited outreach sites providing in-depth HIV mentoring of local health care professionals, leading to 37% of the sites becoming self-sufficient. CONCLUSIONS: The positive evaluation by the PAC and the scale-up of clinical and educational programs support the recent calls for the development of a national global health corps program.

Mortality and clinical outcomes in HIV-infected children on antiretroviral therapy in Malawi, Lesotho, and Swaziland.

OBJECTIVE: To determine mortality and immune status improvement in HIV-infected pediatric patients on antiretroviral treatment (ART) in Malawi, Lesotho, and Swaziland. METHODS: We conducted a retrospective cohort study of patients aged <12 years at ART initiation at 3 sites in sub-Saharan Africa between 2004 and 2009. Twelve-month and overall mortality were estimated, and factors associated with mortality and immune status improvement were evaluated. RESULTS: Included in the study were 2306 patients with an average follow-up time on ART of 2.3 years (interquartile range 1.5-3.1 years). One hundred four patients (4.5%) died, 9.0% were lost to follow-up, and 1.3% discontinued ART. Of the 104 deaths, 77.9% occurred in the first year of treatment with a 12-month mortality rate of 3.5%. The overall mortality rate was 2.25 deaths/100 person-years (95% confidence interval [CI] 1.84-2.71). Increased 12-month mortality was associated with younger age; <6 months (hazard ratio [HR] = 8.11, CI 4.51-14.58), 6 to <12 months (HR = 3.43, CI 1.96-6.02), and 12 to <36 months (HR = 1.92, CI 1.16-3.19), and World Health Organization stage IV (HR = 4.35, CI 2.19-8.67). Immune status improvement at 12 months was less likely in patients with advanced disease and age <12 months. CONCLUSIONS: Despite challenges associated with pediatric ART in developing countries, low mortality and good treatment outcomes can be achieved. However, outcomes are worse in younger patients and those with advanced disease at the time of ART initiation, highlighting the importance of early diagnosis and treatment.

The Pediatric AIDS Corps: responding to the African HIV/AIDS health professional resource crisis.

Health professional capacity for delivery of HIV/AIDS care and treatment is severely constrained across sub-Saharan Africa. African health professional expertise in pediatrics is in particularly short supply. Here we describe a Pediatric AIDS Corps program that was designed to place pediatricians and other physicians in Africa on a long-term basis to expand existing health professional capacity for pediatric and family HIV/AIDS care and treatment. In the first 2 years of this program, 76 physicians were placed in 5 African countries that have been hit hard by HIV/AIDS. Enrollment of HIV-infected children in care more than quadrupled over a 24-month period, to 26 590. We believe that this pilot program can serve as a model for larger-scale efforts to immediately expand access for African children and families to life-saving HIV/AIDS care and treatment.

Education and preparation of physicians entering an international pediatric AIDS program: the Pediatric AIDS Corps.

The Pediatric AIDS Corps (PAC) are a group of physicians that were hired to provide clinical care and treatment to children and their families infected with HIV/AIDS and to help educate local health care professionals in the management of children with HIV/AIDS located in the high prevalence areas of sub-Saharan Africa. Prior to their departure the PAC were required to participate in a 4-week educational training program that included travel and tropical medicine and HIV infections in children, teaching skills, bioethics, and good clinical practice in human research training. Evaluation of the program was done using a 50-question pretest/posttest design, a standard postcourse evaluation, and a PAC focus group follow-up. Fifty-two physicians were hired who had been trained in the following specialties: pediatrics (77%), medicine/pediatrics (9%), family medicine (8%), and internal medicine (6%). Posttest scores improved by a mean of 10 points for all PAC physicians (p < 0.001) but those that had been in Africa for 5 months or more prior to the course continued to score higher than the other participants. Reviewing the results by category demonstrated significant improvement in all areas (p < or = 0.002) except for general pediatrics for the HIV/AIDS infected patients (p = 0.124) and psychosocial issues (p = 0.376). Changes for the next training were implemented based upon the information obtained from the PAC focus group. The foundation provided by this educational course was an important beginning for the PAC physicians. Other groups providing specialized care to patients in developing countries might consider a similar educational program.