Meningococcal Conjugate and Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccination Among HIV-infected Youth.

Background: The meningococcal conjugate vaccine (MCV4) and the tetanus toxoid, reduced diphtheria toxoid and acellular pertussis vaccine (Tdap) were first recommended for adolescents in the US in 2005. The goal of our study was to determine MCV4 and Tdap vaccines coverage among perinatally and behaviorally HIV-infected adolescents in 2006 and to compare coverage estimates in our study population to similarly aged healthy youth in 2006.

Methods: Longitudinal Epidemiologic Study to Gain Insight into HIV/AIDS in Children and Youth (LEGACY) is a retrospective cohort study of HIV-infected youth in 22 HIV specialty clinics across the US.

Perinatal HIV Prevention Outcomes in U.S.-Born Versus Foreign-Born Blacks, PSD Cohort, 1995-2004.

We examined differences in HIV-infected U.S.-born and foreign-born black mothers who delivered perinatally HIV-exposed and -infected children during 1995-2004 in the Pediatric Spectrum of HIV Disease Project, a longitudinal cohort study.

Prevalence and outcomes of recycling NNRTIs despite documented NNRTI resistance in HIV-infected children and youth.

Non-nucleoside reverse transcriptase inhibitors (NNRTIs) are commonly used in pediatric patients; however, rapid development of resistance, due to non-adherence and cross-resistance, results in their discontinuation and limits their recycling. We evaluated the clinical experience of recycling NNRTIs despite documented NNRTI resistance (NNRTI-R), and examined virologic and CD4 cell count outcomes among participants enrolled in Longitudinal Epidemiologic Study to Gain Insight into HIV/AIDS in Children and Youth (LEGACY), a national HIV-infected pediatric cohort. We conducted a retrospective analysis of LEGACY participants with major NNRTI-R.

Incidence of opportunistic illness before and after initiation of highly active antiretroviral therapy in children.

Background: Little is known about immune reconstitution inflammatory syndrome in children in the United States.

Methods: LEGACY is a longitudinal cohort study of HIV-infected participants 0-24 years at enrollment during 2005 to 2007 from 22 US clinics. For this analysis, we included participants with complete medical record abstraction from birth or time of HIV diagnosis through 2006.

Use of nucleoside reverse transcriptase inhibitor-only regimens in HIV-infected children and adolescents.

Objective: In adults, nucleoside reverse transcriptase inhibitor-only antiretroviral regimens (NOARs) with ≥3 nucleoside reverse transcriptase inhibitors are less potent than highly active antiretroviral therapy (HAART). Published pediatric experience with NOARs is limited; thus, we wished to better define the virological, immunological and toxicological effects of NOARs in children and adolescents.

Methods: We analyzed data from NOAR-treated participants in LEGACY, a multicenter observational cohort study of HIV-infected children and adolescents.

Methicillin-Resistant Staphylococcus aureus Infections in Human Immunodeficiency Virus-Infected Children and Adolescents.

Background. Methicillin-resistant Staphylococcus aureus (MRSA) infection incidence has increased in healthy US children. Our objective was to evaluate MRSA incidence and correlates in HIV-infected youth.

Cervical pap screening cytological abnormalities among HIV-infected adolescents in the LEGACY cohort.

Objectives: To determine the prevalence of cervical Pap screening (CPAP-S), identify factors associated with CPAP-S, and explore risk factors for abnormal cervical cytology in female adolescents with perinatally and behaviorally acquired HIV infection.

Design: Cross-sectional.

Setting: LEGACY is a national observational cohort chart review study of 1478 HIV-infected persons ( View Article and Find Full Text PDF

Correlates of sexual activity and sexually transmitted infections among human immunodeficiency virus-infected youth in the LEGACY cohort, United States, 2006.

Background: To determine the prevalence and correlates of sexual activity and sexually transmitted infections (STIs) among human immunodeficiency virus (HIV)-infected youth.

Methods: The Longitudinal Epidemiologic Study to Gain Insight into HIV/AIDS in Children and Youth (LEGACY) is an observational medical record study of perinatally and behaviorally HIV-infected (PHIV and BHIV) youth followed at 22 US HIV clinics. PHIV youth were HIV infected at birth or by breast-feeding.

Associations of medically documented psychiatric diagnoses and risky health behaviors in highly active antiretroviral therapy-experienced perinatally HIV-infected youth.

The Longitudinal Epidemiologic Study to Gain Insight into HIV/AIDS in Children and Youth (LEGACY) study is a prospective, multisite, longitudinal cohort of U.S. HIV-infected youth.

Declines in low birth weight and preterm birth among infants who were born to HIV-infected women during an era of increased use of maternal antiretroviral drugs: Pediatric Spectrum of HIV Disease, 1989-2004.

Objective: Our goal was to determine trends in low birth weight and preterm birth among US infants born to HIV-infected women.

Methods: We used data from the longitudinal Pediatric Spectrum of HIV Disease, a large HIV cohort, to assess trends in low birth weight and preterm birth from 1989 to 2004 among 11,321 study infants. Among women with prenatal care, we also assessed risk factors, including maternal antiretroviral therapy during pregnancy, that were predictive of low birth weight and preterm birth using univariate and multivariate logistic regression models.

Updated estimates of healthcare utilization and costs among perinatally HIV-infected children.

Objectives: This study examined changes in healthcare use among perinatally HIV-infected children and developed new estimates of expected lifetime treatment costs.

Methods: The study analyzed longitudinal medical record data from the Pediatric Spectrum of Disease study on perinatally HIV-infected children enrolled in 6 US sites during 1995 and 2001 for enrollee characteristics including healthcare utilization. For the year 2001, costs were assigned to hospitalization, HIV-related drug usage, and laboratory testing.