Impact of HIV severity on cognitive and adaptive functioning during childhood and adolescence

Renee Smith*, Miriam Chernoff, Paige L. Williams, Kathleen M. Malee, Patricia A. Sirois, Betsy Kammerer, Megan Wilkins, Sharon Nichols, Claude Mellins, Ann Usitalo, Patricia Garvie, Richard Rutstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

99 Scopus citations

Abstract

Background: The influence of disease severity on cognitive and adaptive functioning in perinatally HIV-infected youth with (PHIV) and without (PHIV?) a previous AIDS-defining illness (Centers for Disease Control and Prevention Class C event), compared with perinatally HIV-exposed but uninfected youth (PHEU) is not well understood. Methods: This was a cross-sectional analysis of cognitive and adaptive functioning in PHIV (n = 88), PHIV? (n = 270) and PHEU (n = 200) youth aged 7-16 years, from a multisite prospective cohort study. Youth and caregivers completed the Wechsler Intelligence Scale for Children, Fourth Edition and the Adaptive Behavior Assessment System, Second Edition, respectively. We compared means and rates of impairment between groups, and examined associations with other psychosocial factors. Results: Overall mean scores on measures of cognitive and adaptive functioning were in the low average range for all 3 groups. After adjustment for covariates, mean full-scale intelligence quotient scores were significantly lower for the PHIV group than the PHIV? and PHEU groups (mean = 77.8 versus 83.4 and 83.3, respectively), whereas no significant differences were observed between the PHEU and PHIV? groups in any domain. Lower cognitive performance for the PHIV group was primarily attributable to a prior diagnosis of encephalopathy. No significant differences between groups were observed in adaptive functioning.Conclusion: For long-term survivors, youth with HIV infection and a prior Centers for Disease Control and Prevention Class C event have higher risk for cognitive but not adaptive impairment regardless of current health status; this finding appears attributable to a previous diagnosis of encephalopathy. Early preventive therapy may be critical in reducing risk of later neurodevelopmental impairments.

Original languageEnglish (US)
Pages (from-to)592-598
Number of pages7
JournalPediatric Infectious Disease Journal
Volume31
Issue number6
DOIs
StatePublished - Jun 2012

Keywords

  • Adaptive functioning
  • Cognitive functioning
  • Pediatric HIV infection
  • Perinatal HIV exposure

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Microbiology (medical)
  • Infectious Diseases

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