Prussien KV, Siciliano RE, Ciriegio AE, Anderson AS, Sathanayagam R, DeBaun MR, Jordan LC, Compas BE. Correlates of Cognitive Function in Sickle Cell Disease: A Meta-Analysis.
J Pediatr Psychol 2020;
45:145-155. [PMID:
31968106 PMCID:
PMC7029698 DOI:
10.1093/jpepsy/jsz100]
[Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE
To provide a comprehensive quantitative review of biological, environmental, and behavioral correlates across domains of cognitive function in sickle cell disease (SCD).
METHODS
Forty-seven studies were identified in PubMed, MedLine, and PsycINFO involving 2573 participants with SCD.
RESULTS
Meta-analytic findings across all identified samples indicate that hemoglobin and hematocrit were positively correlated with Full Scale IQ [FSIQ; r = .15, 95% confidence interval (CI) = .10 to .21], language and verbal reasoning (r = .18, 95% CI = .11 to .24), and executive function (r = .10, 95% CI = .01 to .19) with small effects and significant heterogeneity. Transcranial Doppler velocity was negatively associated with visual spatial and perceptual reasoning (r = -.18, 95% CI = -.31 to -.05). Socioeconomic status was positively associated with FSIQ (r = .23, 95% CI = .17 to .28), language and verbal reasoning (r = .28, 95% CI = .09 to .45), visual spatial and perceptual reasoning (r = .26, 95% CI = .09 to .41), and executive function (r = .18, 95% CI = .07 to .28) with small to medium effects. Finally, total behavioral problems were negatively associated with FSIQ (r = -.12, 95% CI = -.21 to -.02) such that participants with lower FSIQ exhibited greater behavioral and emotional problems.
CONCLUSIONS
Findings provide evidence for biological, environmental, and psychosocial corelates across multiple domains of cognitive function in SCD. More research on more specific cognitive domains and psychosocial correlates is needed in addition to assessments of interactional models among risk factors.
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