Neuro-cognitive performance in children with type 1 diabetes - A meta-analysis

Justine M Naguib, Elena Kulinskaya, Claire L Lomax, M Garralda

Research output: Contribution to journalArticlepeer-review

135 Citations (SciVal)


Objective: To conduct meta-analyses of neuropsychological performance in young people with type 1 diabetes. Methods: Meta-analysis of 24 studies. Studies published between 1980 and 2005 were identified. The inclusion criteria were: young people who were less than =19 years of age with type 1 diabetes, a case-control design and standardized neuropsychological tests of seven cognitive domains.
Results: Diabetes was statistically associated with poorer performance on visuospatial ability (d = -0.29), motor speed (d = -0.26) and writing (d = -0.28), on sustained attention (d = -0.21) and reading (d = -0.23). Smaller effects were identified on full IQ (d = -0.14), on performance (d = -0.18) and verbal IQ (d = -0.15). Severe hypoglycemia was linked to deficits in short-term verbal memory (d = -0.14; Confidence Interval: -0.318, 0.024; p = .04).
Conclusions: This meta-analysis indicates that children with type 1 diabetes have mild cognitive impairments and subtly reduced overall intellectual functioning.
Original languageEnglish
Pages (from-to)271-282
Number of pages12
JournalJournal of Pediatric Psychology
Issue number3
Publication statusPublished - 2009


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