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Cognitive Function in Adolescents and Young Adults With Youth-Onset Type 1 Versus Type 2 Diabetes: The SEARCH for Diabetes in Youth Study

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posted on 26.04.2021, 21:07 by Allison L. B. Shapiro, Dana Dabelea, Jeanette M. Stafford, Ralph D’Agostino Jr, Catherine Pihoker, Angela D. Liese, Amy S. Shah, Anna Bellatorre, Jean M. Lawrence, Leora Henkin, Sharon Saydah, Greta Wilkening, SEARCH for Diabetes in Youth Study Group
Objective: Poor cognition has been observed in children and adolescents with youth-onset type 1 (T1D) and type 2 diabetes (T2D) compared to non-diabetic controls. Differences in cognition between youth-onset T1D and T2D, however, are not known. Thus, using data from SEARCH for Diabetes in Youth, a multicenter, observational cohort study, we tested the association between diabetes type and cognitive function in adolescents and young adults with T1D (n=1,095) and T2D (n=285). Research Design and Methods: Cognition was assessed via the National Institutes of Health Toolbox Cognition Battery and age-corrected composite Fluid Cognition scores used as the primary outcome. Confounder-adjusted linear regression models were run. Model 1 included diabetes type and clinical site. Model 2 additionally included sex, race/ethnicity, waist-height ratio, diabetes duration, depressive symptoms, glycemic control, any hypoglycemic episode in the past year, parental education, and household income. Model 3 additionally included Picture Vocabulary score, a measure of receptive language and crystallized cognition. Results: Having T2D was significantly associated with lower fluid cognitive scores before adjustment for confounders (Model 1; p <0.001). This association was attenuated to non-significance with the addition of a priori confounders (Model 2; p= 0.06) and Picture Vocabulary scores (Model 3; p = 0.49). Receptive language, waist-height ratio, and depressive symptoms remained significant in the final model (p<0.01 for all, respectively). Conclusions: These data suggest that while youth with T2D have worse fluid cognition than youth with T1D, these differences are accounted for by differences in crystallized cognition (receptive language), central adiposity, and mental health. These potentially modifiable factors are also independently associated with fluid cognitive health, regardless of diabetes type. Future studies of cognitive health in people with youth-onset diabetes should focus on investigating these significant factors.

Funding

The SEARCH for Diabetes in Youth Cohort Study (1UC4DK108173) is funded by the National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases and supported by the Centers for Disease Control and Prevention. The Population Based Registry of Diabetes in Youth Study (1U18DP006131, U18DP006133, U18DP006134, U18DP006136, U18DP006138, U18DP006139) is funded by the Centers for Disease Control and Prevention and supported by the National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases. Sites (SEARCH 1 through 4): Kaiser Permanente Southern California (U18DP006133, U48/CCU919219, U01 DP000246, and U18DP002714), University of Colorado Denver (U18DP006139, U48/CCU819241-3, U01 DP000247, and U18DP000247-06A1), Cincinnati's Children's Hospital Medical Center (U18DP006134, U48/CCU519239, U01 DP000248, and 1U18DP002709), University of North Carolina at Chapel Hill (U18DP006138, U48/CCU419249, U01 DP000254, and U18DP002708), Seattle Children's Hospital (U18DP006136, U58/CCU019235-4, U01 DP000244, and U18DP002710-01), Wake Forest University School of Medicine (U18DP006131, U48/CCU919219, U01 DP000250, and 200-2010-35171)

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