- Among children with type 1 diabetes (T1D), the better their diabetes is controlled (per HbA1c), the better their scores on standardized reading and math tests.
- Overall, these children do not differ from unaffected peers in test scores.
Why this matters
- Good diabetes control may be important for academic performance in children.
- Mean scores with and without T1D were:
- 56.56 vs 56.11;
- Difference: 0.45 (95% CI, −0.31 to 1.22).
- With adjustments for nonsocioeconomic factors, the difference was:
- 0.24 (95% CI, −0.90 to 1.39).
- With adjustment for socioeconomic status, it was:
- 0.45 (95% CI, −0.58 to 1.49).
- A sibling comparison (with, without T1D) also found no significant differences.
- Compared with HbA1c ≤8.6%, higher HbA1c was tied to lower scores:
- Mean, 56.11 vs 49.95;
- Difference, −6.15 (95% CI, −7.80 to −4.50).
- HbA1c significantly associated with test scores (P<.001 with each increase linked to an adjusted score reduction ci>
- Retrospective Danish cohort study, children in grades 2-4, 6, and 8.
- 524,764 with math scores; 1,037,006 with reading scores.
- Outcome: pooled test scores (1-100 range).
- Funding: Independent Research Fund Denmark.
- Denmark-specific; socioeconomic status associations especially could vary with region.