- Univariate linear regression of participants with chronic hyperglycemia and their IQ performance (N=50).
| IQ classes | HbA1c in Low IQ group % (SD) | HbA1c in Normal IQ group % (SD) | P-value (CI 95%) |
|---|---|---|---|
| Full scale | 10.43% (2.60%) | 9.40% (1.41%) | 0.140 (-0.349%, 2.415%) |
| Verbal | |||
| Fluid reasoning | 12.50% (2.13%) | 9.35% (1.41%) | 0.002 (1.149%, 4.638%) |
| Knowledge | 9.99% (1.16%) | 9.46% (1.65%) | 0.456 (-0.881%, 1.932%) |
| Quantitative reasoning | 11.38% (2.09%) | 9.32% (1.42%) | 0.005 (0.652%, 3.474%) |
| Visual spatial | 9.91% (2.04%) | 9.29% (1.23%) | 0.191 (-0.316%, 1.544%) |
| Working memory | 10.45% (2.38%) | 9.23% (1.15%) | 0.020 (0.199%, 2.233%) |
| Non-verbal | |||
| Fluid reasoning | 9.95% (2.86%) | 9.47 (1.39%) | 0.493 (-0.924%, 1.891%) |
| Knowledge | 10.15% (2.39%) | 9.33% (1.23%) | 0.124 (-0.232%, 1.868%) |
| Quantitative reasoning | 9.31% (1.98%) | 9.54% (1.59%) | 0.809 (-2.168%, 1.701%) |
| Visual spatial | 9.96% (2.24%) | 9.43% (1.44%) | 0.373 (-0.656%, 1.717%) |
| Working memory | 9.40% (1.34%) | 9.55% (1.65%) | 0.811 (-1.402%, 1.103%) |
CI: confidence interval, IQ: intelligence quotient, SD: standard deviation, Mean HbA1c presented in percentage and SD.