Table 4.
Linear regression model 1 using all genotypes to estimate the effects of APOE and covariates on cognitive function.
| Total cognition | Executive function | Language | Memory | Visuospatial cognition | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Model | Coefficient | SE | Coefficient | SE | Coefficient | SE | Coefficient | SE | Coefficient | SE |
| All genotypes | ||||||||||
| β3/β4 | β0.306 | 0.24 | β0.042 | 0.10 | β0.048 | 0.04 | β0.062 | 0.06 | β0.286* | 0.14 |
| β3/β2 | β0.134 | 0.27 | 0.024 | 0.11 | 0.013 | 0.04 | 0.021 | 0.07 | β0.063 | 0.16 |
| β2/β4 | β0.107 | 0.35 | β0.025 | 0.15 | β0.015 | 0.05 | 0.066 | 0.09 | β0.060 | 0.22 |
| β4/β4 | 0.114 | 0.39 | β0.066 | 0.16 | β0.058 | 0.06 | β0.036 | 0.09 | β0.164 | 0.24 |
| β2/β2 | 0.434 | 0.57 | 0.489* | 0.23 | 0.155 | 0.09 | 0.099 | 0.14 | 0.470 | 0.35 |
| Age | β0.093*** | 0.01 | β0.037*** | <0.01 | β0.013*** | <0.01 | β0.029*** | <0.01 | β0.081*** | 0.01 |
| Male | β0.018 | 0.19 | 0.264* | 0.08 | 0.059* | 0.03 | β0.05 | 0.05 | 0.383* | 0.12 |
| Education | 1.758*** | 0.12 | 0.823*** | 0.05 | 0.355*** | 0.02 | 0.349*** | 0.03 | 1.394*** | 0.07 |
| HIV positive | 0.017 | 0.21 | β0.004 | 0.09 | β0.025 | 0.03 | β0.041 | 0.05 | β0.175 | 0.13 |
| Adjusted R-squared | 0.221 | 3.91 | 0.283 | 1.48 | 0.325 | 0.54 | 0.245 | 0.87 | 0.374 | 2.20 |
Standardised coefficients represent estimated changes in cognitive function. Domain estimates (executive function, language, memory, visuospatial cognition) change in standard deviation units. Adjusted R-squared values per model with residual standard error (SE) is shown.
p<0.05;
**p<0.00001;
p<2e-16.