Patterns of cognitive impairment in iTTP
| Test . | No cognitive impairment, % . | Mild cognitive impairment, % . | Major cognitive impairment, % . | Mean . | SD . | P∗ . |
|---|---|---|---|---|---|---|
| Flanker inhibitory control and attention | 61.9 | 21.4 | 16.7 | 41.95 | 10.63 | <.001∗ |
| Pattern recognition | 76.2 | 16.7 | 7.1 | 53.74 | 16.11 | .140 |
| List-sorting working memory | 83.3 | 14.3 | 2.4 | 48.98 | 9.27 | .478 |
| Dimensional change card sort test | 73.8 | 21.4 | 4.8 | 50.64 | 14.74 | .779 |
| Oral reading recognition | 85.7 | 9.5 | 4.8 | 52.74 | 11.56 | .133 |
| Picture sequence memory | 85.7 | 14.3 | 0 | 51.05 | 9.79 | .492 |
| Picture vocabulary | 83.3 | 14.3 | 2.4 | 50.55 | 10.80 | .372 |
| Fluid cognition composite | 69.0 | 14.3 | 16.7 | 48.33 | 15.42 | .488 |
| Crystalized cognition composite | 85.7 | 11.9 | 2.4 | 52.19 | 10.00 | .163 |
| Total cognition composite | 76.2 | 11.9 | 11.9 | 50.05 | 13.42 | .982 |
| Test . | No cognitive impairment, % . | Mild cognitive impairment, % . | Major cognitive impairment, % . | Mean . | SD . | P∗ . |
|---|---|---|---|---|---|---|
| Flanker inhibitory control and attention | 61.9 | 21.4 | 16.7 | 41.95 | 10.63 | <.001∗ |
| Pattern recognition | 76.2 | 16.7 | 7.1 | 53.74 | 16.11 | .140 |
| List-sorting working memory | 83.3 | 14.3 | 2.4 | 48.98 | 9.27 | .478 |
| Dimensional change card sort test | 73.8 | 21.4 | 4.8 | 50.64 | 14.74 | .779 |
| Oral reading recognition | 85.7 | 9.5 | 4.8 | 52.74 | 11.56 | .133 |
| Picture sequence memory | 85.7 | 14.3 | 0 | 51.05 | 9.79 | .492 |
| Picture vocabulary | 83.3 | 14.3 | 2.4 | 50.55 | 10.80 | .372 |
| Fluid cognition composite | 69.0 | 14.3 | 16.7 | 48.33 | 15.42 | .488 |
| Crystalized cognition composite | 85.7 | 11.9 | 2.4 | 52.19 | 10.00 | .163 |
| Total cognition composite | 76.2 | 11.9 | 11.9 | 50.05 | 13.42 | .982 |
P values are from a single sample T test comparing the distribution of the fully corrected T score (corrected for age, sex, race/ethnicity and educational attainment) to the normative population mean.