Table 1.

Wilcoxon signed rank tests for attention measures between initial and follow-up visits

Measure	Time Point 1 mean (SD)	Time Point 2 mean (SD)	Z	p value
Sustained attention	23.94 (3.79)	26.78 (2.82)	4.61	p < 0.0001
Selective attention	14.15 (3.16)	15.9 (2.45)	3.33	p < 0.001
Executive attention	−33.79 (13.22)	−27.62 (6.58)	2.64	p = 0.008

The relationship between age and the three attention measures were assessed with Wilcoxon signed rank tests, as well as with linear mixed-effect models (Extended Data Table 1-1).