. Author manuscript; available in PMC: 2021 Aug 1.

Published in final edited form as: J Pediatr. 2020 Jun 9;223:141–147.e4. doi: 10.1016/j.jpeds.2020.04.039

Table 4.

Descriptive statistics for neurocognitive outcomes at three years post-diagnosis

	N	Mean	SD	Mean difference	p^a	% At Risk^b	p^c
Woodcock Johnson Tests of Cognitive Abilities, 3^rd edition (SS)
General Intellectual Ability	94	94.9	17.9	5.0	0.0080	28.7	0.0005
Broad Attention	88	89.1	17.9	10.9	< 0.0001	35.2	< 0.0001
Working Memory	94	93.6	16.9	6.4	0.0004	26.6	0.0027
Processing Speed	92	82.2	22.2	17.8	< 0.0001	46.7	< 0.0001
Woodcock Johnson Tests of Achievement , 3^rd edition (SS)
Broad Reading	89	93.7	14.8	6.3	< 0.0001	25.8	0.0064

Abbreviations: SS = Standard Score, population mean = 100, SD = 15; Bold font = statistically significant at p ≤ 0.001.

^a:

two-tailed p-value from a one-sample t-test comparing the group mean to normative expectations

^b:

frequency of scores 1 SD outside the normative mean

^c:

two-sided p-value from frequency comparison (Chi-Square) of the distribution of at-risk and not at-risk scores (percentage).