Total choline intake and working memory performance in adults with phenylketonuria

Table 2 Working memory performance in PKU and non-PKU participants^a

Working memory outcome	Marginal mean Z-score (95% CI)
Working memory outcome	PKU (n = 40)	Non-PKU (n = 40)	Average Z-score difference (95% CI)	p-value
Composite	0.21 (0.04, 0.39)	0.53 (0.36, 0.71)	0.32 (0.06, 0.58)	0.02
SSP	0.10 (− 0.21, 0.41)	0.49 (0.18, 0.80)	0.39 (− 0.05, 0.83)	0.08
PAL	0.37 (0.05, 0.69)	0.80 (0.49, 1.12)	0.43 (− 0.02, 0.89)	0.06
RVP	− 0.01 (− 0.20, 0.18)	0.36 (0.17, 0.55)	0.37 (0.10, 0.65)	0.01
SWM	0.35 (− 0.01, 0.71)	0.59 (0.23, 0.95)	0.24 (− 0.27, 0.75)	0.36
DS	0.16 (− 0.12, 0.44)	0.41 (0.13, 0.70)	0.25 (− 0.15, 0.66)	0.22

DS, Digit Span; PAL, Paired Associates Learning; RVP, Rapid Visual Information Processing; SSP, spatial span; SWM, Spatial Working Memory
^aData Derived from ANCOVA adjusted for overall intellectual ability (Matrix Reasoning)

ISSN: 1750-1172