Table 3.

Mean z-scores (±95% confidence intervals) for normal weight and obese groups.

Cognition domain	Normal weight		Obese		p value∗
	Mean	±95% CI	Mean	±95% CI
Impulsivity	0.36	0.18 to 0.54	−0.07	−0.25 to 0.11	0.001
Attention	0.31	0.09 to 0.53	−0.25	−0.49 to −0.02	0.001
Information processing	0.45	0.31 to 0.60	0.24	0.07 to 0.41	0.055
Memory	0.01	−0.14 to 0.16	−0.25	−0.43 to −0.08	0.022
Executive function	0.49	0.33 to 0.64	0.41	0.22 to 0.60	0.540

^∗Univariate tests.