Table 3: Mean z-scores (±95% confidence intervals) for normal weight and obese groups.

Cognition domainNormal weightObese value
Mean±95% CIMean±95% CI

Impulsivity0.360.18 to 0.54−0.07−0.25 to 0.110.001
Attention0.310.09 to 0.53−0.25−0.49 to −0.020.001
Information processing0.450.31 to 0.600.240.07 to 0.410.055
Memory0.01−0.14 to 0.16−0.25−0.43 to −0.080.022
Executive function0.490.33 to 0.640.410.22 to 0.600.540

Univariate tests.