Table 2.

Cognitive Differences between Lean and Obese Adolescent Groups

Frontal Lobe Tasks	Lean Mean ± SD	Obese Mean ± SD	t	p	d
Stoop Color-Word Score (no. correct/min.)	46.3 ± 8.3	38.9 ± 7.6	4.30	<0.001	0.94
(Response Inhibition)
Trail Making Test Part A (secs.)	22.6 ± 5.2	28.2 ± 8.1	−3.90	<0.001	0.88
(Attention)
Trail Making Test Part B (secs.)	51.3 ± 16.3	68.1 ± 32.0	−2.71	0.008	0.62
(Cognitive Flexibility)
COWAT – Sum of F, A, S	39.3 ± 13.1	33.8 ± 7.9	2.21	0.032	0.50
(Verbal Fluency)
WRAML Working Memory Index	110.7 ± 13.3	99.4 ± 13.8	3.79	<0.001	0.83
WRAML Attn/Concent. Index	108.6 ± 15.6	100.8 ± 12.4	2.58	0.012	0.56
Estimated Full-Scale IQ	108.6 ± 12.5	102.6 ± 10.9	2.37	0.020	0.51