Table 2.

Change in cognitive test performance over 12-months.

Variable	Normal (n = 24)			Overweight (n = 27)				Obese (n = 15)
	Mean	SD	% change	Mean	SD	% change	p-valuea	Mean	SD	% Change	p-valuea
Δ Digit span test	0.33	3.50	10.28	0.12	2.82	3.09	0.91	−0.85	2.88	−22.37%	0.26
Δ Stroop test (s)	−6.57	19.38	−12.71	−1.72	14.27	−3.65	0.32	−3.28	29.79	−4.92%	0.64
Δ Trail making (s)	−1.49	37.91	−3.07	−2.80	36.30	6.12	0.96	1.26	24.25	1.31%	0.61
Δ MoCA	−0.88	2.88	−3.38	0.12	2.98	0.50	0.21	−0.64	1.91	−2.74%	0.80

Δ in performance scores were calculated by taking performance at 12-month minus performance at baseline; negative score and percent change in Δ Digit Span Test, Δ Stroop Test and ΔTrail Making reflect improvement; positive score in Δ MoCA reflects improvement.

^aComparison to normal weight group.