Table 3.

Metabolite:Cr Ratios

	ACC			POC

MEGAPRESS	ADO (n=30)	EA (n=19)^a	p	ADO (n=23)^a	EA (n=18)^a	p
GABA/Cr	0.130 ± 0.055	0.168 ± 0.063	.029	0.256 ± 0.086	0.213 ± 0.093	ns

2D-JPRESS	ADO (n=30)	EA (n=20)	p	ADO (n=28)^a	EA (n=19)^a	p
Cho/Cr	0.244 ± 0.022	0.253 ± 0.045	ns	0.147 ± 0.015	0.153 ± 0.022	ns
Glu/Cr	0.946 ± 0.113	0.881 ± 0.175	.11	0.868 ± 0.129	0.797 ± 0.115	ns
Gln/Cr	0.261 ± 0.055	0.287 ± 0.055	.10	0.278 ± 0.096	0.281 ± 0.063	ns
Gln/Glu	0.280 ± 0.073	0.345 ± 0.118	.02	0.317 ± 0.073	0.359 ± 0.093	.09
mI/Cr	0.772 ± 0.093	0.818 ± 0.061	ns	0.699 ± 0.058	0.689 ± 0.116	ns
NAA/Cr	1.130 ± 0.110	1.154 ± 0.128	ns	1.328 ± 0.163	1.385 ± 0.068	ns

Data represent mean values ± standard deviation.

^a,b

Metabolite data were not available for some subjects.

Abbreviations: ADO, adolescent; EA, emerging adult; ACC, anterior cingulate cortex; POC, parieto-occipital cortex; Cr, creatine; Cho, choline; Glu, glutamate; Gln, glutamine; mI, myo-Inositol; NAA, N-acetyl-aspartate; ns, not statistically significant, p >.05