Table 1:

Quantitative metabolite ratios for preterm neonates (group 1) and term infants (group 2)

		NAA/Cho	Cho/Cr	NAA/mlns	mIns/Cr	Glx/Cr
Basal ganglia	Group 1	1.88 ± 0.35	0.53 ± 0.06	0.60 ± 0.08	1.65 ± 0.27	1.70 ± 0.27
	Group 2	2.49 ± 0.40^*	0.39 ± 0.06^**	0.94 ± 0.20^**	1.06 ± 0.22^**	2.20 ± 0.49
Thalamus	Group 1	2.33 ± 0.24	0.53 ± 0.05	0.87 ± 0.09	1.43 ± 0.13	1.69 ± 0.26
	Group 2	2.71 ± 0.42	0.44 ± 0.05^**	1.15 ± 0.10^**	1.03 ± 0.10^**	1.77 ± 0.10
Optic radiations	Group 1	2.04 ± 0.10	0.54 ± 0.06	0.60 ± 0.13	1.96 ± 0.70	1.69 ± 0.32
	Group 2	2.48 ± 0.50	0.56 ± 0.13	0.67 ± 0.17	2.14 ± 0.74	3.13 ± 2.14
Calcarine gray matter	Group 1	2.28 ± 0.25	0.60 ± 0.07	0.43 ± 0.04	3.18 ± 0.35	4.02 ± 0.88
	Group 2	2.87 ± 0.58	0.46 ± 0.07^**	0.47 ± 0.09	2.75 ± 0.39	3.23 ± 0.66
Posterior white matter	Group 1	2.35 ± 0.42	0.56 ± 0.02	0.73 ± 0.20	1.85 ± 0.16	2.25 ± 0.33
	Group 2	2.58 ± 0.50	0.53 ± 0.10	0.66 ± 0.16	2.13 ± 0.68	3.01 ± 0.70
Frontal white matter	Group 1	2.04 ± 0.60	0.69 ± 0.18	0.55 ± 0.10	2.48 ± 0.55	3.38 ± 0.76
	Group 2	2.46 ± 0.46	0.59 ± 0.13^*	0.76 ± 0.14^*	1.90 ± 0.31^*	3.68 ± 1.07

Note:—NAA indicates N-acetylaspartate; Cho, choline; Cr, creatine; mlns, myo-inositol; Glx, glutamate/glutamine.
* P < .05.
** P < .005.