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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Neuroimage. 2013 Apr 13;78:75–82. doi: 10.1016/j.neuroimage.2013.04.012

Table 2.

GABA+/Cr, GABA+/NAA and Glx/Cr ratios in the frontal region and parietal region among all subjects

Region of interest Men + Women (n = 100) Men (n = 49) Women (n = 51) P value
Frontal region (GABA+/Cr) 0.264±0.042 0.265±0.038 0.263±0.046 0.80a
Parietal region (GABA+/Cr) 0.254±0.040 0.251±0.035 0.257±0.045 0.48a
P value (GABA+/Cr) 0.04b
Frontal region (GABA+/NAA) 0.228±0.035 0.231±0.030 0.226±0.039 0.56a
Parietal region (GABA+/NAA) 0.219±0.032 0.221±0.032 0.218±0.032 0.65a
P value (GABA+/NAA) 0.03b
Frontal region (Glx/Cr) 0.203±0.043 0.206±0.044 0.201±0.043 0.55a
Parietal region (Glx/Cr) 0.215±0.047 0.213±0.040 0.216±0.053 0.73a
P value (Glx/Cr) 0.05b
a

Comparison of metabolite ratios between men and women.

b

Comparison of the metabolite ratios between frontal region and parietal region of all subjects

The values are mean ± standard deviation, GABA = gamma-aminobutyric acid, Cr = total creatine, NAA = N-acetylaspartate, GABA+ = GABA plus co-edited macromolecules, Glx = glutamate+glutamine.