Table 2.

Pair-wise Comparisons Between Pain Group and Control.

	N	Pain GABA+ IU (Means SD)	Control GABA+ IU (Means SD)	Mean differences ± SD	Zscore	P-value
PCG
Migraine	n = 19	4.89 ± 0.62	4.62 ± 0.38	0.28 ± 0.63	−2.29	.02*
Whiplash	n = 17	4.78 ± 0.43	4.63 ± 0.44	0.16 ± 0.33	−1.82	.07
Back Pain	n = 19	4.88 ± 0.44	4.6 ± 0.32	0.31 ± 0.47	−2.67	.01*
ACC
Migraine	n = 19	4.51 ± 0.38	4.59 ± 0.51	−0.06 ± 0.64	−0.28	.77
Whiplash	n = 17	4.47 ± 0.79	4.69 ± 0.99	−0.22 ± 1.33	−0.73	.46
Back Pain	n = 19	4.60 ± 0.47	4.47 ± 0.5	0.13 ± 0.73	−0.85	.40
Thalamus Migraine	n = 19	6.16 ± 1.23	5.75 ± 0.78	0.41 ± 1.05	−1.49	.14
Whiplash	n = 17	6.08 ± 0.79	5.61 ± 0.91	0.38 ± 1.47	−1.40	.16
Back Pain	n = 18	6.55 ± 1.78	5.53 ± 0.80	1.01 ± 1.81	−2.11	.04*

^*denotes statistical significance (P−value <.05).