Table 3.

Dopamine Transporter Uptake Measures in Controls and AW

		AWs			Group Comparisons (p values)
	Controls	AW	AWLo	AWHi	Controls vs. AW	Controls vs. AWLo	Controls vs. AWHi	AWHivs. AWLo
Anterior Striatum
Left	2.51 ± 0.51	2.40 ± 0.34	2.45 ± 0.34	2.34 ± 0.36	0.458	0.807	0.312	0.453
Right	2.44 ± 0.42	2.34 ± 0.32	2.40 ± 0.36	2.27 ± 0.27	0.445	0.953	0.213	0.248
Posterior Striatum
Left	3.13 ± 0.62	3.17 ± 0.57	3.18 ± 0.68	3.16 ± 0.48	0.817	0.721	0.974	0.752
Right	3.11 ± 0.45	3.19 ± 0.53	3.19 ± 0.60	3.18 ± 0.49	0.650	0.612	0.796	0.807

Data represent the mean ± SD. DAT binding is expressed as a ratio of striatal/occipital cortex binding, and were compared using ANCOVA with adjustment for age. p values are presented for the comparisons among controls, AW, AW subgroups (Hi and Lo).