. Author manuscript; available in PMC: 2013 Aug 1.

Published in final edited form as: Mov Disord. 2012 Jul 20;27(9):1137–1145. doi: 10.1002/mds.25105

Table 2.

Pair-wise comparisons between groups for number of draws (above) and for opposite color choices (below)

Group (χ², p-value)	PD−ICB	Illicit substance abusers	Gamblers	Controls

PD+ICB
Draws	27.1, p < 0.001	0.38, p = 0.53	13.9, p < 0.001	75.1, p < 0.001
Opposite color	4.0, p = 0.044	12.2, p < 0.001	3.6, p = 0.055	30.3, p < 0.001

PD−ICB
Draws		13.4, p < 0.001	0.45, p = 0.8	65.1, p < 0.001
Opposite color		29.4, p < 0.001	0.001, p > 0.97	15.0, p < 0.001

Addicts
Draws			8.3, p=0.004	34.8, p < 0.001
Opposite color			24.0, p < 0.001	60.8, p < 0.001

Gamblers
Draws				34.0, p < 0.001
Opposite color				13.9, p < 0.001

All p-values shown are uncorrected. Values less than 0.0125 (highlighted in bold) for the PD+ICB group are significant. All p-values in this and subsequent tables are for main effect of group.