Table 1.

Demographics of the study population. In general, the N-acetylcysteine and Modafinil subjects are highly comparable, although Modafinil subjects are statistically significantly younger than N-acetylcysteine subjects. P-values marked with an asterisk are significant at the 0.05 level.

	Overall	N-acetylcysteine Study	Modafinil Study
Total Study Participants	129	66	63
	median [IQR]	median	median	Wilcoxon Rank Sum p-value
Age	42 [ 35–47]	44 [35–44]	41 [35–44]	0.037*
Baseline Monthly Cocaine Days	12 [8–19]	12 [8–19]	12 [8–21]	0.888
Days in Study	50 [21–56]	50 [20–55]	51 [23–56]	0.563
	% (n)	% (n)	% (n)	χ2 p-value
Gender
Male	80% (103)	80% (53)	79% (50)	0.894
Female	20% (26)	20% (13)	21% (13)
Race
Black	49% (63)	47% (31)	51% (32)	0.664
White	51% (66)	53% (35)	49% (31)
Baseline Cocaine Use
Light	35% (45)	29% (19)	41% (26)	0.137
Heavy	65% (84)	71% (47)	59% (37)
Completion Status
Completers	56% (72)	53% (35)	59% (37)	0.515
Non-Completers	44% (57)	47% (31)	41% (37)