Table 1:

Demographic characterization of study sample (n=131).

Group	Cocaine Use Disorder (CUD)	Healthy Comparison
Participants (n, % Male)	69(85.51)	62(79.03)	χ2: 0.30 p=0.583
Age (mean±sd)	31.34±7.27	30.42±8.18	t: −0.68; p=0.501
Education (mean±sd)	2.83±1.27	3.52±1.39	χ2: 13.40 p<0.020*
Head Motion(mean±sd)	0.23±0.10	0.21±0.08	t: 1.63; p=0.105

Three participants were excluded for missing age values. Seven participants were excluded for missing education values. Three participants (2 two HC, 1 CUD) missing sex values, male/female were the only available options. χ2, chi-square. Head motion calculated using mean framewise displacement (mm).

^*= significant group difference (p< 0.05).