. Author manuscript; available in PMC: 2021 Jan 1.

Published in final edited form as: Psychopharmacology (Berl). 2019 Oct 31;237(1):263–278. doi: 10.1007/s00213-019-05364-3

Table 1.

Characteristics of Research Participants.

	Completers (n=16)	Non-Completers (n=23)	Healthy Controls (n=46)
Age (years)	39.88 ± 8.057	41.13 ± 10.132	35 ± 11.80^*
Sex (# male)	14	15	28
Education (years)	12.69 ± 1.778	12.93 ± 1.927	13.67 ± 1.765^*
Tobacco Use (# smokers)	9	15	15^*
Cigarettes per day	5.28 ± 6.335	8.35 ± 8.543	3.21 ± 5.505
Temporal Discounting (ln(k))	−1.88 ± 1.316	−1.76 ± 0.961	−2.30 ± 1.117^*
Probability Discounting (ln(h))	0.64 ± 0.8946	0.87 ± 0.8256	0.70 ± 0.8275

Within Alcohol Group No significant differences between alcohol-use disorder groups (Completers and Non-Completers) in demographic or drug use variable.
	Completers (n=16)	Non-Completers (n=23)
Alcohol Use
Years of use	19.56 ± 10.211	20.54 ± 9.490
Standard use per day	18.01 ± 9.630	16.43 ± 9.415
Alcohol Craving	28.19 ± 27.924	34.35 ± 24.923
Days abstinent prior to MRI	29.25 ± 0.338	25.64 ± 13.944

Data shown are means ± SD

Significant differences between Controls and Alcohol group (Completers and Non-Completers combined) (p < 0.05)