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. Author manuscript; available in PMC: 2019 Feb 13.
Published in final edited form as: J Int Neuropsychol Soc. 2018 Nov 26;25(2):134–145. doi: 10.1017/S1355617718000966

Table 1.

Demographics, Substance Use, and Fitness Characteristics by Substance Group.

Controls (n=42)
% or M (SD)
Range		 CAN (n=37)
% or M (SD)
Range
Age (y) 20.86 (2.70)
16–25		 21.41 (2.19)
17–26
Education (y) 14.26 (2.35)
9–19		 13.84 (1.55)
11–18
Reading Score (WRAT-IV) 106.64 (10.20)
87–133		 104.14 (12.78)
72–133
*BDI-II Total 2.71 (3.12) 0–10 5.32 (4.60) 0–
19
Gender (% female) 55% 32%
% Caucasian 69% 59%
% Not Hispanic/Latino/a 88% 78%
*Past Year Cannabis Use (joints) .38 (1.12)
0–5		 427.73 (432.36)
53–2306
*Lifetime Cannabis Use (joints) 2.32 (4.89)
0–20		 1162.49
(1341.16) 101–
6000
*Past Year Alcohol Use (standard
drinks)		 103.90 (168.22)
0–698.50		 318.37 (282.73)
0–1120.50
*Cotinine Level 1.10 (.58)
0–3		 2.08 (1.77)
0–6
Length of Abstinence (days) 46.48 (26.68)
12–388		 25.24 (7.96)
11–49
VO2 Max Performance (ml/kg/min) 41.25 (10.27)
20.80–62.90		 43.98 (9.05)
25.80–62.80
Weight (lb) 148.85 (22.05)
108.8–194.8		 149.91 (27.81)
103.4–213.4
Height (inches) 66.80 (3.60)
60.50–76.50		 67.05 (3.99)
59.0–75.5
BMI (kg/m2) 23.54 (3.80)
17.4–39.1		 23.54 (4.24)
16.4–33.6
Body fat (%) 22.13 (10.09)
6.4–42.1		 18.67 (8.47)
3.6–40.7

Notes: M = mean; SD = standard deviation.

*

p<.05; length of abstinence measures last use of any substance other than tobacco; length of abstinence data was missing from 9 controls as they denied any history of substance use