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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Addiction. 2013 Mar 21;108(6):1084–1094. doi: 10.1111/add.12108

Table 1.

Demographic characteristics of the patients randomized to PBO and VEN-XR (N=103)a

PBO VEN-XR
Characteristic (N=52) (N=51) p-value
Demographic Characteristics Mean SD Mean SD
Age (years) 35.9 9.3 34.2 10.8 0.40
n % n %
Male 41 78.9 35 68.6 0.24
Race/Ethnicity 0.28
Hispanic 14 26.9 13 25.5
Black 12 23.1 10 19.6
White 21 40.4 26 51.0
Asian 1 1.9 2 3.9
Other 4 7.7 0 0
Education 0.46
≤ High School 12 23.5 17 33.3
Some College 29 56.9 28 54.9
College & Graduate School 10 19.6 6 11.8
Employment Status 0.49
Full-Time 19 37.3 22 43.1
Unemployed/Others 32 62.8 29 56.9
Currently Married 9 17.7 10 19.6 0.80
Clinical Characteristics n % n %
High Depression (>20 HAM-D score) 19 36.5 17 33.3 0.73
High MJ Use (≥ 21 joints per week) 29 55.8 33 64.7 0.35
Mean SD Mean SD
Marijuana Use Days Per Month 27.5 6.5 27.4 4.5 0.91
Grams of Marijuana used per using day 2.4 2.9 2.7 2.8 0.63
Joints of Marijuana used per week 36.3 40.6 38.2 36.6 0.81
Marijuana Dollar Amount Per Month 647.6 632.6 779.1 662.5 0.32
Years of Regular Marijuana use 16.0 9.0 15.1 10.6 0.63
Baseline HAMD-21 Score 19.0 4.6 17.9 4.2 0.21
Baseline HAMD-17 Score 17.3 4.0 16.3 3.7 0.19
Baseline Creatinine-Corrected Urine (ng/mg) 926 1165 1139 1530 0.43
a

Frequencies may not sum to N=103 due to missing values. One patient did not report her education level, one patient did not report his employment status, and one patient did not report his marital status. Four patients did not report their grams of marijuana use per day and three patients did not report their years of regular marijuana use. Percentages may not add up to 100 due to rounding.