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Table 1 Group Means and Percentage Scores on Outcome Variables

From: Successful and unsuccessful cannabis quitters: Comparing group characteristics and quitting strategies

Measure

Quitter mean (SD) or %

Non-quitter mean (SD) or %

df

t

χ2

p

Age

28.38 (11.36)

27.60 (8.62)

164

0.50

 

.62

Age/initiation

16.91 (4.86)

15.77 (2.91)

164

1.81

 

.72

Use (days/wk)

3.79 (2.31)

4.81 (2.22)

164

2.87

 

<.01

Quit attempts

6.18 (15.86)

6.45 (12.07)

164

0.12

 

.09

SDS

2.26 (0.84)

2.60 (0.75)

164

2.67

 

<.01

POC Behavioral

2.83 (0.96)

2.63 (0.65)

164

1.55

 

.12

POC Experiential

2.69 (0.92)

2.62 (0.65)

164

0.50

 

.61

Depression

26.44 (11.07)

32.44 (11.64)

164

3.39

 

<.01

Anxiety

26.51 (10.86)

29.12 (9.31)

164

1.65

 

.10

Stress

29.85 (11.33)

34.33 (10.66)

164

2.60

 

.01

Gender (male)

57.5%

62.8%

1

 

0.49

.48

Married

29.9%

23.1%

1

 

0.98

.32

Uni Education

67.8%

48.7%

1

 

8.00

<.01

Formal tx

26.4%

17.9%

1

 

1.72

.19

EOU (frequent)

6.9%

39.8%

1

 

15.75

<.001

  1. Note: N = 165; SDS = Severity of Dependence Scale; EOU = Exposure to other users.
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Substance Abuse Treatment, Prevention, and Policy

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