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Table 1 Preintervention versus postintervention comparisons of PFL participants’ reports of their substance use in the 30 days before preintervention

From: Reports of past alcohol and drug use following participation in a motivation enhancing intervention: Implications for clinical assessment and program evaluation

 

Percent

Time3

 

Preintervention

Postintervention

Wald χ2

p

   

(df = 1)

 

Peak drinks1

  

656.37

<.001

 0 drinks

35.3%

28.9%

  

 1-3 drinks

22.9%

17.7%

  

 4-6 drinks

17.2%

17.2%

  

 7-9 drinks

9.1%

11.8%

  

 10-12 drinks

7.0%

9.6%

  

 13+ drinks

8.4%

14.8%

  

Usual drinks1

  

615.34

<.001

 0 drinks

34.8%

27.8%

  

 1-3 drinks

35.9%

30.0%

  

 4-6 drinks

17.1%

22.0%

  

 7-9 drinks

6.2%

10.1%

  

 10+ drinks

6.0%

10.1%

  

Marijuana or other drug use2

  

317.90

<.001

 Never

85.5%

78.7%

  

 1x/week or less

7.3%

11.1%

  

 More than 1x week

7.2%

10.2%

  
  1. 1 N = 8,387.
  2. 2 N = 8,366.
  3. 3Estimated from GEE analysis.
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Substance Abuse Treatment, Prevention, and Policy

ISSN: 1747-597X