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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Drug Alcohol Depend. 2014 Mar 5;138:169–176. doi: 10.1016/j.drugalcdep.2014.02.698

Table 3.

Concurrent validity of the Type A/B classification: Associations with alcohol consumption and problem severity at baseline.

Baseline Outcomes Type A (n=832) Type B (n=340)
Alcohol consumption Mean (SE) Mean (SE)
    Number of days drank any alcohol 147 (5) 212 (8)***
    Number of drinks consumed on days when drank alcohol 5.65 (0.20) 8.32 (0.40)***
    Largest number of drinks consumed on days when drank alcohol 11.68 (0.40) 16.55 (0.65)***
    Average daily number of drinks consumed 3.79 (0.26) 7.90 (0.53)***
Lifetime alcohol problem severity
    Number of episodes of alcohol dependence 1.45 (0.05) 3.69 (0.65)**
    Months of longest episode of alcohol dependence 15.47 (1.26) 33.00 (4.00)***
Comorbid conditions
    Drug dependence (%) 3.6 (0.9) 21.1 (2.7)***
    Mental health composite score (SF-12) 48.90 (0.44) 44.52 (0.82)***
    Physical health composite score (SF-12) 54.20 (0.33) 51.09 (0.66)***

* p<0.05

**

p<0.01

***

p<0.001