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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Addiction. 2008 Oct;103(10):1622–1628. doi: 10.1111/j.1360-0443.2008.02317.x

Table 1.

Predicted Average Blood Pressure Reduction Associated with a 50% Decrease in Drinking Days by Age Group, Gender, and Ethnicity

Demographic Variable Systolic Blood Pressure Reduction (mm Hg) Diastolic Blood Pressure Reduction (mm Hg)
Age
   Age < 44 (n=667, obs=2,530) 2.6 (p<0.001) ---
   Age ≥ 44 (n=716, obs=2,962) 3.2 (p<0.001) ---
Gender
   Female (n=428, obs=1,695) 3.1 (p<0.001) ---
   Male (n=955, obs=3,797) 3.1 (p<0.001) ---
Ethnicity
   African American (n=108, obs=454) 1.1 (p=0.515) 0.49 (p=0.657)
   Non-African American (n=1,275, obs=5,037) 3.2 (p<0.001) 2.3 (p<0.001)
Ethnicity with adjustment for baseline BP > sample average
   African American (n=108, obs=454) 2.0 (p=0.212) 1.6 (p=0.128)
   Non-African American (n=1,275, obs=5,037) 2.4 (p<0.001) 1.9 (p<0.001)
*

These stratified estimates were adjusted for the other demographic variables (i.e., age estimates were adjusted for gender and ethnicity; gender estimates were adjusted for age and ethnicity; ethnic estimates were adjusted for age and gender).