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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Am J Health Behav. 2014 Mar;38(2):180–189. doi: 10.5993/AJHB.38.2.3

Table 3. Binary Logistic Regression Indicating Factors Associated with Alternative Tobacco Product Use among College Students.

Variable Model A Model B


OR CI p OR CI p
Smoking Status
 Nonsmoker Ref -- -- Ref -- --
 Nondaily smoker 9.74 7.87, 12.07 <.001 6.43 4.92, 8.40 <.001
 Daily smoker 4.33 3.39, 5.54 <.001 2.79 1.92, 4.05 <.001

Age 0.96 0.94, 0.98 <.001

Sex
 Male Ref -- --
 Female 0.41 0.33, 0.51 <.001

Ethnicity
 White Ref -- --
 Black 1.73 1.37, 2.24 <.001
 Other 1.36 1.01, 1.84 .02

Type of School
 4-year Ref -- --
 2-year 0.95 0.75, 1.22 .71

Number of Friends that Smoke 1.06 0.98, 1.15 .13

Live with a Smoker
 No Ref -- --
 Yes 0.87 0.68, 1.11 .26

Attitudes Toward Smoking 0.98 0.97, 0.99 <.001

Classifying a Smoker Scale 1.02 1.01, 1.03 .004

PHQ-2: Depressive Symptoms
 No Ref -- --
 Yes 1.15 0.83, 1.60 .41

Sensation Seeking 1.14 1.02, 1.27 .008

Number of Days of Alcohol Use,
Past 30 Days 1.05 1.03, 1.07 <.001

Marijuana Use, Past 30 Days 4.00 3.13, 5.12 <.001

Note. Model A: Nagelkerke R2 = 0.195; Model B: Nagelkerke R2 = 0.351