Table 3.

Adjusted logistic regression model predicting a 30-day quit attempt among current smokers (TUS-CPS 2010–2011, N= 24,537)

	Adjusted odds ratio (95% CI)b, c
Tobacco use status
Exclusive smokers (reference)	1
Dual users	1.09 (0.88–1.37)
Cigarette consumption
< 12 cigarettes per month (reference)	1
0 to 10 cigarettes per day	0.42 (0.38–0.47)***
11 to 20 cigarettes per day	0.24 (0.22–0.27)***
≥ 21 cigarettes per day	0.14 (0.11–0.12)***
Time to first cigarette
Time to first cigarette ≥30 minutes after waking	1
Time to first cigarette < 30 minutes after waking	0.64 (0.58–0.69)***
Age
18–24 years (reference)	1
25–34 years	1.11 (0.97–1.27)
35–49 years	0.95 (0.85–1.07)
50–64 years	0.87 (0.77–0.98)*
≥ 65 years	0.94 (0.89–1.10)
Sex
Female (reference)	1
Male	1.03 (0.96–1.09)
Race/ethnicity
White (reference)	1
Non-white	1.19 (1.09–1.28)***
Education
< High school (reference)	1
High school	1.07 (0.97–1.27)
Some college	1.14 (1.03–1.27)*
College graduate	1.13 (1.01–1.28)*
Age of smoking initiation
Age of smoking initiation > 15 years (reference)
Age of smoking initiation ≤ 15 years	1.16 (1.07–1.25)***

^*p < 0.05

^**p< 0.005

^***p<0.001

p-value for interaction term between tobacco use status and consumption =0.253

p-value for interaction term between tobacco use status and smoking within 30 minutes of waking = 0.91