TABLE 3.

Odds of Menthol Use in the Total Exposure Study

Characteristic	No.	Percentage menthol	OR for menthol*	95% CI
Gender
Male	1419	26.8	1.00	Reference
Female	1922	34.6	2.13	1.78 to 2.56
Age
21–34 years	1041	29.3	1.00	Reference
35–49 years	1328	35.8	1.31	1.07 to 1.62
50+ years	972	27.2	1.13	0.90 to 1.42
Race
White	2727	21.9	1.00	Reference
African American	614	73	9.53	7.52 to 12.09
Education
<High school graduate	277	41.2	1.00	Reference
High school graduate	2501	30.2	0.85	0.62 to 1.16
College graduate	543	30.9	1.25	0.86 to 1.82
Income
<$20,000	978	38.2	1.00	Reference
$20,000–$49,999	1534	29.4	1.04	0.84 to 1.27
≥$50,000	817	26.2	1.08	0.84 to 1.39
Tar Yield Category
≤2.9 mg	480	32.1	1.00	Reference
3.0–6.9 mg	892	22.2	0.98	0.73 to 1.30
7.0–12.9 mg	992	24.1	1.26	0.95 to 1.66
≥13.0 mg	977	46.4	2.25	1.72 to 2.96
Time until first cigarette
≤5 minutes	997	33.8	0.88	0.62 to 1.25
6–30 minutes	1421	31.3	0.90	0.66 to 1.23
30–60 minutes	486	24.5	0.70	0.50 to 0.98
≥60 minutes	428	32.2	1.00	Reference
Hate most to give up
First in the morning	1592	34.2	1.10	0.91 to 1.32
All other	1736	27.9	1.00	Reference
How many smoked/day
10 or less	740	40	1.00	Reference
11–20	1624	29.9	0.97	0.76 to 1.24
21–30	725	25.7	1.04	0.76 to 1.41
31 or more	230	30.4	1.40	0.93 to 2.10
↑ during 1 h waking/rest of day
No	1917	30.9	1.00	Reference
Yes	1405	31.3	0.94	0.78 to 1.14
Refrain forbidden places
No	2480	30.8	1.00	Reference
Yes	844	32.4	1.08	0.88 to 1.32
Ill in bed most of the day
No	2010	30	1.00	Reference
Yes	1317	32.8	1.11	0.92 to 1.34

^*Odds ratio from logistic regression model adjusting for all other factors listed in the Table.

CI = confidence interval; OR = odds ratio.