Ever purchased | Usually purchased | |||||
---|---|---|---|---|---|---|
Adjusted OR† | Adjusted OR† | |||||
% (±95% CI) | OR | (95% CI)‡ | % (±95% CI) | OR | (95% CI)‡ | |
*Unweighted n. | ||||||
†Adjusted for all variables presented in the table. | ||||||
‡95% CIs that do not include 1.0 indicate significance at the p = 0.05 level. | ||||||
Sex | ||||||
Male | 4.3 (2.5) | 1.0 | Referent | 1.1 (0.7) | 1.0 | Referent |
Female | 4.7 (2.8) | 1.1 | (0.7 to 1.8) | 2.5 (1.0) | 2.0 | (0.9 to 4.6) |
Race/ethnicity | ||||||
White | 4.9 (2.7) | 1.0 | Referent | 2.0 (0.7) | 1.0 | Referent |
Black | 1.8 (1.7) | 0.4 | (0.1 to 1.3) | 1.0 (1.5) | 0.5 | (0.1 to 2.5) |
Hispanic | 3.6 (2.0) | 0.9 | (0.3 to 2.5) | 1.0 (1.4) | 0.9 | (0.2 to 4.5) |
Other | 5.7 (5.4) | 1.3 | (0.4 to 4.2) | 0.0 (0.0) | 0.0 | (0.0 to 0.0) |
Age (years) | ||||||
18–24 | 4.1 (2.6) | 1.0 | Referent | 0.7 (0.8) | 1.0 | Referent |
25–44 | 3.1 (2.4) | 0.6 | (0.3 to 1.2) | 0.8 (0.5) | 1.1 | (0.3 to 4.3) |
45–64 | 7.2 (3.5) | 1.1 | (0.3 to 2.5) | 4.0 (1.8) | 4.4 | (1.1 to 17.1) |
65+ | 6.4 (5.6) | 0.9 | (0.2 to 3.3) | 2.7 (3.7) | 2.9 | (0.4 to 19.3) |
Education | ||||||
High school or less | 3.8 (1.5) | 0.6 | Referent | 1.7 (0.9) | 1.3 | Referent |
Some college | 4.8 (1.9) | 1.3 | (0.7 to 2.4) | 1.9 (1.1) | 1.4 | (0.6 to 3.2) |
College degree or more | 5.8 (2.2) | 1.6 | (0.9 to 3.0) | 1.4 (1.2) | 0.6 | (0.2 to 1.8) |
Cigarettes per day | ||||||
⩽10 | 3.3 (1.3) | 1.0 | Referent | 1.3 (0.8) | 1.0 | Referent |
11–20 | 4.5 (1.6) | 1.2 | (0.6 to 2.4) | 1.8 (1.0) | 0.6 | (0.2 to 1.8) |
21–30 | 4.7 (3.6) | 1.1 | (0.4 to 3.5) | 3.0 (3.0) | 0.7 | (0.2 to 3.0) |
⩾31 | 14.4 (7.8) | 3.9 | (1.5 to 10.2) | 3.4 (3.1) | 1.0 | (0.2 to 3.9) |
Time to first cigarette | ||||||
⩽30 mins after waking | 6.2 (2.8) | 1.4 | (0.7 to 2.6) | 3.1 (1.3) | 3.3 | (1.2 to 9.2) |
30+ mins after waking | 3.4 (2.4) | 1.0 | Referent | 0.8 (0.6) | 1.0 | Referent |
Past year quit attempt | ||||||
Yes | 3.3 (2.0) | 1.0 | Referent | 1.1 (0.7) | 1.0 | Referent |
No | 6.0 (3.0) | 1.8 | (1.1 to 3.0) | 2.5 (1.1) | 1.8 | (0.9 to 4.2) |
Year | ||||||
2000 | 1.7 (1.0) | 1.0 | Referent | 1.1 (0.9) | 1.0 | Referent |
2001 | 2.7 (1.2) | 1.6 | (0.7 to 3.4) | 0.8 (0.6) | 0.6 | (0.2 to 1.6) |
2002 | 10.0 (2.9) | 6.4 | (3.0 to 13.4) | 3.6 (1.6) | 2.9 | (1.1 to 7.7) |
Overall | 4.5 (2.4) | 1.7 (0.6) |