Usually bought in a store % (±95% CI) | Usually bought in a vending machine % (±95% CI) | Usually gave someone else money to buy % (±95% CI) | Usually borrowed from someone % (±95% CI) | Usually stole % (±95% CI) | Usually obtained in some other way % (±95% CI) | |
---|---|---|---|---|---|---|
*Among high school students who were current smokers (smoked cigarettes on one or more of the 30 days preceding the survey) and under age 18 years (unweighted n's = 2989 in 1995; 4108 in 1997; 3631 in 1999). Data are from the 1995, 1997, and 1999 Youth Risk Behavior Survey. | ||||||
†Test for trend was calculated from a logistic regression model, controlling for sex, grade, and race/ethnicity (NS, not significant). | ||||||
Year | ||||||
1995 | 38.7 (4.6) | 2.2 (0.9) | 15.8 (3.6) | 32.9 (4.0) | 4.2 (1.3) | 6.2 (1.7) |
1997 | 29.8 (4.8) | 1.7 (0.7) | 22.9 (4.0) | 33.0 (2.9) | 3.6 (1.3) | 9.0 (1.9) |
1999 | 23.5 (4.5) | 1.1 (0.8) | 29.9 (4.0) | 30.4 (3.8) | 4.4 (1.2) | 10.7 (2.1) |
Linear trend (p)† | <0.001 | NS | <0.001 | NS | NS | 0.004 |