Table 3

Secular trends in minors' usual source of cigarettes, 1995-1999*

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
199538.7 (4.6)2.2 (0.9)15.8 (3.6)32.9 (4.0)4.2 (1.3)6.2 (1.7)
199729.8 (4.8)1.7 (0.7)22.9 (4.0)33.0 (2.9)3.6 (1.3)9.0 (1.9)
199923.5 (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)†<0.001NS<0.001NSNS0.004