Table 2

Logistic regression predicting internet cigarette purchase attempts among California 10th and 12th grade smokers (n = 1689). Independent Evaluation of the California Tobacco Control, Prevention, and Education Program

VariableOR95% CI
Age (years)0.55(0.37 to 0.82)
Sex
Male1.00
Female0.16(0.06 to 0.43)
Ethnicity
White1.00
Latino0.87(0.28 to 2.67)
Asian/Pacific Islander1.08(0.41 to 2.87)
Other2.10(0.90 to 4.90)
Frequent smoker (smoked at least 20 of the past 30 days)
No1.00
Yes2.26(1.08 to 4.73)
Asked for ID in past month
No1.00
Yes2.04(0.91 to 4.56)
Refused purchase in past month
No1.00
Yes0.51(0.20 to 1.27)
Perceived access to cigarettes
Very hard or sort of hard1.00
Very easy or sort of easy0.22(0.10 to 0.50)
  • All estimates are controlled for the random effects of stratum, county, and school.