TABLE 2.

Relative Risk Ratios (RRRs) and 95% Confidence Intervals (CIs) for Current Smoking: Virginia Youth Tobacco Survey, 2005, and the Census 2000 School District Demographics Project

Variable	Light Smokers, RRR (95% CI)	Medium Smokers, RRR (95% CI)	Heavy Smokers, RRR (95% CI)
Age, y	1.28 (1.17, 1.40)	1.85 (1.54, 2.22)	1.77 (1.58, 1.99)
Race/ethnicity
Non-Latino White (Ref)	1.00	1.00	1.00
Black	0.72 (0.47, 1.12)	0.69 (0.32, 1.50)	0.34 (0.19, 0.59)
Other	0.47 (0.24, 0.92)	1.06 (0.46, 2.45)	0.44 (0.22, 0.90)
Socioeconomic disadvantagea	1.49 (1.25, 1.78)	1.36 (0.95, 1.96)	1.65 (1.37, 1.98)

Note. Light smokers smoked on 1–5 of the past 30 days; medium smokers smoked on 6–19 of the past 30 days; heavy smokers smoked on ≥ 20 of the past 30 days. Total number of respondents was 2208. For all RRRs, P < .05 for fixed-effect F test.

^aStandardized to a mean of 0 and standard deviation of 1.