Table III.

Predicting Tobacco use behaviors of the CCSS sibling population vs. NHIS participants^*

	Current Smoker	Former Smoker	Ever Smoker
	OR (95% CI)	OR (95% CI)	OR (95% CI)
Overall	0.83 (0.73–0.94)**	1.21 (1.08–1.35)**	1.02 (0.93–1.12)
Age at follow-up
18–39 years	0.84 (0.72–0.99)**	1.43 (1.23–1.67)**	1.09 (0.96–1.23)
≥ 40 years	0.81 (0.65–1.00)	1.01 (0.86 –1.19)	0.94 (0.81–1.08)
Sex
Female	0.86 (0.72–1.03)	1.21 (1.04–1.40)**	1.04 (0.91–1.18)
Male	0.80 (0.67–0.97)**	1.21 (1.03–1.42)**	1.00 (0.87–1.15)
Race/Ethnicity
Other	1.07 (0.66–1.74)	1.44 (0.88–2.35)	1.22 (0.85–1.78)
White non-Hispanic	0.82 (0.71–0.93)**	1.20 (1.07–1.34)**	1.01 (0.92–1.11)
Personal Income
0–$19,999	1.08 (0.86–1.37)	1.41 (1.10–1.80)**	1.21 (1.00–1.46)
≥ $20,000	0.72 (0.62–0.85)**	1.14 (1.00–1.30)	0.95 (0.85–1.06)
Education
High School Graduate or Less	1.67 (1.24–2.26)**	1.22 (0.84–1.80)	1.51 (1.15–2.00)**
Greater than High School	0.69 (0.59–0.80)**	1.21 (1.07–1.36)**	0.97 (0.88–1.07)

^*NHIS data were weighted to reflect the distribution of CCSS siblings by age, race/ethnicity, personal income, and education

^**p<0.05