Table 3.

Logistic Regression Analysis Predictors of Use of NRT in Lifetime Smokers Aged 25-44 (N = 9216)

Model§	OR	95% CI	P value
Use of NRT
Race/Ethnicity
Caucasian	1.0	Reference
African American	0.76	0.63, 0.91	<.01
Latino	0.76	0.54, 1.06	.11
Asian American	0.98	0.60-1.60	.95
Gender
Female	1.0	Reference
Male	0.73	0.65-0.82	<.001
Ever used other tobacco products
No	1.0	Reference
Yes	1.19	1.07, 1.35	<.01
Time to first cigarette, when smoking the most
> 30 minutes after waking	1.0	Reference
≤30 minutes after waking	2.13	1.91, 2.38	<.001
Cigarettes per day, when smoking the most**	1.76	1.66, 1.86	<.001
Age	1.00	0.99-1.01	.34
Education††	1.07	1.01, 1.13	.02

NRT, nicotine replacement therapy; OR, odds ratio; CI, confidence interval

^§Logistic regression models controlled for site. All possible interactions for the variables selected for the multivariate model were tested, but were not statistically significant at the 0.05 level. A forced-entry simultaneous model of the significant covariates with race/ethnicity showed similar results.

^**Cigarettes per day treated as an ordinal variable.

^††Education treated as an ordinal variable.