Table 3.

Comparing hookah-only users and dual users with cigarette-only users by college status, tobacco-related attitudes, and binge drinking

	Hookah-Only User	Dual User	Cigarette-Only
Characteristic/Attitude	RRR (95% CI)	RRR (95% CI)	User
College Status
In college	2.53 (1.79–3.59)***	1.34 (1.12–1.63)**	Ref
Graduated	1.54 (1.02–2.34)*	.92 (.73–1.16)	Ref
No college	Ref	Ref	Ref
Anti-SHS	1.03 (.78–1.36)	.76 (.62–.92)**	Ref
Anti-Tobacco Industry	2.21 (1.70–2.92)***	1.18 (.96–1.45)	Ref
Ad Receptivity	.70 (.52–.93)*	1.25 (1.06–1.48)**	Ref
Binge Drinking	.99 (.74–1.33)	2.03 (1.63–2.54)***	Ref

Notes: The three categories “Nonsmoker,” “Hookah-Only User,” and “Dual User” are compared with the omitted reference category of “Cigarette-Only User.” The model included a category for “Nonsmoker;” results are not displayed in the table. The model also controlled for sex, sexual orientation, age, ethnicity, time, and location, although results are not displayed in the table.

CI = confidence interval; RRR = relative risk ratio; SHS = secondhand smoke

^*P<.05

^**P<.01

^***P<.001