. 2013 May 9;10:E73. doi: 10.5888/pcd10.120290

Table 3. Multivariate Logistic Regression Analyses Examining Factors Associated With Bidi and Hookah Use Among Youth in Grades 9–12, Youth Smoking Survey, Canada, 2010^a .

Characteristic or Behavior	Model 1^b		Model 2^c		Model 3^d		Model 4^e
	Ever Use of Bidis		Current Use of Bidis		Ever Use of Hookahs		Current Use of Hookahs
	OR^f (95% CI)	P Value^g	OR^f (95% CI)	P Value^g	OR^f (95% CI)	P Value^g	OR^f (95% CI)	P Value^g
Sex
Female	1 [Reference]
Male	2.5 (2.0–3.1)	<.001	1.5 (1.1–2.1)	.01	1.1 (1.0–1.2)	.16	1.3 (1.1–1.4)	<.01
Race/ethnicity
White	1 [Reference]
Black, Latin, other	4.6 (3.7–5.8)	<.001	15.6 (10.8–22.5)	<.001	2.2 (1.9–2.5)	<.001	2.4 (2.1–2.9)	<.001
Asian	3.2 (2.2–4.7)	<.001	14.9 (8.9–24.9)	<.001	1.5 (1.3–1.8)	<.001	1.5 (1.2–2.0)	<.01
Aboriginal	1.1 (0.8–1.7)	.56	3.3 (1.9–5.7)	<.001	0.6 (0.5–0.7)	<.001	0.8 (0.6–1.1)	.20
Cigarette smoking status^h
Nonsmoker	1 [Reference]
Former	1.9 (1.2–3.1)	.01	0.2 (0–0.7)	.02	5.5 (4.4–6.9)	<.001	3.3 (2.5–4.4)	<.001
Current	4.1 (3.3–5.2)	<.001	6.7 (4.8–9.5)	<.001	2.4 (2.1–2.6)	<.001	3.0 (2.5–3.5)	<.001
Marijuana use status^h
Nonuser	1 [Reference]
Occasional user	4.9 (3.3–7.2)	<.001	23.9 (10.8–53.0)	<.001	4.8 (4.2–5.4)	<.001	5.6 (4.4–7.1)	<.001
Frequent user	13.1 (9.0–19.1)	<.001	50.4 (22.9–111.0)	<.001	11.6 (10.1–13.3)	<.001	14.1 (11.1–18.0)	<.001
Current alcohol use status^h
Nondrinker	1 [Reference]
Occasional drinker	1.3 (0.9–2.0)	.16	0.4 (0.2–0.7)	<.01	2.5 (2.1–3.0)	<.001	2.8 (2.1–3.8)	<.001
Frequent drinker	2.2 (1.5–3.4)	<.001	1.3 (0.8–2.3)	.29	3.3 (2.8–4.0)	<.001	3.6 (2.7–5.0)	<.001

Abbreviations: OR, odds ratio; CI, confidence interval.

Analyses were conducted using weighted data. 

Model 1: 1 = yes (n = 550), 0 = no (n = 27,123). 

Model 2: 1 = yes (n = 264), 0 = no (n = 26,937). 

Model 3: 1 = yes (n = 2,166), 0 = no (n = 25,507). 

Model 4: 1 = yes (n = 881), 0 = no (n = 26,320). 

Odds ratios adjusted for all other variables in the table and controlling for grade and province. 

Calculated by using Wald χ² tests.  

See Methods section for definitions of characteristics.

Table 3. Multivariate Logistic Regression Analyses Examining Factors Associated With Bidi and Hookah Use Among Youth in Grades 9–12, Youth Smoking Survey, Canada, 2010a .