Roll-your-own tobacco use among Canadian youth: is it a bigger problem than we think?

BMC Public Health

Table 2 Logistic regression analyses examining characteristics associated with roll-your-own (RYO) tobacco ever use and current use among current smokers in grades 9 to 12, 2008-2009, Canada

Adjusted Odds Ratio (95% CI)^§
	Roll-your-own Tobacco Ever Use^a	Roll-your-own Tobacco Current Use^b
Sex
Female	1.00	1.00
Male	1.39 (1.18, 1.62)***	1.27 (1.05, 1.53)*
Grade
9	1.00	1.00
10	0.80 (0.62, 1.03)	0.92 (0.69, 1.23)
11	1.02 (0.80, 1.31)	0.65 (0.48, 0.86)**
12	0.62 (0.48, 0.81)***	0.40 (0.29, 0.54)***
Smoking status
Current occasional smoker	1.00	1.00
Current daily smoker	2.35 (2.01, 2.74)***	1.75 (1.40, 2.19)***
Frequency of marijuana use
Never used marijuana	1.00	1.00
Has tried but does not use monthly	1.72 (1.23, 2.40)**	1.56 (0.95, 2.54)
Uses once a month or more	2.24 (1.67, 2.99)***	2.74 (1.79, 4.20)***
Weekly spending money
$0	1.00	1.00
$1 to $20	0.89 (0.65, 1.22)	0.67 (0.47, 0.96)*
$21 to $100	0.91 (0.67, 1.22)	0.44 (0.31, 0.61)***
More than $100	0.68 (0.50, 0.92)*	0.45 (0.31, 0.64)***
Average number of cigarettes per day
A few puffs or 1 cigarette		1.00
2 or 3 cigarettes		3.61 (2.10, 6.21)***
4 to 10 cigarettes		4.82 (2.82, 8.25)***
11 or more cigarettes		6.52 (3.72, 11.40)***
c statistic	0.681	0.727

Note: § Odds ratios adjusted for all other variables in the table and controlling for Region.
^a 1 = Ever smoked RYO tobacco (n = 1,691), 0 = Never smoked RYO tobacco (n = 1,284).
^b 1 = Currently smokes RYO tobacco (n = 936), 0 = Does not currently smoke RYO tobacco (n = 2,004).
^*p < .05 ^**p < .01 ^***p < .001.

ISSN: 1471-2458