Table 2

Smokeless tobacco (ST) use within the 30 days preceding the survey, by number of days of cigarette smoking within the preceding 30 days

Number of days smoked cigarettes in the preceding 30 days	Unweighted sample size	Number of days used ST of preceding 30 days
		All 30 days		1–29 days		0 days
		%	SE	%	SE	%	SE
Middle school
All 30 days	79	26.3	6.0	20.0	5.5	53.7	7.9
1–29 days	443	1.4	0.6	15.7	2.3	82.9	2.4
0 days	5987	0.2	0.1	1.4	0.3	98.4	0.3
Total	6509	0.6	0.1	2.6	0.4	96.9	0.4
High school
All 30 days	390	9.6	1.9	25.2	2.8	65.2	3.3
1–29 days	873	4.7	1.0	17.6	1.9	77.7	2.4
0 days	4994	1.2	0.3	3.8	0.5	95.1	0.6
Total	6257	2.3	0.4	7.2	0.7	90.5	1.0

Male middle school students (grades 6–8) and high school students (grades 9–12). National Youth Tobacco Survey, 2004.