Table 1.

Prevalence of tobacco product use and nicotine vaping comparing reservation AI (2021–2022) and MTF (2022) students

	8th grade		10th grade		12th grade
Type of nicotine use	AI (%) (95% CI)	MTF (%) (95% CI)	AI (%) (95% CI)	MTF (%) (95% CI)	AI (%) (95% CI)	MTF (%) (95% CI)
Cigarettes
Lifetime	8.3* (7.6, 9.0)	6.1 (5.3, 7.1)	15.2** (14.4, 16.2)	10.2 (9.0, 11.6)	21.4* (20.2, 22.6)	16.8 (14.6, 19.3)
30 day	1.7* (1.4, 1.9)	0.8 (0.6, 1.1)	3.5** (3.2, 3.9)	1.7 (1.2, 2.3)	4.8 (4.2, 5.3)	4.0 (3.1, 5.1)
Daily	0 9** (0.8, 1.0)	0.3 (.2, .5)	2.1** (1.8, 2.5)	0.7 (0.5, 0.9)	2.0 (1.7, 2.2)	1.6 (1.2, 2.1)
½+ pack/daily	0.0 (NA)	0.1 (0.1, 0.2)	0.8** (0.6, 1.0)	0.3 (0.2, 0.5)	0.7 (0.6, 0.9)	0.9 (0.7, 1.3)
Vaping Nicotine
Lifetime	18.5 (17.4, 19.6)	17.0 (15.0, 19.1)	27.7 (26.6, 28.9)	28.2 (25.1, 31.5)	32.6* (31.3, 34.0)	38.8 (35.4, 42.3)
Annual	12.8 (13.0, 13.7)	12.0 (10.5, 13.7)	22.4 (21.2, 23.7)	20.5 (17.8, 23.3)	23.7 (22.5, 24.9)	27.3 (24.3, 30.5)
30 day	9.3* (8.7, 10.0)	7.1 (6.0, 8.3)	16.4 (15.6, 17.3)	14.2 (12.1, 16.6)	20.1 (19.0, 21.2)	20.7 (18.2, 23.5)
Daily	1.4 (1.2, 1.6)	1.2 (0.8, 1.6)	5.8** (5.2, 6.4)	3.3 (2.6, 4.1)	6.8 (6.2, 7.5)	6.2 (5.0, 7.7)
Smokeless Tobacco
Lifetime	5.4* (5.1, 5.9)	3.9 (3.2, 4.9)	8.8** (8.0, 9.7)	5.8 (5.0, 6.8)	12.1 (11.4, 12.8)	10.3 (8.2, 13.0)
30 day	0.9 (0.8, 1.1)	1.2 (0.8, 1.6)	1.8 (1.6, 2.0)	2.5 (2.0, 3.1)	2.4 (2.1, 2.7)	3.2 (2.2, 4.7)
Daily	0.3 (0.2, 0.4)	0.3 (0.1, 0.5)	0.6 (0.5, 0.7)	0.7 (0.5, 1.0)	0.9 (0.8, 1.0)	1.1 (0.6, 2.2)

^*p < 0.05;

^**p<.01

AI = American Indian

MTF = Monitoring the Future

CI = confidence interval

NA = not asked