Table 1.
Characteristics and tobacco use status of study population
| Characteristics | totala (N = 594) | Tobacco Use Groups | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| Past 30-day non-user (n = 418) | Past 30-day non-ST user (n = 72) | Past 30-day dual-user (n = 42) | Past 30-day ST user (n = 62) | |||
| Age in years, mean (SD) | 15.8 (1.2) | 15.7 (1.1) | 16.0 (1.3) | 16.3 (1.1) | 16.5 (1.2) | * |
| Grade in school, n (%) | * | |||||
| 9 | 174 (29) | 138 (33) | 21 (29) | 8 (19) | 7 (11) | |
| 10 | 163 (27) | 123 (29) | 19 (26) | 6 (14) | 15 (24) | |
| 11 | 140 (24) | 97 (23) | 13 (18) | 15 (36) | 15 (24) | |
| 12 | 116 (20) | 59 (14) | 19 (26) | 13 (31) | 25 (40) | |
| Race/ethnicity, n (%) | ||||||
| Hispanic/Latino | 237 (40) | 194 (46) | 29 (40) | 27 (64) | 37 (60) | |
| White (not Hispanic/Latino) | 287 (48) | 172 (41) | 32 (44) | 12 (29) | 21 (34) | |
| Other | 70 (12) | 52 (12) | 11 (15) | 3 (7) | 4 (6) | |
| Parental education, n (%) | ||||||
| ≥ 1 parent with college degree | 327 (59) | 236 (60) | 35 (52) | 26 (67) | 30 (56) | |
| Tobacco ever use, n (%) | ||||||
| Any product | 341 (57) | 165 (39) | 72 (100) | 42 (100) | 62 (100) | * |
| Non-ST tobaccob | 311 (52) | 140 (33) | 72 (100) | 42 (100) | 57 (92) | * |
| Smokeless tobacco | 219 (37) | 77 (18) | 38 (53) | 42 (100) | 62 (100) | * |
| Tobacco past 30-day use, n (%) | ||||||
| Any product | 176 (30) | 0 (0) | 72 (100) | 42 (100) | 62 (100) | * |
| Non-ST tobacco | 114 (19) | 0 (0) | 72 (100) | 42 (100) | 0 (0) | * |
| Smokeless tobacco | 104 (18) | 0 (0) | 0 (0) | 42 (100) | 62 (100) | * |
| Tobacco use ≥ 20 times, n (%) | ||||||
| Any product | 142 (24) | 26 (6) | 40 (56) | 36 (86) | 40 (65) | * |
| Non-ST tobacco | 113 (19) | 24 (6) | 38 (53) | 28 (67) | 23 (37) | * |
| Smokeless tobacco | 73 (12) | 4 (1) | 4 (6) | 29 (69) | 36 (58) | * |
a
Cell counts may not sum to column totals due to missing values for some variables
b
Non-ST tobacco products include: cigarettes, cigars, e-cigarettes, and hookah
*
p < 0.05 for difference over the 4 tobacco use groups: ANOVA (age) or chi-square
Abbreviations: SD = standard deviation; ST = smokeless tobacco