Lifetime and current use of tobacco by year, grades 7–8 and 9–12, and race/ethnicity: Massachusetts Prevalence Study
| Grades 7–8 | Grades 9–12 | |||||||
|---|---|---|---|---|---|---|---|---|
| Lifetime† | Current‡ | Lifetime† | Current‡ | |||||
| 1996 | 1999 | 1996 | 1999 | 1996 | 1999 | 1996 | 1999 | |
| Cell entries are percentages of students reporting use. Numbers in parentheses are 95% confidence intervals. | ||||||||
| *Significant difference between 1996 and 1999 at p<0.05 (design adjusted χ2). | ||||||||
| **Significant difference 1996 versus 1999 at p<0.01 (design adjusted χ2). | ||||||||
| †Used at least once in lifetime. | ||||||||
| ‡Used at least once in 30 days before survey. | ||||||||
| Black | n=403 | n=307 | n=403 | n=307 | n=849 | n=504 | n=849 | n=504 |
| Cigarettes | 41.0 | 27.6** | 15.9 | 10.0* | 48.8 | 36.1** | 18.8 | 15.3 |
| (33.1 to 49.4) | (22.4 to 33.4) | (11.8 to 21.1) | (7.2 to 13.6) | (42.1 to 55.6) | (31.3 to 41.2) | (14.0 to 24.7) | (11.6 to 20.0) | |
| Smokeless tobacco | 7.0 | 4.3 | 0.8 | 1.7 | 10.8 | 5.4* | 1.1 | 1.3 |
| (3.3 to 14.0) | (2.7 to 6.9) | (0.3 to 2.0) | (0.8 to 3.6) | (6.1 to 18.3) | (3.5 to 8.3) | (0.3 to 4.8) | (0.5 to 3.4) | |
| Cigars | 23.0 | 16.0 | 6.5 | 1.9 | 27.0 | 17.6* | 9.2 | 4.9* |
| (17.4 to 29.7) | (12.0 to 21.1) | (2.9 to 13.9) | (0.5 to 6.3) | (21.3 to 33.6) | (13.6 to 22.5) | (6.1 to 13.7) | (3.5 to 7.0) | |
| Hispanic | n=536 | n=368 | n=536 | n=368 | n=728 | n=443 | n=728 | n=443 |
| Cigarettes | 34.1 | 27.6 | 18.1 | 13.8 | 52.4 | 45.1 | 30.6 | 22.6 |
| (28.1 to 40.6) | (22.8 to 33.0) | (13.0 to 24.7) | (9.8 to 19.2) | (45.8 to 58.9) | (38.5 to 52.0) | (23.6 to 38.6) | (17.3 to 28.9) | |
| Smokeless tobacco | 6.6 | 4.9 | 3.1 | 2.2 | 11.1 | 6.5 | 1.3 | 3.0 |
| (3.5 to 12.1) | (2.8 to 8.3) | (1.0 to 9.1) | (0.9 to 5.1) | (7.0 to 17.3) | (3.9 to 10.7) | (0.3 to 5.1) | (1.3 to 6.7) | |
| Cigars | 17.2 | 18.5 | 5.4 | 5.0 | 28.2 | 25.9 | 9.6 | 8.1 |
| (12.3 to 23.5) | (14.2 to 23.8) | (2.6 to 10.7) | (2.7 to 8.8) | (22.3 to 35.0) | (20.3 to 32.4) | (5.3 to 16.8) | (5.3 to 12.4) | |
| White | n=966 | n=1470 | n=966 | n=1470 | n=1747 | n=2251 | n=1747 | n=2251 |
| Cigarettes | 33.5 | 23.5** | 22.0 | 12.8** | 57.1 | 55.5 | 38.0 | 33.0* |
| (27.7 to 40.0) | (20.6 to 26.6) | (17.1 to 27.8) | (10.5 to 15.5) | (53.8 to 60.3) | (52.9 to 58.2) | (34.9 to 41.3) | (30.2 to 36.0) | |
| Smokeless tobacco | 9.5 | 4.4** | 2.6 | 1.2* | 22.6 | 15.0** | 6.6 | 3.6** |
| (5.9 to 14.8) | (3.4 to 5.6) | (1.7 to 3.9) | (0.6 to 2.1) | (19.7 to 25.9) | (12.6 to 17.7) | (5.4 to 8.0) | (2.7 to 4.7) | |
| Cigars | 23.4 | 17.9* | 8.3 | 4.3* | 42.1 | 41.6 | 15.9 | 12.5* |
| (19.6 to 27.7) | (15.2 to 20.9) | (5.0 to 13.3) | (3.3 to 5.5) | (38.4 to 45.8) | (38.9 to 44.3) | (13.6 to 18.4) | (11.0 to 14.1) | |