Table 1.
Characteristic | No.a | Established Smoker, No. (% in Row)b |
---|---|---|
Sex | ||
Male | 956 | 203 (21.2) |
Female | 1092 | 150 (13.7) |
Age at follow-up, y | ||
16–17 | 291 | 19 (6.5) |
18 | 528 | 67 (12.7) |
19 | 678 | 142 (20.9) |
20–21 | 551 | 125 (22.7) |
Parental education | ||
High school diploma or less | 351 | 94 (26.8) |
Some college, technical school, or associate’s degree | 513 | 107 (20.9) |
College or graduate degree | 1119 | 135 (12.1) |
Unknown | 65 | 17 (26.2) |
Proportion of close friends who smoke | ||
None | 792 | 22 (2.8) |
<One-quarter | 462 | 23 (5.0) |
One-quarter to one-half | 289 | 60 (20.8) |
>Half | 489 | 245 (50.1) |
Parent smokes | ||
No | 1436 | 175 (12.2) |
Yes | 611 | 178 (29.1) |
Enrolled in school at follow-up | ||
No | 375 | 167 (44.5) |
Yes | 1672 | 185 (11.1) |
School performance | ||
Excellent | 443 | 39 (8.8) |
Good | 1012 | 144 (14.2) |
Average or below average | 590 | 169 (28.6) |
Sensation seeking quartile | ||
1 | 527 | 50 (9.5) |
2 | 602 | 84 (14.0) |
3 | 468 | 72 (15.4) |
4 | 451 | 147 (32.6) |
Rebelliousness quartile | ||
1 | 665 | 68 (10.2) |
2 | 562 | 70 (12.5) |
3 | 391 | 76 (19.4) |
4 | 430 | 139 (32.3) |
Baseline movie smoking exposure quartile | ||
1 | 512 | 44 (8.6) |
2 | 512 | 66 (12.9) |
3 | 513 | 101 (19.7) |
4 | 511 | 142 (27.8) |
Played team sports in past year | ||
No | 885 | 228 (25.8) |
Yes | 1163 | 125 (10.8) |
Sample size may not always total 2048 owing to missing values.
All χ2 comparisons are significant with P<.001.