12th grade (n=4039) | 10th grade (n=5001) | 8th grade (n=4506) | |
---|---|---|---|
Vaped any substance or smoked regular cigarette(s) | 20.95 (0.91) | 15.84 (0.82) | 8.76 (0.61) |
Vaped nicotine at last use or smoked regular cigarette(s) | 12.44 (0.71) | 7.88 (0.55) | 3.96 (0.36) |
Smoked regular cigarette(s) | 10.06 (0.63) | 5.71 (0.45) | 3.23 (0.34) |