Table 4 AIC values for the post-age-of-sale implantation trend analysis (16–17 versus and 18–24 year olds)
| Â | Smoking | Ever smoking | Quit attempts among past-year smokers | |||
|---|---|---|---|---|---|---|
16–17 | 18–24 | 16–17 | 18–24 | 16–17 | 18–24 | |
Linear trend | 25,407 | 136,031 | 24,867 | 133,131 | 3653 | 39,621 |
Quadratic trend | 25,426 | 136,025 | 24,879 | 133,127 | 3653 | 39,621 |
Cubic trend | 25,428 | 136,026 | 24,880 | 133,127 | 3653 | 39,621 |
Linear best fitting segmented | 25,408 | 136,028 | 24,868 | 133,129 | 3655 | 39,623 |
Quadratic best fitting segmented | 25,413 | 136,027 | 24,876 | 133,129 | 3655 | 39,623 |
Cubic best fitting segmented | 25,413 | 136,028 | 24,875 | 133,129 | 3655 | 39,634 |