Table 5. Predictor variables included in the regression analyses in the order they were included.
| Variable | Levels of
Variable |
Wave 1 to 2/3
quitting |
Wave 2 to 3/4
quitting |
Wave 2/3/4
quitting |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M | S5 | S6 | S7 | S8 | M | S5 | S6 | S7 | S8 | M | S5 | S6 | S7 | S8 | ||
| Age range | 6 | 8 | 6 | 8 | 6 | 7 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | |||
| Gender | 2 | 9 | ||||||||||||||
| Total household income | 5T | 7 | 3 | 4 | 10 | 4 | 1 | 1 | 1 | 1 | 1 | 10 | 4 | 5 | 10 | 10 |
| Currently enrolled in a degree program | 2 | 6 | ||||||||||||||
| Current someday cigarette smokers | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
| Cigarettes per day | C | 2 | 2 | 2 | 2 | 2 | 6 | 2 | 2 | |||||||
| Frequently crave tobacco product(s) | 5T | 2 | 2 | 2 | ||||||||||||
| Usually wants to smoke/use tobacco right
after waking |
5T | 5 | 7 | 3 | 4 | 3 | 3 | 3 | 7 | 7 | 7 | |||||
| Have tried to quit completely | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 8 | 4 | 3 | |||||
| Would find it hard to stop smoking/tobacco
for a while |
5T | 6 | 6 | |||||||||||||
| Plans to quit smoking/using tobacco
product(s) for good |
2 | 3 | 3 | 3 | ||||||||||||
| Rules about smoking a combustible tobacco | 3T | 4 | 7 | 5 | 3 | 5 | 4 | 7 | 4 | 3 | 4 | |||||
| Most people I spend time with are tobacco
users |
5T | 5 | 5 | 5 | 5 | |||||||||||
| Lived with regular smoker who smoked inside
your home during childhood |
3 | 4 | 3 | 4 | 4 | 5 | ||||||||||
| How often have you seen a list of chemicals in
tobacco products in last 12 months |
5T | 7 | ||||||||||||||
| How often noticed health warnings on
cigarette packages in past 30 days |
5T | 9 | ||||||||||||||
| Overall opinion of tobacco | 5T | 6 | 5 | 6 | 6 | 5 | 6 | 6 | ||||||||
| Body mass index | C | 9 | 7 | 9 | 7 | 6 | 8 | 5 | 6 | 6 | 9 | 7 | 9 | 9 | ||
| Becoming very distressed with something
reminded of past |
4T | 7 | ||||||||||||||
| Ever used marijuana, hash, THC or grass | 2 | 4 | 3 | |||||||||||||
| Hours spent watching TV on a typical day | 5T | 8 | 8 | |||||||||||||
| Total adjustment variables | 9 | 7 | 7 | 10 | 7 | 8 | 9 | 7 | 7 | 8 | 10 | 8 | 9 | 10 | 10 | |
C = continuous variable, M = Main analysis, S = Sensitivity analysis, T = treated as a linear trend in regressions