Table 3 Parameter Estimates from GEE modeling of cigarette and alternative product use during multiple product sampling and single-product trial phases.
From: US smokers' reactions to a brief trial of oral nicotine products
| Â | Cigarettes | Alternative Products | ||||||
|---|---|---|---|---|---|---|---|---|
|  | B | SE | Wald χ 2 (df = 1) | p | B | SE | Wald χ 2 (df = 1) | p |
MULTIPLE PRODUCT SAMPLING PHASE | ||||||||
Intercept | 1.966 | 0.354 | 30.911 | <.001 | 0.682 | 0.486 | 1.969 | 0.161 |
Day | -0.012 | 0.019 | 0.436 | 0.509 | -0.015 | 0.022 | 0.43 | 0.512 |
Female (ref = Male) | 0.046 | 0.104 | 0.193 | 0.66 | -0.029 | 0.185 | 0.024 | 0.877 |
Less than HS (ref = More than HS) | 0.044 | 0.117 | 0.143 | 0.705 | -0.454 | 0.177 | 6.611 | 0.01 |
HS graduate (ref = More than HS) | -0.08 | 0.149 | 0.287 | 0.592 | -0.204 | 0.188 | 1.173 | 0.279 |
40 and under (ref = 55 and older) | -0.186 | 0.186 | 1.003 | 0.317 | 0.036 | 0.193 | 0.034 | 0.854 |
41-54 (ref = 55 and older) | -0.169 | 0.14 | 1.457 | 0.227 | 0.139 | 0.203 | 0.468 | 0.494 |
Camel Snus (ref = Stonewall) | -0.135 | 0.187 | 0.524 | 0.469 | 0.489 | 0.228 | 4.608 | 0.032 |
Marlboro Snus (ref = Stonewall) | -0.154 | 0.145 | 1.131 | 0.288 | 0.418 | 0.234 | 3.19 | 0.074 |
Commit (ref = Stonewall) | -0.274 | 0.158 | 3.006 | 0.083 | 0.515 | 0.216 | 5.685 | 0.017 |
HSI | 0.211 | 0.049 | 18.591 | <.001 | 0.022 | 0.071 | 0.092 | 0.762 |
SINGLE PRODUCT TRIAL PHASE | ||||||||
Intercept | 1.762 | 0.471 | 13.987 | <.001 | 0.414 | 0.526 | 0.62 | 0.431 |
Day | -0.039 | 0.014 | 8.186 | 0.004 | -0.006 | 0.023 | 0.08 | 0.777 |
Female (ref = Male) | -0.128 | 0.145 | 0.787 | 0.375 | -0.084 | 0.177 | 0.227 | 0.634 |
Less than HS (ref = More than HS) | 0.344 | 0.139 | 6.307 | 0.012 | -0.568 | 0.181 | 9.855 | 0.002 |
HS graduate (ref = More than HS) | -0.071 | 0.131 | 0.295 | 0.587 | -0.026 | 0.206 | 0.016 | 0.898 |
40 and under (ref = 55 and older) | -0.443 | 0.192 | 5.31 | 0.021 | -0.283 | 0.266 | 1.134 | 0.287 |
41-54 (ref = 55 and older) | -0.264 | 0.154 | 3.299 | 0.069 | 0.044 | 0.216 | 0.041 | 0.839 |
Camel Snus (ref = Stonewall) | 0.16 | 0.203 | 0.617 | 0.432 | 0.091 | 0.283 | 0.102 | 0.749 |
Marlboro Snus (ref = Stonewall) | -0.18 | 0.171 | 1.109 | 0.292 | 0.358 | 0.312 | 1.312 | 0.252 |
Commit (ref = Stonewall) | 0.007 | 0.19 | 0.001 | 0.97 | 0.49 | 0.263 | 3.467 | 0.063 |
HSI | 0.245 | 0.061 | 16.386 | <.001 | 0.234 | 0.081 | 8.265 | 0.004 |