Table 3.
Estimated Coefficients, Standard Errors, and p-Values From the Linear Mixed Effects Model Predicting Number of Cigarettes Consumed Per Day
| Variable | Coefficient | Standard error | p |
|---|---|---|---|
| Intercept | 3.33 | 1.17 | .005 |
| Ecig WP effect | −0.02 | 0.01 | .005 |
| Ecig BP effect | 0.03 | 0.01 | .034 |
| Satisfaction WP effect | −0.07 | 0.07 | .330 |
| Satisfaction BP effect | 0.02 | 0.14 | .886 |
| Day | −0.04 | 0.02 | .069 |
| Sex (female) | −0.33 | 0.55 | .544 |
| Age | 0.01 | 0.02 | .578 |
| Education | 0.66 | 0.38 | .087 |
| Menthol preference | −0.53 | 0.68 | .434 |
| Ecig WP x satisfaction WP | −0.01 | 0.00 | .033 |
| Ecig WP x menthol preference | 0.03 | 0.01 | .006 |
WP = within-person; BP = between-person.