Table 2.
Univariate Linear Growth Curve Model Estimates, by Cigarette Group, for Investigational CPD and PANAS NA
| Growth components | NNC | VLNC |
|---|---|---|
| Means | ||
| CPD at week 1 | 18.8 (0.65)*** | 14.9 (0.45)*** |
| CPD slope | 0.6 (0.08)*** | −0.2 (0.05)** |
| NA at baseline | 15.2 (0.34)*** | 16.1 (0.24)*** |
| NA slope | 0.1 (0.07) | −0.1 (0.06) |
| Variances | ||
| CPD at week 1 | 95.7 (11.71)*** | 85.3 (9.48)*** |
| CPD slope | 0.9 (0.31)*** | 0.9 (0.30)** |
| NA at baseline | 15.2 (3.02)*** | 15.5 (2.14)*** |
| NA slope | 0.01 (0.23) | 0.8 (0.23)*** |
| Covariances | ||
| CPD at week 1 with CPD slope | 4.1 (1.10)*** | 0.2 (0.59) |
| NA at baseline with NA slope | 0.7 (0.60) | 0.1 (0.46) |
CPD = investigational cigarettes per day; NNC = normal nicotine content cigarette group; VLNC = very low nicotine content cigarette group; NA = PANAS Negative Affect scale.
*p < .05; **p < .01; ***p < .001.