Table 2.
SCQ-A Mediation Analysis Summary
| Outcome variables and PTSD symptomsa | SCQ-A mediator variables | Estimate | t Value/Χ2* | Proportion of mediation (%)b |
| Tobacco dependence (Fagerström Test for Nicotine Dependence total) | ||||
| PTSD symptom total (CAPS) | Negative affect reduction (NAF) | 0.16 | 5.73 | 15.26 |
| Avoidance and numbing (CAPS criterion C) | Negative affect reduction (NAF) | 0.16 | 5.73 | 14.57 |
| Difficulty to refrain from smoking | ||||
| PTSD symptom total (CAPS) | Negative affect reduction (NAF) | 0.21 | 38.36 | 8.26 |
| Avoidance and numbing (CAPS criterion C) | Negative affect reduction (NAF) | 0.20 | 38.50 | 13.08 |
| Abstinence self-efficacy—Negative affect | ||||
| PTSD symptom total (CAPS) | Negative affect reduction (NAF) | −0.096 | −7.71 | 40.58 |
| Avoidance and numbing (CAPS criterion C) | Negative affect reduction (NAF) | −0.095 | −7.61 | 36.71 |
Note. CAPS = Clinician Administered PTSD Scale; PTSD = posttraumatic stress disorder; SCQ-A = Smoking Consequences Questionnaire—Adult.
a
PTSD symptom variables are listed under each smoking-related outcome variable.
b
95% CIs range from ±1.76%–3.14%
*p < .0001 for all t and χ2 values