Table 2.
Variable | PTSD | Control | Chi-square | Phi coefficient | |
---|---|---|---|---|---|
Location | Yes | 14 | 8 | = 1.311 | φ = 0.136 |
No | 24 | 25 | |||
Social environment | Yes | 12 | 9 | = 0.157 | φ = 0.047 |
No | 26 | 24 | |||
Activity | Yes | 13 | 8 | = 1.146 | φ = 0.109 |
No | 25 | 25 | |||
Positive affect | Yes | 3 | 4 | = 0.355 | φ = −0.071 |
No | 35 | 29 | |||
Negative affect | Yes | 22 | 8 | = 8.198** | φ = 0.340 |
No | 16 | 25 | |||
Trauma reminders | Yes | 9 | 0 | Fisher’s p = .003** | n/a |
No | 29 | 33 | |||
Cravings | Yes | 28 | 17 | = 3.740 | φ = 0.230 |
No | 10 | 16 |
Note. PTSD = posttraumatic stress disorder. A positive phi coefficient indicates the extent to which that factor was more likely to be cited by individuals with PTSD as a factor in smoking lapse. Due to a cell size <5, a two-tailed Fisher’s exact test was calculated for the trauma reminders outcome.
*p < .05. **p < .01.