Mediation of association between pictorial warning exposure and quit intentions (n=2149)
| Mediation path | Mediated effect | 95% CI |
| Pictorial warning → negative affect → quit intentions | 0.16 | 0.14 to 0.19 |
| Pictorial warning → negative affect → perceived risk → quit intentions | 0.02 | 0.01 to 0.02 |
| Pictorial warning → reactance → quit intentions | −0.04 | −0.06 to −0.02 |
| Pictorial warning → reactance → perceived risk → quit intentions | −0.01 | −0.02 to −0.01 |
Table reports standardised path coefficients for mediated effects. Mediators were measured at immediate post-test (negative affect, message reactance) or the week 2 follow-up survey (perceived risk). Quit intentions were measured at week 4.