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. 2009 Mar 18;11(4):394–403. doi: 10.1093/ntr/ntp004

Table 3.

Intervention group differences on secondary outcomes

Control group Experimental group p value
How upsetting was information: meana 1.40 2.22 .0001
PANAS positive affectb
    Baseline: mean 29.0 30.3 .053
    Postintervention: change from baseline 2.00 2.80 .08
PANAS negative affectb
    Baseline: mean 16.2 15.4 .18
    Postintervention: change from baseline −0.70 0.20 .04
Likelihood will try to quit smoking as a result of intervention
    Postintervention: meana 3.59 3.81 .02
Likelihood will use provided materials to try to quit
    Postintervention: meana 3.85 3.95 .23
Perceived risk of lung diseasea
    Baseline: mean 3.48 3.49 .89
    Postintervention: change from baseline 0.07 −0.04 .10
    One month: change from baseline
Perceived risk of smoking-related diseasea
    Baseline: mean 3.64 3.64 .97
    Postintervention: change from baseline 0.04 −0.05 .19
    One month: change from baseline −0.17 −0.20 .70

Note. All measures were assessed among smoking and nonsmoking participants at each time point.

a

Likert scale ranging from 1 = “not at all” to 5 = “extremely.”

b

Scale range = 10–50, where lower scores represent less affect.