Table 3 Post-hoc pairwise multiple comparisons of change in incorrect or uncertain risk beliefs using adjusted between and within subject contrasts

Lower nicotine

Between

Text

Ref

Ref

Ref

Ref

Graphic

0.81 (0.38, 1.76)

0.36 (0.16, 0.77)^**

0.42 (0.19, 0.92)^*

0.57 (0.26, 1.26)

Within

Text

Ref

3.74 (1.83, 7.68)^***

6.08 (2.89, 12.78)^***

6.85 (3.23, 14.52)^***

Graphic

Ref

1.65 (0.82, 3.29)

3.14 (1.55, 6.35)^***

4.81 (2.33, 9.92)^***

Lower tar

Between

Text

Ref

Ref

Ref

Ref

Graphic

1.49 (0.68, 3.25)

0.55 (0.25, 1.20)

0.43 (0.19, 0.96)^*

0.52 (0.23, 1.18)

Within

Text

Ref

3.31 (1.61, 6.82)^***

6.82 (3.20, 14.55)^***

8.14 (3.77, 17.58)^***

Graphic

Ref

1.22 (0.61, 2.45)

1.99 (0.99, 4.00)

2.87 (1.41, 5.86)^***

Less addictive

Between

Text

Ref

Ref

Ref

Ref

Graphic

1.60 (0.67, 3.81)

0.58 (0.25, 1.31)

0.51 (0.23, 1.13)

0.62 (0.28, 1.36)

Within

Text

Ref

3.29 (1.44, 7.50)^**

5.87 (2.58, 13.33)^***

9.99 (4.30, 23.22)^***

Graphic

Ref

1.18 (0.54, 2.59)

1.87 (0.87, 4.04)

3.86 (1.80, 8.26)^***

Less cancerous

Between

Text

Ref

Ref

Ref

Ref

Graphic

0.48 (0.17, 1.36)

0.44 (0.16, 1.16)

0.28 (0.11, 0.74)^*

0.43 (0.17, 1.09)

Within

Text

Ref

2.40 (1.05, 5.47)^*

4.44 (1.94, 10.15)^***

4.87 (2.13, 11.17)^***

Graphic

Ref

2.17 (0.84, 5.60)

2.61 (1.02, 6.68)^*

4.30 (1.68, 10.97)^***

Fewer chemicals

Between

Text

Ref

Ref

Ref

Ref

Graphic

1.18 (0.49, 2.84)

0.70 (0.30, 1.65)

0.51 (0.22, 1.21)

0.61 (0.26, 1.45)

Within

Text

Ref

4.84 (2.24, 10.44)^***

7.47 (3.40, 16.40)^***

9.65 (4.32, 21.56)^***

Graphic

Ref

2.87 (1.35, 6.08)^**

3.25 (1.53, 6.89)^***

4.99 (2.31, 10.78)^***

Healthier

Between

Text

Ref

Ref

Ref

Ref

Graphic

1.30 (0.46, 3.72)

0.52 (0.19, 1.41)

0.43 (0.16, 1.13)

0.49 (0.19, 1.28)

Within

Text

Ref

3.77 (1.58, 9.04)^***

6.45 (2.67, 15.54)^***

9.76 (3.99, 23.86)^***

Graphic

Ref

1.52 (0.62, 3.72)

2.12 (0.88, 5.13)

3.69 (1.54, 8.88)^***

Safer

Between

Text

Ref

Ref

Ref

Ref

Graphic

0.94 (0.33, 2.66)

0.32 (0.12, 0.84)^*

0.36 (0.14, 0.94)^*

0.23 (0.09, 0.60)^**

Within

Text

Ref

4.07 (1.67, 9.92)^***

5.64 (2.31, 13.74)^***

7.25 (2.96, 17.77)^***

Graphic

Ref

1.37 (0.53, 3.51)

2.18 (0.88, 5.39)

1.79 (0.71, 4.51)

Help with quitting

Between

Text

Ref

Ref

Ref

Ref

Graphic

0.74 (0.24, 2.21)

0.82 (0.34, 1.95)

0.79 (0.34, 1.84)

0.98 (0.42, 2.28)

Within

Text

Ref

8.79 (3.35, 23.04)^***

16.68 (6.29, 44.25)^***

25.69 (9.52, 69.34)^***

Graphic

Ref

9.73 (3.53, 26.83)^***

17.82 (6.38, 49.73)^***

34.16 (11.92, 97.90)^***