Table 2 Linear regression analysis for the Warnings Impact Score (WIS)

(Intercept)

−0.81

0.03 [ −0.33, 0.40]

0.86

Assessment of the validity of warnings

0.06

0.13 [0.03, 0.22]

0.01

Smoking risk assessment

0.05

0.22 [0.13, 0.32]

0.00

Use of neutral covers (ref.: no)

Yes

−0.01

−0.01 [ −0.24, 0.22]

0.96

Cigarette dependence (score FTCD)

−0.05

−0.13 [ −0.25, −0.01]

0.04

Smoking status (ref.: regularly)

Occasionally

0.29

0.29 [0.04, 0.54]

0.02

Number of years smoking (ref.: ≤3 years)

4–10 years

−0.09

−0.09 [ −0.40, 0.23]

0.59

>10 years

−0.35

−0.35 [ −0.70, 0.00]

0.05

Household income (ref.: ≤2000 Euros)

2001–3000 Euros

0.03

0.03 [ −0.19, 0.25]

0.82

>3000 Euros

0.04

0.04 [ −0.22, 0.30]

0.76

Educational level (ref.: still in school/compulsory)

Apprenticeship/vocational

−0.13

−0.13 [ −0.43, 0.16]

0.38

High school diploma

0.15

0.15 [ −0.16, 0.46]

0.36

University degree

−0.11

−0.11 [ −0.49, 0.26]

0.55

Age group (ref.: 15–23 years)

>23 years

0.19

0.19 [ −0.13, 0.50]

0.25

Sex (ref.: male)

Female

−0.01

−0.01 [ −0.19, 0.17]

0.95