Table 3 Odd ratios and confidence interval of variables associated with DK for air pollution in multiple logistic regression analysis

Age group

18-24 (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

25-34 (1)

1.32

[1.07 - 1.62]

1.28

[0.96 - 1.72]

1.62

[1.32 - 1.98]

35-44 (2)

2.05

[1.67 - 2.52]

2.09

[1.56 - 2.81]

2.20

[1.79 - 2.70]

45-54 (3)

2.08

[1.68 - 2.57]

1.82

[1.34 - 2.46]

2.13

[1.72 - 2.63]

55-64 (4)

2.32

[1.85 - 2.89]

2.46

[1.79 - 3.38]

2.30

[1.84 - 2.87]

Gender female (1)

1.76

[1.56 - 1.99]

1.77

[1.49 - 2.10]

1.79

[1.59 - 2.03]

Education per 10 years

0.89

[0.79 - 1.00]

0.86

[0.72 - 1.01]

0.82

[0.73 - 0.92]

Country NL (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

Country UK (1)

1.01

[0.83 - 1.23]

0.80

[0.60 - 1.06]

0.97

[0.79 - 1.18]

Country DE (2)

0.75

[0.62 - 0.92]

0.62

[0.47 - 0.82]

0.70

[0.57 - 0.85]

Country ES (3)

1.04

[0.84 - 1.29]

1.04

[0.76 - 1.41]

1.00

[0.80 - 1.24]

Country FI (4)

1.34

[1.11 - 1.63]

1.08

[0.81 - 1.42]

0.98

[0.81 - 1.19]

Financial position - not a problem at all (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

FP – not a problem, but have to be careful (1)

0.82

[0.70 - 0.96]

0.97

[0.77 - 1.21]

0.95

[0.81 - 1.11]

FP – with a slight difficulty (2)

0.83

[0.70 - 0.99]

0.84

[0.65 - 1.08]

0.88

[0.74 - 1.05]

FP – with a large difficulty (3)

0.75

[0.60 - 0.94]

0.78

[0.57 - 1.08]

0.91

[0.72 - 1.14]

Household net income: €1000 or less (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

Hh income €1001 to €1500 (1)

0.85

[0.70 - 1.02]

0.87

[0.66 - 1.13]

0.76

[0.63 - 0.92]

Hh income €1501 to €2500 (2)

0.65

[0.53 - 0.79]

0.64

[0.48 - 0.85]

0.64

[0.52 - 0.78]

Hh income €2001 to €3000 (3)

0.64

[0.53 - 0.78]

0.56

[0.43 - 0.73]

0.61

[0.51 - 0.74]

Hh income > €3001 (4)

0.64

[0.53 - 0.78]

0.61

[0.46 - 0.81]

0.61

[0.50 - 0.75]

General health score per 25

1.29

[1.14 - 1.46]

1.06

[0.89 - 1.26]

1.24

[1.09 - 1.40]

Awareness of health effects associated with air pollution - aware

0.91

[0.80 - 1.04]

0.82

[0.68 - 0.99]

0.87

[0.76 - 0.99]

Environmental concern: Low (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

Environmental concern: Medium (1)

1.33

[1.13 - 1.56]

1.39

[1.10 - 1.74]

1.19

[1.01 - 1.39]

Environmental concern: High (2)

1.14

[0.96 - 1.35]

1.34

[1.05 - 1.72]

1.00

[0.84 - 1.19]

Severe air pollution concerns – yes (1)

1.12

[0.94 - 1.34]

1.22

[0.94 - 1.58]

1.23

[1.03 - 1.47]

Sensitive to air pollution – yes

0.91

[0.78 - 1.06]

0.94

[0.76 - 1.18]

0.89

[0.77 - 1.04]

Difficulty to relax in a place with air pollution - yes

0.85

[0.74 - 0.97]

0.94

[0.77 - 1.14]

0.86

[0.75 - 0.98]

Government doing their best to reduce air pollution - agree (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

Government doing their best to reduce air pollution - neutral (1)

1.28

[1.09 - 1.50]

1.51

[1.19 - 1.91]

1.22

[1.03 - 1.44]

Government doing their best to reduce air pollution - disagree (2)

0.99

[0.85 - 1.16]

1.05

[0.84 - 1.31]

0.95

[0.82 - 1.11]

Policy on air pollution aimed to improve wellbeing- agree (baseline)

1

[0 - 0]

1

[0 - 0]

1

[0 - 0]

Policy on air pollution aimed to improve wellbeing neutral (1)

1.30

[1.13 - 1.50]

1.50

[1.22 - 1.85]

1.47

[1.27 - 1.70]

Policy on air pollution aimed to improve wellbeing disagree (2)

0.91

[0.76 - 1.08]

1.01

[0.79 - 1.30]

0.91

[0.77 - 1.08]

Severe air annoyance - yes

0.99

[0.81 - 1.23]

0.97

[0.72 - 1.31]

0.86

[0.70 - 1.06]

Severe traffic - yes

0.93

[0.75 - 1.17]

0.90

[0.65 - 1.24]

0.95

[0.76 - 1.19]