Model 1

Model 2

Model 3

OR

95%CI

OR

95%CI

OR

95%CI

Boys vs. girls

1.33

1.00 - 1.17

1.32

0.98 - 1.76

1.31

0.97 - 1.75

Athens vs. Thessaloniki

0.86

0.63 - 1.78

0.85

0.61 - 1.16

0.99

0.70 - 1.42

Parents with academic education

0.86

0.63 - 1.18

0.88

0.63 - 1.21

0.89

0.64 - 1.23

Preterm

0.91

0.61 - 1.37

0.89

0.59 - 1.35

0.90

0.59 - 1.36

Maternal history of eczema

2.03

1.56 - 3.40*

2.40

1.62 - 3.56*

2.26

1.51 - 3.37*

Paternal history of eczema

2.36

1.52 - 3.66*

2.36

1.52 - 3.68*

2.41

1.54 - 3.77*

Sensitization to perennial

0.82

0.48 - 1.39

0.85

0.50 - 1.45

0.82

0.48 - 1.41

Dampness and visible mould

1.40

0.92 - 2.14

1.35

0.88 - 2.08

1.34

0.87 - 2.07

Breast feeding

1.07

0.75 - 1.52

1.11

0.78 - 1.58

Attending nursery school

1.10

0.72 - 1.69

1.08

0.70 - 1.66

Mother smoking habits

1.31

0.97 - 1.77

1.28

0.94 - 1.74

Sharing bedroom

0.89

0.63 - 1.26

0.88

0.62 - 1.26

Pets in house

1.45

0.93 - 2.26

1.51

0.96 - 2.37

Contact with farm animals

0.54

0.15 - 1.87

0.57

0.16 - 1.98

Use of air condition

0.89

0.52 - 1.50

Central heating

1.17

0.84 - 1.62

Use fitted carpets in bedrooms

1.29

0.95 - 1.76

Use foam pillows

1.35

0.89 - 2.05

Use synthetic fiber pillows

0.65

0.39 - 1.06

Use feather pillows

0.93

0.65 - 1.35

Use synthetic quilts for bedding

1.04

0.70 - 1.55

Use feather quilts for bedding

0.61

0.34 - 1.08

Use blankets for bedding

0.59

0.41 - 0.86*