Table 3 Odds ratio (OR) estimates for associations between caries experience (dmft \(\ge\) 1 vs. dmft = 0) and socioeconomic characteristics, attendance at the toddler check-up and age at kindergarten check-up in the kindergarten subset

Sex: Male

1

–

–

Sex: Female

0.94

from 0.79 to 1.12

0.47

Origin of primary caretaker: Switzerland

1

–

–

‘Origin of primary caretaker‘Western

1.61

From 1.22 to 2.10

0.0006

‘Origin of primary caretaker‘South America, Africa, Asia

3.57

From 2.75 to 4.65

< 0.0001

‘Origin of primary caretaker‘Eastern Europe, Turkey, Russia

4.67

From 3.62 to 6.04

< 0.0001

‘Origin of primary caretaker‘Other

2.28

from 1.52 to 3.39

< 0.0001

Income: < 25’000

1

–

–

Income25’000-49’999

0.76

From 0.58 to 0.98

0.038

Income50’000-99’999

0.60

From 0.46 to 0.77

< 0.0001

Income \(\ge\) 100’000

0.44

From 0.31 to 0.61

< 0.0001

IncomeIncome missing

0.90

From 0.48 to 1.70

0.74

Savings: < 100’000

1

–

–

Savings\(\ge\) 100’000

0.63

From 0.50 to 0.80

0.0002

SavingsSavings missing

0.78

From 0.45 to 1.32

0.36

Number of siblings older/same age: 0

1

–

–

‘Number of siblings older/same age‘1

1.30

From 1.07 to 1.58

0.009

‘Number of siblings older/same age‘2

1.47

From 1.10 to 1.95

0.009

‘Number of siblings older/same age‘\(\ge\) 3

2.24

From 1.53 to 3.28

< 0.0001

Living situation: Mother and father

1

–

–

‘Living situation‘Mother

1.02

From 0.76 to 1.37

0.88

‘Living situation‘Father

0.96

From 0.36 to 2.28

0.94

‘Living situation‘Neither parent

2.68

from 0.62 to 10.67

0.16

Clinic allocation: SAU

1

–

–

‘Clinic allocation‘SUS

0.91

From 0.65 to 1.27

0.58

‘Clinic allocation‘SPA

1.06

From 0.78 to 1.45

0.70

‘Clinic allocation‘SWE

1.14

From 0.83 to 1.56

0.43

‘Clinic allocation‘SMU

0.57

From 0.37 to 0.87

0.01

‘Clinic allocation‘SNO

0.97

From 0.74 to 1.28

0.83

‘Age at kindergarten check-up‘

1.54

From 1.18 to 2.02

0.002

‘Toddler check-up‘

0.84

From 0.70 to 1.01

0.071