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Table 3 Univariable and multivariable logistic regression derived coefficients (OR), 95% confidence intervals and P value, for the association between parents’ oral health knowledge and parents’ education levels

From: Are parents’ education levels associated with either their oral health knowledge or their children’s oral health behaviors? A survey of 8446 families in Wuhan

Oral health

Educational level

Univariable

Multivariable

Mother

Father

Mother

Father

OR

95%CI

P

OR

95%CI

P

OR

95%CI

P

OR

95%CI

P

Gingival bleeding is normal when brushing teeth (1 = “wrong”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.40

1.22–1.59

< 0.001

1.36

1.18–1.56

< 0.001

1.25

1.07–1.47

0.006

1.19

1.01–1.40

0.040

College

1.56

1.35–1.81

< 0.001

1.69

1.44–1.97

< 0.001

1.39

1.13–1.71

0.002

1.26

1.03–1.55

0.027

Undergraduate or above

2.21

1.93–2.13

< 0.001

1.89

1.65–2.15

< 0.001

2.05

1.64–2.56

< 0.001

1.12

0.90–1.39

0.300

Gingivitis is caused by bacterial infection (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.39

1.12–1.72

0.003

1.19

0.94–1.49

0.148

1.28

0.98–1.67

0.068

1.03

0.79–1.35

0.812

College

1.70

1.32–2.18

< 0.001

1.35

1.04–1.74

0.022

1.40

0.99–1.99

0.058

1.05

0.75–1.49

0.769

Undergraduate or above

1.93

1.53–2.42

< 0.001

1.89

1.50–2.38

< 0.001

1.40

0.96–2.04

0.085

1.43

0.98–2.09

0.064

Tooth-brushing helps

in preventing gingivitis (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.42

1.21–1.67

< 0.001

1.09

0.92–1.29

0.305

1.47

1.21–1.78

< 0.001

0.87

0.71–1.05

0.151

College

1.93

1.60–2.33

< 0.001

1.50

1.24–1.82

< 0.001

1.79

1.39–2.32

< 0.001

0.94

0.73–1.21

0.626

Undergraduate or above

2.92

2.43–3.51

< 0.001

2.41

2.02–2.88

< 0.001

2.42

1.81–3.23

< 0.001

1.21

0.91–1.61

0.180

Dental caries is caused by bacteria (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.39

1.20–1.62

< 0.001

1.07

0.92–1.26

0.379

1.48

1.24–1.77

< 0.001

0.85

0.71–1.02

0.850

College

1.90

1.60–2.26

< 0.001

1.47

1.23–1.76

< 0.001

1.88

1.48–2.39

< 0.001

0.90

0.71–1.14

0.901

Undergraduate or above

2.65

2.25–3.13

< 0.001

2.11

1.80–2.48

< 0.001

2.46

1.89–3.20

< 0.001

1.05

0.81–1.36

1.048

Sugar intake can cause dental caries (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.04

0.89–1.22

0.602

0.96

0.81–1.14

0.644

1.08

0.89–1.31

0.429

0.90

0.74–1.10

0.901

College

1.35

1.13–1.62

0.001

1.19

0.99–1.44

0.069

1.29

1.00–1.66

0.044

0.97

0.75–1.24

0.968

Undergraduate or above

1.82

1.53–2.16

< 0.001

1.60

1.35–1.89

< 0.001

1.65

1.26–2.17

< 0.001

1.09

0.84–1.43

1.093

Fluoride protects teeth from decay (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.29

1.14–1.45

< 0.001

1.20

1.05–1.36

0.006

1.21

1.05–1.41

0.010

1.05

0.90–1.22

0.558

College

1.73

1.52–1.98

< 0.001

1.52

1.32–1.75

< 0.001

1.53

1.27–1.84

< 0.001

1.06

0.88–1.28

0.561

Undergraduate or above

3.08

2.71–3.50

< 0.001

2.533

2.24–2.87

< 0.001

2.49

2.03–3.05

< 0.001

1.30

1.06–1.58

0.012

PFS help in preventing dental caries (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.68

1.42–1.98

< 0.001

1.30

1.09–1.55

0.003

1.42

1.16–1.74

0.001

1.08

0.88–1.32

0.486

College

2.14

1.76–2.61

< 0.001

2.10

1.70–2.59

< 0.001

1.38

1.05–1.81

0.022

1.53

1.16–2.02

0.003

Undergraduate or above

4.14

3.36–5.10

< 0.001

3.59

2.95–4.36

< 0.001

2.25

1.63–3.10

< 0.001

2.03

1.49–2.76

< 0.001

Oral health is essential to general health (1 = “correct”)

Middle school or below

Reference

  

Reference

  

Reference

  

Reference

  

High school

1.69

1.40–2.03

< 0.001

1.40

1.15–1.69

0.001

1.47

1.18–1.84

0.001

1.10

0.88–1.38

0.395

College

2.82

2.23–3.56

< 0.001

2.15

1.71–2.71

< 0.001

1.97

1.43–2.70

< 0.001

1.29

0.95–1.74

0.103

Undergraduate or above

4.82

3.78–6.15

< 0.001

4.34

3.46–5.45

< 0.001

2.72

1.88–3.93

< 0.001

2.03

1.43–2.89

< 0.001

  1. Significant associations (P < 0.05) are in bold
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BMC Oral Health

ISSN: 1472-6831

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