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Table 2 Poisson regression analysis of the factors associated with the increased number of dental decay

From: U-shaped association between untreated caries and body mass index in adults at Rabat dental University hospital, Morocco: cross sectional study

 

DT mean ± SD

Univariate analysis

Mulivariate analysis

PR

95% CI

p

PR

95% CI

p

Age (/year)

 

1.007

0.99–1.01

0.13

0.98

0.97–1.00

0,05

Gender

 Male

5.4 ± 3.7

1.03

0.86–1.24

0.68

   

 Female

5.2 ± 3.4

1

     

Income

 Low

7.1 ± 3

1.65

1.30–2.07

<0.001

1.45

1.05–2.02

0.02

 Medium

5.4 ± 3.5

1.25

  

1.06

 

0.62

 High

4.3 ± 3.7

1

1.02–1.52

0.02

1

0.83–1.34

 

Frequency of tooth brushing

 0 or 1/day

6.8 ± 3. 3

1.54

1.20–1.97

0.001

1.006

0.74–1.35

0.97

 2/day

5.6 ± 3.6

1.34

1.06–1.58

0.009

1.03

0.83–1.28

0.74

 3/day

4.2 ± 3.6

1

  

1

  

Tooth brushing motion

 Appropriate

4.5 ± 3.5

0.65

0.54–0.77

<0.001

0.81

0.98–1.50

0.06

 Inappropriate

7 ± 3.4

1

  

1

  

 Age at beginning tooth brushing

 

1.16

1.08–1.24

<0.001

1.15

1.05–1.25

0.02

Education level

 Non and primary

6 ± 3.6

1.35

1.09–1.68

0.006

1.14

0.81–1.58

0.43

 Secondary

6.1 ± 3.4

1.49

 1.23–1.81

<0.001

1.37

 1.09–1.71

0.006

 University

4.4 ± 3.5

1

  

1

  

BMI

 Underweight

6.4 ± 3.9

1.58

1.29–1.94

<0.001

1.66

1.30–2.12

<0.001

 Normal weight

4.4 ± 3.5

1

  

1

  

 Overweight and obese

5.3 ± 3.2

1.28

1.02–1.60

0.02

1.30

1.03–1.65

0.02

SDI

1.1 ± 0.3

0.88

0.79–0.99

0.03

0.61

0.50–0.75

<0.001

CSI*

0.5 (0.16–1.16)

0.94

0.84–1.07

0.40

   

GI

 

1.19

1.06–1.33

0.002

1.59

1.30–1.94

<0.001

Reason of the dental attendance

 Planned visit

4.1 ± 3.3

0.73

0.54–0.90

0.004

0.94

0.74–1.18

0.62

 Acute visit

5.7 ± 3.7

1

  

1

  
  1. * Median (interquartile range)
  2. SD standard deviation, F female, M Male, BMI body mass index, DT number of decayed untreated teeth, GI gingival index, CIS calculus surface index, SDI simplified Debris index, PR prevalence ratio, 1 reference category