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Table 2 Simple regression analysis of predictor factors on DMFT mean and edentulousness percentage in all 31 provinces

From: Determinants of oral health status: an ecological study in Iran

Outcome measure

Independent Variables

B(SE)

(Unstandardized coefficient and standard error)

r

95% CI for B

R square in percentage

DMFT

Life expectancy

-0.43(0.33)

-0.24

-1.1- 0.23

5

Mean Years of Schooling

-0.31(0.32)

-0.16

-0.96- 0.36

2

Expected years of schooling

-0.00(0.39)

-0.00

-0.8- 0.79

0.1

GNI

-0.01(0.13)

-0.02

-0.27 -0.24

0.1

Sugar Consumption

0.06(0.10)

0.14

-0.15-0.28

2

Percentage of Smokers*

0.11(0.03)

0.51

0.04–0.18

26

Fluoride concentration **

-3.03(0.83)

-0.64

-5.1- -1.61

36

Dentists per 10,000 people

-0.04(0.26)

-0.02

− 0.57- 0.49

0.1

Edentulousness

Life expectancy

-1.01(0.65)

-0.27

-2.43-0.33

7

Mean Years of Schooling

-1.01(0.63)

-0.28

-2.31-0.28

8

Expected years of schooling

-0.18(0.78)

-0.04

-1.7-1.4

0.2

GNI

0.12(0.25)

0.09

-0.39-0.64

0.8

Sugar Consumption

0.12(0.13)

0.19

-0.16-0.39

3

Percentage of Smokers*

0.24(0.07)

0.55

0.1–0.38

30

Fluoride concentration *

-4.17(1.95)

-0.37

-8.1- -0.17

14

Dentists per 10,000 people

-0.43(0.51)

-0.10

-1.4-0.64

2

  1. Note- *= P-value < 0.05, **= P-value < 0.001