Table 3 Change of the mean DMFT and SiC indices of Korea 2000-2012 by age

8

Total

1.04

2.73

2.63

0.68

2.02

2.97

0.67

1.97

2.94

−35.58

−27.84

−1.47

−2.48

Urban

1.12

2.93

2.62

0.69

2.08

3.01

0.68

2.00

2.94

−39.29

−31.74

−1.45

−3.85

Rural

0.91

2.36

2.59

0.61

1.85

3.03

0.45

1.43

3.18

−50.55

−39.41

−26.23

−22.70

0.015

0.544

0.437

<0.001

0.162

0.823

12

Total

2.86

6.13

2.14

2.16

5.16

2.39

1.84

4.51

2.45

−35.66

−26.43

−14.81

−12.60

Urban

2.77

6.06

2.19

2.09

5.06

2.42

1.82

4.48

2.46

−34.30

−26.07

−12.92

−11.46

Rural

3.02

6.26

2.07

2.40

5.57

2.32

2.09

4.92

2.35

−30.79

−21.41

−12.92

−11.67

0.144

0.676

0.045

0.314

0.159

0.205