Year | Living region | Age 8 | Age 12 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
N | DMFT=0, % | P* | Sealed, % | P* | N | DMFT=0, % | P* | Sealed, % | P* | ||
2000 | Total | 1194 | 53.4 | 0.67 | 19.2 | 0.877 | 1203 | 26.0 | 0.006 | 14.8 | 0.011 |
Urban | 780 | 52.9 | 19.4 | 784 | 28.6 | 16.7 | |||||
Rural | 414 | 54.3 | 18.8 | 419 | 21.2 | 11.2 | |||||
2006 | Total | 875 | 69.5 | 1.00 | 38.6 | <0.001 | 1775 | 39.1 | 0.041 | 33.0 | 0.237 |
Urban | 694 | 69.5 | 35.3 | 1386 | 40.4 | 33.8 | |||||
Rural | 181 | 69.6 | 51.4 | 369 | 34.1 | 30.4 | |||||
2012 | Total | 4379 | 69.6 | 0.559 | 62.1 | 0.367 | 5222 | 42.7 | 0.612 | 62.5 | 0.438 |
Urban | 3781 | 69.2 | 62.3 | 4565 | 42.8 | 63.0 | |||||
Rural | 598 | 76.3 | 58.3 | 657 | 41.0 | 55.4 | |||||
P-value** | |||||||||||
DMFT=0, % | Sealed, % | DMFT=0, % | Sealed, % | ||||||||
2000 - 2006 | Total | <0.001 | <0.001 | Total | <0.001 | <0.001 | |||||
Urban | <0.001 | <0.001 | Urban | <0.001 | <0.001 | ||||||
Rural | <0.001 | <0.001 | Rural | <0.001 | <0.001 | ||||||
2006 - 2012 | Total | 0.034 | <0.001 | Total | <0.001 | <0.001 | |||||
Urban | 0.08 | <0.001 | Urban | 0.044 | <0.001 | ||||||
Rural | 0.158 | <0.001 | Rural | <0.001 | <0.001 |