Table 1 IHIS studies: sample sizes and main results
From: Early childhood caries trends and surveillance shortcomings in the Czech Republic
1994 | 1997 | 2000 | 2003 | 2006 | |
|---|---|---|---|---|---|
Total number of study subjects | 3383 | 3578 | 3186 | 3337 | 3561 |
Mean dmft per child | 3.5 | 3.6 | 3.4 | 2.6 | 2.7 |
SE | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 |
Mean dt per child | 2.2 | 2.2 | 1.8 | 1.5 | 1.5 |
SE | 0.05 | 0.05 | 0.05 | 0.04 | 0.04 |
% of children with dmft =0 | 23.9 | 24.7 | 29.8 | 41.6 | 42.2 |