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. Author manuscript; available in PMC: 2011 Jun 10.
Published in final edited form as: Eur Arch Paediatr Dent. 2011 Jun;12(3):133–138. doi: 10.1007/BF03262794

Table 1. Decayed and filled surfaces (dfs) for 234 children enrolled in the study by age.

Age N Mean
dfs		 Std
Dev		 Min Max 95%LCL 95%UCL
1year olds 37 .03 .16 0 1 -.03 .08
2year olds 67 .70 2.03 0 11 .21 1.20
3year olds 52 1.25 3.36 0 20 .31 2.19
4year olds 70 3.21 6.23 0 34 1.73 4.70
5year olds 8 3.50 4.04 0 12 .13 6.87

Kruskal-Wallis test, p<.0001